09 - Appareils et instruments scientifiques et électriques
Produits et services
Consumer electronic products, namely, power transformers, power converters, switching power supplies, dc-dc converters, power converters, external power adapters, Electrical converters, Thermal electrical converters, Electric circuit switches, Electric current control devices, Electrical connectors, Electrical connector cables, Electrical interconnect connectors, Electrical interconnect cables, Electrical power connectors, Electrical power cables, Electrical power extension cords and cables, USB cables, USB connectors, Electrical thermal blocks, Diodes, Heat sinks for use with electrical components and devises, Thermal management systems, Battery holders and cases, Oscillators, Thermal sensors, Motion sensors, Pressure sensors, Passive sensors, Photosensitive sensors, Level sensors, proximity sensors, flow sensors, Electrical current resistors, Resistance resistors, Current sensing resistors, Electrical inductors, Electrical Chokes, Electrical filters, Fuses for overcurrent protection, Electrical and multimedia interface cables and connectors, Terminal blocks.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Consumer electronic products, namely, power transformers, power converters, switching power supplies, dc-dc converters, power converters, external power adapters, Electrical converters, Thermal electrical converters, Electric circuit switches, Electric current control devices, Electrical connectors, Electrical connector cables, Electrical interconnect connectors, Electrical interconnect cables, Electrical power connectors, Electrical power cables, Electrical power extension cords and cables, USB cables, USB connectors, Electrical thermal blocks, Diodes, Heat sinks for use with electrical components and devises, Thermal management systems, Battery holders and cases, Oscillators, Thermal sensors, Motion sensors, Pressure sensors, Passive sensors, Photosensitive sensors, Level sensors, proximity sensors, flow sensors, Electrical current resistors, Resistance resistors, Current sensing resistors, Electrical inductors, Electrical Chokes, Electrical filters, Fuses for overcurrent protection, Electrical and multimedia interface cables and connectors, Terminal blocks.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Consumer electronic products, namely, power transformers, electric power converters, switching power supplies, DC-DC converters, external power adapters, electrical converters, thermal electrical converters, electric circuit switches, electric current control devices, electrical connectors, electrical connector cables, electrical interconnect connectors, electrical interconnect cables, electrical power connectors, electrical power cables, electrical power extension cords and cables, USB cables, USB connectors, modular electrical thermal connector, connection and terminal blocks and electrical strip blocks, diodes, Passive heat sinks for use in board level electrical systems and board level power components; consumer electronic products, namely, thermal management systems for electrical components and for electric systems, comprised primarily of Heat Sinks for use in electronic components, and also including Peltier devices in the nature of cooling and heating apparatus, Thermal Electric Modules, Thermal Substrate, and battery holders and cases; consumer electronic products, namely, oscillators; consumer electronic products, namely, sensors for electrical equipment comprised of thermal, motion, pressure, and photosensitive sensors and Liquid and Spatial Level, proximity, and flow sensors; electrical current resistors comprised of thermistors, varistors, and photo and light dependent, surface mount, and carbon film electric resistors; consumer electronic products, namely, electric current sensing resistors, electrical inductors, electrical Chokes, electrical noise filters, fuses for electric current for overcurrent protection, electrical and multimedia interface cables and connectors, electrical terminal blocks
09 - Appareils et instruments scientifiques et électriques
Produits et services
Consumer electronic products, namely, power transformers, electric power converters, switching power supplies, DC-DC converters, external power adapters, electrical converters, thermal electrical converters, electric circuit switches, electric current control devices, electrical connectors, electrical connector cables, electrical interconnect connectors, electrical interconnect cables, electrical power connectors, electrical power cables, electrical power extension cords and cables, USB cables, USB connectors, modular electrical thermal connector, connection and terminal blocks and electrical strip blocks, diodes, Passive heat sinks for use in board level electrical systems and board level power components; consumer electronic products, namely, thermal management systems for electrical components and for electric systems, comprised primarily of Heat Sinks for use in electronic components, and also including Peltier devices in the nature of cooling and heating apparatus, Thermal Electric Modules, Thermal Substrate, and battery holders and cases; consumer electronic products, namely, oscillators; consumer electronic products, namely, sensors for electrical equipment comprised of thermal, motion, pressure, and photosensitive sensors and Liquid and Spatial Level, proximity, and flow sensors; electrical current resistors comprised of thermistors, varistors, and photo and light dependent, surface mount, and carbon film electric resistors; consumer electronic products, namely, electric current sensing resistors, electrical inductors, electrical Chokes, electrical noise filters, fuses for electric current for overcurrent protection, electrical and multimedia interface cables and connectors, electrical terminal blocks
5.
Dual slotted bobbin magnetic component with two-legged core
A magnetic component for an electronic circuit includes first and second bobbins having respective core-receiving passageways. Each bobbin includes multiple slots with a winding insert in each slot. The winding inserts function as windings as well as guides for winding a coil of wire around the respective bobbins. The first and second bobbins are positioned on respective first and second legs of a magnetic core. The coils of wire are wound on the two bobbins in opposite directions such that the magnetic fluxes provided by the coils are in phase. The winding inserts have connection prongs that can be positioned in opposite direction such that the winding inserts of the first bobbin are connectable to a first printed circuit board and the winding inserts of the second bobbin are connectable to a second printed circuit board.
H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants
H01F 41/063 - Enroulement de feuilles ou de fils conducteurs plats avec isolation
6.
Power converter transformer module with PCBS carrying secondary-side rectifier components
A power converter includes a power transformer having a body housing two secondary windings, the body having first and second opposing and substantially parallel planar faces, each of the secondary windings having respective first coils and second coils having respective terminals. The terminals of the first coils extend through the first face of the transformer body, and the terminals of the second coils extend through the second face of the transformer body. The converter further includes two printed circuit boards (PCBs) each disposed at a corresponding face of the transformer body, each PCB carrying switches and capacitors of a respective rectifier circuit connected to the terminals of the coils of the respective secondary winding, each PCB including external connections for connecting the rectifier circuits in parallel to form an output of the power converter.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Electrical plugs; jacks, namely, jack cables, jack
connectors, jack plugs, jack sockets or electrical
connectors; electric cables; cable assemblies, namely,
electric cables; cable couplers, namely, cable connectors;
magnetics, namely, magnets; connectors, namely, electrical
connectors; transformers; electronic circuits; electric
converters; fuses; electric fuse boxes; electronic
components for computers; electrical controllers; power
conversion and power management solutions, namely,
front-end, board-mount and industrial power products and
modules, namely, AC-DC, DC-DC converters, DC-AC inverters,
circuit protection converters, converters for e-mobility,
load controllers, namely, digital power controllers,
electric fuse boxes, electrical controllers, circuit
protection radial fuses, standard glass and ceramic
cartridge fuses, positive temperature coefficient devices in
the nature of resettable fuses, battery chargers.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Electrical plugs; jacks, namely, jack cables, jack
connectors, jack plugs, jack sockets or electrical
connectors; electric cables; cable assemblies, namely,
electric cables; cable couplers, namely, cable connectors;
magnetics, namely, magnets; connectors, namely, electrical
connectors; transformers; electronic circuits; electric
converters; fuses; electric fuse boxes; electronic
components for computers; electrical controllers; power
conversion and power management solutions, namely,
front-end, board-mount and industrial power products and
modules, namely, AC-DC, DC-DC converters, DC-AC inverters,
circuit protection converters, converters for e-mobility,
load controllers, namely, digital power controllers,
electric fuse boxes, electrical controllers, circuit
protection radial fuses, standard glass and ceramic
cartridge fuses, positive temperature coefficient devices in
the nature of resettable fuses, battery chargers.
The cable assembly includes a first wire assembly. The first wire assembly is connected to a first connector and a second connector. The first connector includes a shell and the shell includes an extension. The extension extends away from the rear of the connector. In one embodiment, the extension is integral with the shell. The extension includes one or more openings. The first wire assembly is bent in a controlled manner at first bend. The first opening in the extension maintains the first wire assembly in the bent position to maintain control of the radius in first bend. The radius is controlled to allow the first wire assembly to fit in a small space.
H01R 13/6592 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs l'organe conducteur étant un câble blindé
H01R 13/518 - Moyens pour maintenir ou envelopper un corps isolant, p. ex. boîtier pour maintenir ou envelopper plusieurs pièces de couplage, p. ex. châssis
H01R 13/6582 - Structure du blindage avec des moyens élastiques destinés à venir en contact avec le connecteur correspondant
H01R 13/6588 - Matériau de blindage entourant individuellement des contacts espacés les uns des autres ou interposé entre ces derniers à ouvertures débouchantes pour contacts individuels
H01R 13/58 - Moyens pour atténuer l'effort de tension sur le câble de connexion, p. ex. serre-câble
H01R 13/6591 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs
H01R 13/56 - Moyens pour empêcher l'usure ou la fracture des conducteurs flexibles de sortie contre les pièces de couplage
H01R 24/56 - Dispositifs de couplage en deux pièces, ou l'une des pièces qui coopèrent dans ces dispositifs, caractérisés par leur structure générale ayant des contacts disposés concentriquement ou coaxialement spécialement adaptés à la haute fréquence spécialement adaptés à la forme spécifique des câbles, p. ex. câbles ondulés, câbles à paires torsadées, câbles double blindage ou câbles creux
H01R 13/621 - Boulon, vis de serrage ou attache à vis
H01R 13/658 - Dispositions pour le blindage en haute fréquence, p. ex. protection contre les parasites électromagnétiques ou les impulsions électromagnétiques
H01R 11/32 - Pièces d'extrémité comportant plusieurs terminaisons
H01R 13/516 - Moyens pour maintenir ou envelopper un corps isolant, p. ex. boîtier
H01R 12/77 - Dispositifs de couplage pour circuits imprimés flexibles, câbles plats ou à rubans ou structures similaires
H01R 13/6593 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs l'organe conducteur étant un câble blindé le blindage étant composé de différentes pièces
H02G 3/00 - Installations de câbles ou de lignes électriques ou de leurs tubes de protection dans ou sur des immeubles, des structures équivalentes ou des véhicules
H01R 13/639 - Moyens additionnels pour maintenir ou verrouiller les pièces de couplage entre elles après l'engagement
H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
10.
Cable system having shielding layers to reduce and or eliminate EMI leakage
The cable attaches a first component and a second component using a quick disconnect connector pair. The cable includes a twisted pair of wires with a separate shield. A portion of the shielding near the connector is removed to expose the wires and assemble the wires to the connector. To reduce the EMI leakage, the inner shell encloses the exposed portions of the wires. In order to maintain the ground path for the shielding of the shielded twisted wire pairs, the shielding for the twisted wire pairs is connected to the shell. The outer shells facilitate the quick disconnect feature. The outer shell includes one or more slots. The slot allows a portion of the outer shell to become a cantilever beam. The beam deflects during disengagement and engagement with the outer shell.
H01R 13/6592 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs l'organe conducteur étant un câble blindé
H01B 11/10 - Écrans particuliers pour réduire les perturbations provoquées par des sources extérieures
H01R 9/05 - Dispositifs de connexion conçus pour assurer le contact avec plusieurs des conducteurs d'un câble multiconducteur pour câbles coaxiaux
A DC-DC converter suitable for conversion of high input voltages to regulated low output voltages at very high output currents has a cascade of stages including a buck regulation stage, an unregulated switched capacitor voltage doubler, and an unregulated voltage isolation stage. These three stages are merged in a single switching structure so that each stage optimally performs its respective function while also taking advantage of characteristics and features of neighboring stages.
H02M 3/07 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des résistances ou des capacités, p. ex. diviseur de tension utilisant des capacités chargées et déchargées alternativement par des dispositifs à semi-conducteurs avec électrode de commande
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/00 - Détails d'appareils pour transformation
The cable may attach a first component and a second component using a quick disconnect connector pair. The cable may include a twisted pair of wires with a separate shield. A portion of the shielding near the connector may be removed to expose the wires and assemble the wires to the connector. To reduce the EMI leakage, the inner shell encloses the exposed portions of the wires. In order to maintain the ground path for the shielding of the shielded twisted wire pairs, the shielding for the twisted wire pairs is connected to the shell. The outer shells facilitate the quick disconnect feature. The outer shell includes one or more slots. The slot allows a portion of the outer shell to become a cantilever beam. The beam deflects during disengagement and engagement with the outer shell.
H01R 13/6592 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs l'organe conducteur étant un câble blindé
The cable attaches a first component and a second component using a quick disconnect connector pair. The cable includes a twisted pair of wires with a separate shield. A portion of the shielding near the connector is removed to expose the wires and assemble the wires to the connector. To reduce the EMI leakage, the inner shell encloses the exposed portions of the wires. In order to maintain the ground path for the shielding of the shielded twisted wire pairs, the shielding for the twisted wire pairs is connected to the shell. The outer shells facilitate the quick disconnect feature. The outer shell includes one or more slots. The slot allows a portion of the outer shell to become a cantilever beam. The beam deflects during disengagement and engagement with the outer shell.
H01R 13/6592 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs l'organe conducteur étant un câble blindé
H01B 11/10 - Écrans particuliers pour réduire les perturbations provoquées par des sources extérieures
H01R 9/05 - Dispositifs de connexion conçus pour assurer le contact avec plusieurs des conducteurs d'un câble multiconducteur pour câbles coaxiaux
An isolation transformer includes a transformer core. First and second through-bores extend through the transformer core from a first surface to a second surface. Each through-bore has an elongated profile with at least a portion of the elongated profile providing a respective flat winding surface. The flat winding surfaces are spaced apart by a central portion of the transformer core. The transformer is wound with a six-wire cable having a central non-conductive core. First, second, third, fourth, fifth and sixth conductive wires are positioned around and adjacent to the central non-conductive core in a substantially equally spaced angular relationship. The second conductive wire is positioned between the first conductive wire and the third conductive wire; and the fifth conductive wire is positioned between the fourth conductive wire and the sixth conductive wire. The conductive wires are twisted about the central non-conductive core at a selected twist density.
A power switching device is provided with an integrated current sensor. The device includes component housing and multiple terminal legs extending therefrom. A current sensor assembly includes an interior cavity having a galvanically insulating tubular sleeve extending therethrough. A toroidal inductive winding resides within the first cavity and is circumferentially disposed about the sleeve, with one leg of the device defining a (single-turn) primary winding and the winding defining a secondary winding magnetically coupled to the device leg. Current sensing terminals are associated with respective locations along the inductive winding, wherein a current through the encapsulated terminal leg is detectable via respective current sensing leads extending from the assembly housing. A damping inductive element such as a ferrite bead may be provided within a second interior cavity defined by the assembly housing to suppress high frequency oscillations associated with a second (e.g., gate) terminal leg of the switching device.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
BEI FUSE (MACAO COMMERCIAL OFFSHORE) LIMITED (Macao)
Inventeur(s)
Marowsky, Richard, D.
Gutter, David, Henry
Belopolsky, Yakov
Jennifer, Allison, L.
Ellis, Mark
Abrégé
A modular RJ45-type plug apparatus is provided for forming a connector interface with a connector jack in a high speed data transmission network. A housing comprises an insulative front portion (107) and a conductive shield portion (106) attachable to define an interior, within which is positioned a contact subassembly (108) including a first PCB (110) having cable mounting pads on one end and through holes for elongate plug contacts (130) on the other end. The contacts are connected on one end to the first PCB and on a second end to a second PCB, with bridge portions there between collectively defining a jack contact interface. The second PCB comprises desired electrical characteristics which provide the apparatus with certain capacitance compensation properties, wherein the capacitance compensation is offset from a signal path defined between the jack-plug connector interface and the cable pairs (170).
A modular RJ45-type plug apparatus is provided for forming a connector interface with a connector jack in a high speed data transmission network. A housing comprises an insulative front portion and a conductive shield portion attachable to define an interior, within which is positioned a contact subassembly including a first PCB having cable mounting pads on one end and through holes for elongate plug contacts on the other end. The contacts are connected on one end to the first PCB and on a second end to a second PCB, with bridge portions therebetween collectively defining a jack contact interface. The second PCB comprises desired electrical characteristics which provide the apparatus with certain capacitance compensation properties, wherein the capacitance compensation is offset from a signal path defined between the jack-plug connector interface and the cable pairs.
H01R 24/64 - Engagements par glissement avec une face uniquement, p. ex. dispositifs de couplage à prise modulaire pour haute fréquence, p. ex. RJ 45
H01R 13/6469 - Moyens pour empêcher la diaphonie par croisement de conducteurs de signaux sur des substrats
H01R 13/506 - SoclesBoîtiers composés de différentes pièces assemblées par enclenchement réciproque des pièces
H01R 13/6587 - Matériau de blindage entourant individuellement des contacts espacés les uns des autres ou interposé entre ces derniers pour séparer des modules de connecteurs multibroches pour montage sur des cartes de circuits imprimés
H01R 13/514 - SoclesBoîtiers formés comme un bloc ou un assemblage modulaire, c.-à-d. composés de parties coopérantes pourvues de pièces de contact ou maintenant entre elles des pièces de contact
H01R 13/6466 - Moyens pour empêcher la diaphonie en ajoutant des éléments capacitifs sur des substrats, p. ex. des cartes de circuits imprimés
H01R 13/66 - Association structurelle avec des composants électriques incorporés
H01R 13/6585 - Matériau de blindage entourant individuellement des contacts espacés les uns des autres ou interposé entre ces derniers
A modular jack connector compensates for plug characteristics via a controlled primary compensation in the immediate vicinity of the connector interface. A jack contact assembly is positioned within a jack housing and includes first and second sets of elongate contacts each having a plug contact portion and a signal output portion. Each elongate contact is configured such that their respective plug contact portions are coplanar and a signal path is defined between their plug contact portions and their signal output portions. A flexible circuit board is coupled proximate to the plug contact portions, and configured to provide capacitance compensation between respective contacts engaged thereby, wherein the capacitance compensation is offset from a signal path defined between the plug contact portions and the corresponding signal output portions.
H01R 13/6477 - Adaptation d'impédance par variation des propriétés diélectriques
H01R 13/6594 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs le blindage étant monté sur une carte de circuits imprimés et raccordé à des organes conducteurs
A circuit and method are provided for recuperating energy and decreasing driver power consumption in a switching converter. An inductor is directly connected between a gate driver and a gate electrode of a switch. A first burst pulse signal is generated, wherein energy from a power source is stored in the inductor and transferred to a parasitic capacitance of the switch. A driving pulse signal is subsequently generated to the gate electrode of the switch, wherein the gate voltage is equal to the supply voltage and no balancing current flows through the inductor. After the driving pulse signal is terminated a second burst pulse signal is generated, wherein energy is accumulated in the inductive element and returned to the power source. The energy provided from the power source during the first burst pulse signal is equal to the energy returned to the power source during the second burst pulse signal.
H03K 17/0412 - Modifications pour accélérer la commutation sans réaction du circuit de sortie vers le circuit de commande par des dispositions prises dans le circuit de commande
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H03K 17/082 - Modifications pour protéger le circuit de commutation contre la surintensité ou la surtension par réaction du circuit de sortie vers le circuit de commande
H03K 17/691 - Commutation ou ouverture de porte électronique, c.-à-d. par d'autres moyens que la fermeture et l'ouverture de contacts caractérisée par l'utilisation de composants spécifiés par l'utilisation, comme éléments actifs, de dispositifs à semi-conducteurs les dispositifs étant des transistors à effet de champ avec une isolation galvanique entre le circuit de commande et le circuit de sortie utilisant un couplage par transformateur
H02M 3/07 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des résistances ou des capacités, p. ex. diviseur de tension utilisant des capacités chargées et déchargées alternativement par des dispositifs à semi-conducteurs avec électrode de commande
H03K 17/12 - Modifications pour augmenter le courant commuté maximal admissible
H03K 17/16 - Modifications pour éliminer les tensions ou courants parasites
H03K 3/012 - Modifications du générateur pour améliorer le temps de réponse ou pour diminuer la consommation d'énergie
H03K 17/06 - Modifications pour assurer un état complètement conducteur
21.
Technologies for simultaneous engagement of electrical connectors
This disclosure discloses a technology that enables a first set of electrical connectors hosted via a first carrier board to simultaneously engage with a second set of electrical connectors hosted via a second carrier board. This simultaneous engagement occurs based on a movement of the first carrier board toward the second carrier board, or vice versa, such that the first set of electrical connectors progressively engages and aligns with the second set of electrical connectors to enable signal communication therethrough. The movement of the first carrier board toward the second carrier board can be facilitated via a fastener.
H01R 13/62 - Moyens pour faciliter l'engagement ou la séparation des pièces de couplage ou pour les maintenir engagées
H01R 25/00 - Pièces de couplage adaptées à la coopération simultanée avec plusieurs pièces complémentaires identiques, p. ex. pour la distribution d'énergie à plusieurs circuits
H01R 13/518 - Moyens pour maintenir ou envelopper un corps isolant, p. ex. boîtier pour maintenir ou envelopper plusieurs pièces de couplage, p. ex. châssis
H01R 13/621 - Boulon, vis de serrage ou attache à vis
H01R 43/26 - Appareils ou procédés spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation de connecteurs de lignes ou de collecteurs de courant ou pour relier les conducteurs électriques pour engager ou séparer les deux pièces d'un dispositif de couplage
H01R 13/631 - Moyens additionnels pour faciliter l'engagement ou la séparation des pièces de couplage, p. ex. moyens pour aligner ou guider, leviers, pression de gaz pour l'engagement uniquement
H01R 24/52 - Dispositifs de couplage en deux pièces, ou l'une des pièces qui coopèrent dans ces dispositifs, caractérisés par leur structure générale ayant des contacts disposés concentriquement ou coaxialement spécialement adaptés à la haute fréquence montés dans ou sur un panneau ou une structure
A DC power supply includes a point-of-load (PoL) regulator providing power to a load with a desired efficiency only when a PoL input voltage is in a first sub-range of a specified larger system input voltage range. The supply has an auxiliary circuit with an output in series with the supply input, generating an auxiliary voltage and adding it to the DC supply voltage to form a boosted supply voltage. Switching circuitry connects the supply input to the PoL input to apply a DC supply voltage as the PoL input voltage when the supply voltage is in the first sub-range, and connects the output of the auxiliary circuit to the PoL input to apply the boosted supply voltage as the PoL input voltage when the supply voltage is outside the first sub-range, maintaining the PoL input voltage within the first sub-range.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02M 1/00 - Détails d'appareils pour transformation
24.
Distributed planar inductor with multi-2D geometry for energy storage
A distributed planar inductor is provided with energy storage components featuring high energy storage density, multilayer winding and low copper losses. The inductor includes a magnetic core with a plurality of vertically oriented posts, a plurality of horizontally oriented plates coupled to define an interior, and a conductive winding extending through the interior. The vertical posts each include a plurality of energy storage elements coplanar in orientation with respect to the winding and having a substantially two dimensional structure. The conductive winding may comprise co-planar winding tracks extending through the interior, for example vertically coupled in parallel. A set of co-planar winding tracks may correspond to respective layers in a multilayer printed circuit board, and for example may comprise printed circuit board tracks vertically interconnected by vias extending there-through.
H01F 27/34 - Moyens particuliers pour éviter ou réduire les effets électriques ou magnétiques indésirables, p. ex. pertes à vide, courants réactifs, harmoniques, oscillations, champs de fuite
A DC/DC converter is provided for operation within a narrow voltage range during normal conditions, while allowing for a wider input voltage range for short periods of time. A first switch is coupled across first and second input terminals, and a capacitor is coupled in parallel with the first switch and across the input terminals. A second switch is coupled in series with the first input terminal and between the first switch and the capacitor. Operation of the switches is regulated in accordance with a bypass mode of operation when received input power is within a defined range, and a boost mode of operation when received input power is less than a threshold value, wherein the received input power is boosted to a bulk output power within the defined range. Boost operations may in various embodiments be provided via, for example, a critical conduction scheme or continuous conduction scheme.
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
H02M 1/00 - Détails d'appareils pour transformation
26.
High current busbar system for low-profile power shelves
A power distribution system includes a server rack comprising a vertically stacked plurality of power shelf assemblies. Each assembly has first and second opposing sides defining vertical planes, and third and fourth opposing sides extending between the first and second sides. For each assembly, a first bus bar extends along a horizontal plane between the third and fourth sides, a second bus bar extends along the horizontal plane between the first bus bar and the first side of the assembly, a first set of power supply pins extends along the horizontal plane from the first bus bar toward the second side of the assembly, and a second set of power supply pins extends along the horizontal plane from the second bus bar toward the second side of the assembly, wherein the second set of power supply pins further protrude through respective apertures in the first bus bar.
H02B 1/20 - Schémas de barres omnibus ou d'autres fileries, p. ex. dans des armoires, dans les stations de commutation
H01R 25/14 - Rails ou barres omnibus réalisés de telle sorte que les pièces complémentaires puissent leur être connectées en tout point de leur longueur
H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
G06F 1/18 - Installation ou distribution d'énergie
The device includes a body and a plurality of contact portions. The body is substantially planar. The plurality of contact portions are associated with the body so as to form ports. The plurality of contact portions are in electrical communication with the body. The port of each contact portion having an inside diameter substantially equal to ID1. The body and the contact portions are constructed of a conductive metallic material.
H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques
H01R 13/03 - Contacts caractérisés par le matériau, p. ex. matériaux de plaquage ou de revêtement
H01R 13/6594 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs le blindage étant monté sur une carte de circuits imprimés et raccordé à des organes conducteurs
H01R 24/50 - Dispositifs de couplage en deux pièces, ou l'une des pièces qui coopèrent dans ces dispositifs, caractérisés par leur structure générale ayant des contacts disposés concentriquement ou coaxialement spécialement adaptés à la haute fréquence montés sur une PCB [carte de circuits imprimés]
H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés
An isolation transformer includes a transformer core (300). First and second through-bores (340, 342) extend through the transformer core from a first surface to a second surface. Each through-bore has an elongated profile with at least a portion of the elongated profile providing a respective flat winding surface. The flat winding surfaces are spaced apart by a central portion of the transformer core. The transformer is wound with a six-wire cable having a central non-conductive core. First, second, third, fourth, fifth and sixth conductive wires are positioned around and adjacent to the central non-conductive core in a substantially equally spaced angular relationship. The second conductive wire is positioned between the first conductive wire and the third conductive wire; and the fifth conductive wire is positioned between the fourth conductive wire and the sixth conductive wire. The conductive wires are twisted about the central non-conductive core at a selected twist density.
An isolation transformer includes a transformer core. First and second through-bores extend through the transformer core from a first surface to a second surface. Each through-bore has an elongated profile with at least a portion of the elongated profile providing a respective flat winding surface. The flat winding surfaces are spaced apart by a central portion of the transformer core. The transformer is wound with a six-wire cable having a central non-conductive core. First, second, third, fourth, fifth and sixth conductive wires are positioned around and adjacent to the central non-conductive core in a substantially equally spaced angular relationship. The second conductive wire is positioned between the first conductive wire and the third conductive wire; and the fifth conductive wire is positioned between the fourth conductive wire and the sixth conductive wire. The conductive wires are twisted about the central non-conductive core at a selected twist density.
A modular jack connector compensates for plug characteristics via a controlled primary compensation in the immediate vicinity of the connector interface. A jack contact assembly is positioned within a jack housing and includes first and second sets of elongate contacts each having a plug contact portion and a signal output portion. Each elongate contact is configured such that their respective plug contact portions are coplanar and a signal path is defined between their plug contact portions and their signal output portions. A flexible circuit board is coupled proximate to the plug contact portions, and configured to provide capacitance compensation between respective contacts engaged thereby, wherein the capacitance compensation is offset from a signal path defined between the plug contact portions and the corresponding signal output portions.
H01R 13/6469 - Moyens pour empêcher la diaphonie par croisement de conducteurs de signaux sur des substrats
H01R 24/64 - Engagements par glissement avec une face uniquement, p. ex. dispositifs de couplage à prise modulaire pour haute fréquence, p. ex. RJ 45
H01R 13/6594 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs le blindage étant monté sur une carte de circuits imprimés et raccordé à des organes conducteurs
A power converter is provided with a totem-pole power factor correction (PFC) circuit for bridgeless line rectification, and current sensing circuit that can be selectively disabled to reduce unwanted current sense signal components and undesirable current transformer voltage stresses. The totem-pole PFC has at least a first leg with first and second switching elements coupled in series. A PFC inductor is coupled between an AC input on a first end and a node between the switching elements. The current sensing circuit includes a first transformer winding coupled in series with the first switching element, a second transformer winding magnetically coupled to the first winding and configured to deliver current from the first winding to a current sense terminal during an active phase for the first switching element, and a shunt circuit configured to disable the current sensing circuit during a freewheeling phase for the first switching element.
H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
H02M 1/00 - Détails d'appareils pour transformation
33.
Method to operate a resonant converter at a characteristic frequency of the power stage
A method is provided of operating a resonant converter, the converter having a controller and power stage and providing an output voltage, by determining a characteristic frequency of the power stage. The characteristic frequency is defined as a natural oscillation frequency of the power stage observed right after the power stage control signals from the controller are disabled. The converter is operated at the characteristic frequency during ramp-up or ramp-down of the converter output voltage and/or during overload or input overvoltage conditions.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
34.
Modular connector plug for high speed data transmission networks
A modular connector plug includes controlled capacitances to compensate for near end cross talk at the connector interface created by interaction of signals having signal frequencies in a data transmission bandwidth. A printed circuit board (PCB) is configured to receive cable pairs, and a connector assembly includes first and fourth plug contacts corresponding to the first cable pair and second and third plug contacts corresponding to the second cable pair. First ends of each contact are connected to the PCB, and second ends extend in parallel with each other and transversely to the PCB length, collectively defining a contact interface proximate the contact end. Each contact has a maximum width at the contact interface, with at least one plug contact having a maximum width greater than the maximum width of another plug contact. Each contact accordingly defines an electrode of a compensating capacitance formed between adjacent pairs of plug contacts.
A power switch includes a bridge-connected switching circuit with (1) a pair of MOSFETs back-to-back in series between line and load connections, an interconnection point of the MOSFETs being a first common connection, and (2) a pair of diodes back-to-back between the line and load connections, an interconnection point of the diodes being a second common connection. A line/load controller has supply inputs connected to the first and second common connections for receiving operating power, and (1) places both MOSFETs in the ON state to deliver normal operating current to the load for normal operation, and (2) places both MOSFETs in the OFF state to deliver (by body diode conduction) a substantially reduced leakage current to the load when the load is not powered for normal operation, the leakage current providing the operating power to the line/load controller.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
A filter inductor for high-current applications. The filter inductor includes a magnetic core and a winding. The winding includes a shaped section having opposing ends, a pair of arm sections laterally extending from the opposing ends of the shaped section, respectively, and a pair of inductor pins, each extending perpendicular from an end of a respective arm section. The magnetic core includes a first core portion and a second core portion. The first core portion includes a recessed channel configured to receive the shaped section of the winding. The second core portion includes a pair of recessed regions configured to receive the pair of arm sections of the winding, respectively. The first core portion and the second core portion are coupled in contact to one another to secure the shaped section of the winding within the magnetic core. The filter inductor can be edge-mounted to a printed circuit board.
H01F 41/10 - Raccord des connexions aux enroulements
H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants
H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés
H01F 17/04 - Inductances fixes du type pour signaux avec noyau magnétique
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
37.
High current busbar system for low-profile power shelves
A low profile (1U) power distribution system includes a power shelf assembly having a first side and an opposing second side. First and second bus bars extend across the assembly and substantially in parallel with the first and second sides, the second bar positioned behind the first bar. One row of power supply pins extends from the bars to engage power supply units within the assembly. A first set of pins extends from the first bus, while a second set extends from the second bar and protruding through respective apertures in the first bar. An insulating material may be provided to electrically insulate power supply pins of the second bar from the first bar. The reduced height profile of the bars allows for cooling air to pass through the remaining >50% of the assembly, which may now desirably include additional electrical circuits within the cooling channel.
H01R 25/14 - Rails ou barres omnibus réalisés de telle sorte que les pièces complémentaires puissent leur être connectées en tout point de leur longueur
H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
G06F 1/18 - Installation ou distribution d'énergie
38.
Switching power supply startup circuit with normally on device providing startup charging current
A power converter startup circuit establishes an operating voltage for control circuitry during startup and is then disabled to reduce no-load power dissipation. The startup circuit has a normally on characteristic to automatically provide startup charging current for a startup capacitor. The control circuitry begins operating as the startup capacitor voltage reaches an operating value, and it generates an inhibitory signal that disables the startup circuit to stop the startup charging current and reduce power dissipation. The normally on characteristic is achieved by an emitter switched current source employing a normally on device such as a depletion-mode J-FET. A resistor divider network provides both biasing for the startup current source and a point of monitoring the power supply input voltage during steady state operation. A charge pump provides a voltage of the inhibitory control signal sufficiently above the auxiliary voltage to turn off the normally on switching transistor.
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02M 3/24 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques
H02M 1/00 - Détails d'appareils pour transformation
A modular jack connector (100) compensates for plug characteristics via a controlled primary compensation in the immediate vicinity of the connector interface. A jack contact assembly (101) is positioned within a jack housing (104) and includes first and second sets of elongate contacts each having a plug contact portion and a signal output portion. Each elongate contact is configured such that their respective plug contact portions are coplanar and a signal path is defined between their plug contact portions and their signal output portions. A flexible circuit board is coupled proximate to the plug contact portions, and configured to provide capacitance compensation between respective contacts engaged thereby, wherein the capacitance compensation is offset from a signal path defined between the plug contact portions and the corresponding signal output portions.
A dense and efficient output stage for a DC/DC converter includes center tapped secondary windings of a transformer having an offset core with respect to a PCB, two pairs of synchronous rectifiers configured to define two pairs of paralleled symmetrical AC loops respective to the secondary windings, and at least two bus bars disposed within a forced cooling airstream to act as heat sinks for the synchronous rectifiers, while further providing a filtering impedance between the transformer windings and an output capacitance. A split capacitance is disposed in close proximity with the synchronous rectifiers to filter out ripple current, in one embodiment characterized by first and second capacitors each respectively coupled between opposing ends of the first and second bus bars, wherein the bus bars are arranged about at least three sides of the transformer core.
H02M 7/217 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
A power inductor includes a core and winding. The winding has at least two portions, one made of pure copper and the other made of a low-TCR (temperature coefficient of resistance) alloy, wherein the alloy portion is used to form a current sensor. The two portions are joined to provide a unitary winding. The inductor can provide accurate current detection sensor while minimizing total resistance of the winding.
H01B 1/02 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisésEmploi de matériaux spécifiés comme conducteurs composés principalement de métaux ou d'alliages
44.
MODULAR CONNECTOR PLUG FOR HIGH SPEED DATA TRANSMISSION NETWORKS
A modular connector plug (100) includes controlled capacitances to compensate for near end cross talk at the connector interface created by interaction of signals having signal frequencies in a data transmission bandwidth. A PCB (102) is configured to receive cable pairs (114, 116, 118, 120), and a connector assembly (122) includes first and fourth plug contacts corresponding to the first cable pair and second and third plug contacts corresponding to the second cable pair. First ends of each contact are connected to the PCB, and second ends extend in parallel with each other and in transverse orientation with respect to the PCB length, collectively defining a contact interface proximate the contact end. An insulative material at least partially covers plug contacts, wherein respective compensating capacitances are defined proximate the contact interface by the insulative material as between at least the first and second contacts, and the third and fourth contacts.
A resonant DC/DC power converter is provided with isolated primary and secondary circuits. The primary circuit includes at least four switches as first and second pairs in a bridge configuration, an isolation transformer having at least one primary and at least one secondary winding, and a resonant tank including a resonant capacitor and a split resonant inductor having two separate windings. In one embodiment, the split resonant inductor windings are substantially identical. Synchronous switching of diagonally opposed switch pairs in the bridge configuration thereby produces a center point voltage of the primary transformer winding is substantially free of stepwise voltage changes.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
A power over Ethernet (PoE) interface for 10GBase-T Ethernet includes at least one communication channel Ethernet interface including an autotransformer having a center tap for coupling direct current (DC) power. A combination of the geometry of the toroid core of the autotransformer and in some embodiments of a common mode choke, as well as the wire twisting, the wire distribution and the wire routing allow maximizing bandwidth up to or greater than 500 MHz for 10GBase-T performance by increasing the coupling and reducing capacitance across the wires, and results in return and insertion losses and OCL that meet anticipated standards.
A power supply includes power circuitry configured to provide DC power to a separate load, and wireless communication circuitry for wirelessly communicating with an external control device such as a smart phone. A controller is configured to (1) conduct communications with the external control device via the wireless communication circuitry to receive configuration parameters, and (2) incorporate the configuration parameters into a control scheme for operation of the power supply. The power supply may be used with an LED lamp including a series of LEDs, and the configuration parameters establish desired operating characteristics including selection of constant-current or constant-voltage operation, and/or parameters for a dimming curve applied in dimming operation of the LED lamp. The power supply may be used in other applications including battery charging applications.
A power over Ethernet (PoE) interface for 10GBase-T Ethernet includes at least one communication channel Ethernet interface including an autotransformer having a center tap for coupling direct current (DC) power. A combination of the geometry of the toroid core of the autotransformer and in some embodiments of a common mode choke, as well as the wire twisting, the wire distribution and the wire routing allow maximizing bandwidth up to or greater than 500 MHz for 10GBase-T performance by increasing the coupling and reducing capacitance across the wires, and results in return and insertion losses and OCL that meet anticipated standards.
A network interface connector includes a plurality of first and second alternating elongate contacts having contact portions situated in a common plane. The first and second contacts have rearward portions situated in respective first and second spaced parallel planes defining a proximity gap between them. A proximity insert having a particular electrical construction suited for a particular application is situated, preferably in a replaceable manner, in the proximity gap to provide the connector with desired transmission properties.
The electrical connector or device includes a first center contact, a first outer conductor, a first insulation material, a second center contact, a second outer conductor, a second insulation material, a spring, and a flexible wire. The first center contact has a longitudinal axis. The first insulation material is retained between the first center contact and the second outer conductor. The second center contact has a longitudinal axis. The second insulation material is retained between the second center contact and the second outer conductor. The longitudinal axis of the second center contact is substantially perpendicular to the longitudinal axis of the first center contact. The spring is in contact with the first outer conductor and the second outer conductor. The flexible wire is attached to the first center contact and the second center contact.
The device includes a body and a plurality of contact portions. The body is substantially planar. The plurality of contact portions are associated with the body so as to form ports. The plurality of contact portions are in electrical communication with the body. The port of each contact portion having an inside diameter substantially equal to ID1. The body and the contact portions are constructed of a conductive metallic material.
H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques
H01R 13/03 - Contacts caractérisés par le matériau, p. ex. matériaux de plaquage ou de revêtement
H01R 13/6594 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs le blindage étant monté sur une carte de circuits imprimés et raccordé à des organes conducteurs
H01R 24/50 - Dispositifs de couplage en deux pièces, ou l'une des pièces qui coopèrent dans ces dispositifs, caractérisés par leur structure générale ayant des contacts disposés concentriquement ou coaxialement spécialement adaptés à la haute fréquence montés sur une PCB [carte de circuits imprimés]
The device includes a body and a plurality of contact portions. The body is substantially planar. The plurality of contact portions are associated with the body so as to form ports. The plurality of contact portions are in electrical communication with the body. The port of each contact portion having an inside diameter substantially equal to ID1. The body and the contact portions are constructed of a conductive metallic material.
A power converter startup circuit establishes an operating voltage for control circuitry during startup and is then disabled to reduce no-load power dissipation. The startup circuit has a normally on characteristic to automatically provide startup charging current for a startup capacitor. The control circuitry begins operating as the startup capacitor voltage reaches an operating value, and it generates an inhibitory signal that disables the startup circuit to stop the startup charging current and reduce power dissipation. The normally on characteristic is achieved by an emitter switched current source employing a normally on device such as a depletion-mode J-FET. A resistor divider network provides both biasing for the startup current source and a point of monitoring the power supply input voltage during steady state operation.
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/00 - Détails d'appareils pour transformation
A transformer having a bobbinless winding assembly positioned on a base includes a primary winding having multiple radially-spiraling turns of a wire and a secondary winding including a substantially planar annular disk having a radial gap defined therein. A primary winding having first and second primary windings including multiple radially-spiraling turns of wire with free ends extending from outer turns and a method of forming the same is provided. A secondary winding having a planar annular disk with a radial gap defined therein and a method of forming the same is also provided.
A commutation current steering method is provided for a power converter having an isolation transformer, a plurality of primary ZVS switches, a plurality of secondary switches for synchronous rectification, and a boosting resonant circuit. A commutation current is shared between all of the switches, and a resonance is induced in the boosting resonant circuit by controlling each of the synchronous rectifier switches to turn off at a time prior to a turn-off time for a corresponding one of the switches operating under ZVS conditions, wherein the primary current is boosted above a minimum commutation value during ZVS periods. The ZVS switches are further driven with a constant dead time, and the synchronous rectifier switches are driven to provide a fixed time relation with respect to all of the switches.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/00 - Détails d'appareils pour transformation
09 - Appareils et instruments scientifiques et électriques
Produits et services
Interconnect products for Ethernet connectivity, namely, electronic connectors and cable assemblies for use with electrical, optical and signal transmission systems, premise wiring, passive jacks, and modular plugs
09 - Appareils et instruments scientifiques et électriques
Produits et services
Electronic components for the computer networking, telecommunications, transportation, defense and aerospace industries, namely, LAN, Ethernet and telecom magnetics and connectors, namely, plug connectors for computers, USB connectors, namely, USB cables, and magnetic connectors, namely, modular jack connectors, magnetic contacts, cable connectors; power conversion and power management solutions, namely, electric fuse boxes, electrical controllers, circuit protection radial fuses, standard glass and ceramic cartridge fuses; electronic connectors and cable assemblies, namely, cables for electrical and optical signal transmission systems; transformers
09 - Appareils et instruments scientifiques et électriques
Produits et services
Electronic components for the computer networking, telecommunications, transportation, defense and aerospace industries, namely, LAN, Ethernet and telecom magnetics and connectors, namely, plug connectors for computers, USB connectors, namely, USB cables, and magnetic connectors, namely, modular jack connectors, magnetic contacts, cable connectors; power conversion and power management solutions, namely, electric fuse boxes, electrical controllers, circuit protection radial fuses, standard glass and ceramic cartridge fuses; electronic connectors and cable assemblies, namely, cables for electrical and optical signal transmission systems; transformers
09 - Appareils et instruments scientifiques et électriques
Produits et services
LAN, Ethernet and telecom magnetics and connectors, namely, plug connectors for computers, USB connectors, namely, USB cables, and magnetic connectors, namely, modular jack connectors, magnetic contacts and cable connectors
09 - Appareils et instruments scientifiques et électriques
Produits et services
Power conversion and power management solutions, namely, front-end, board-mount and industrial power products and modules, namely, AC-DC, DC-DC converters, circuit protection converters, converters for e-mobility, load controllers, namely, digital power controllers
65.
Droop current sharing power converter with controlled transitions between regulation set points
A regulated switching power converter generates a converter output having first and second regulated output values under corresponding operating conditions. The converter output transitions between the first and second output values in response to transition of a trigger signal in a transition window between first and second trigger values. A transition step function is based on transition amplitude, transition interval and number of steps, the transition amplitude being a difference between the first and second regulated output values, and the transition interval being a difference between the first and second trigger values. The transition step function generates a step-like transition signal based on values of the trigger signal between the first and second trigger values. During operation in the transition window, the step-like transition signal is included in the regulation reference value to generate a step-like transition of the converter output between the first and second regulated output values.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
G06F 1/26 - Alimentation en énergie électrique, p. ex. régulation à cet effet
H02M 3/28 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire
H02J 1/10 - Fonctionnement de sources à courant continu en parallèle
H02M 1/00 - Détails d'appareils pour transformation
66.
Switch-mode power supply with temperature and current sharing
A switched-mode power supply in a set of parallel-connected switched-mode power supplies is operated to (1) monitor both output current and operating temperature, and (2) auto-tune an output voltage using two-dimensional control that employs a two-dimensional function of the output current and the operating temperature. The two-dimensional function is a sharing function whose use in each of the supplies effects a coordinated sharing of both load current and operating temperature across the set of supplies. Temperature sharing includes monitoring and controlling distribution of operating temperatures across the set of supplies to reduce undesirable temperature imbalance that can cause excessive thermal stress and reduce reliability.
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
H02M 3/156 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation
H02M 1/00 - Détails d'appareils pour transformation
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
67.
Power supply having selectable operation based on communications with load
A power supply includes signaling circuitry coupled to output terminals for engaging in bidirectional communications with a load. A controller is capable of conducting the bidirectional communications and selecting among different operating modes for the power supply based on the communications. The modes may include a constant-current mode suitable for applications such as battery charging and power LED lamps, and a constant-voltage mode suitable for a variety of conventional uses such as powering electronic circuitry. The signaling circuitry may include a power switching transistor in series with the load, which is pulsed in a binary fashion to transmit communications to the load. A signal-forming resistor in parallel with the power switching transistor develops a signaling voltage monitored by the controller to receive communications from the load.
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
68.
Anti-vibration fan control system and method for modular power supplies
System and methods are provided for reducing vibration in server or data storage units. An anti-vibration system according to the present invention includes one or more disk drives and one or more fans in a defined area, and a controller which is configured to control operation of each of the one or more fans. A nominal speed setting and a speed range are determined for the one or more fans, either commonly or independently with respect to each, and the fans are caused to be driven in accordance with the determined speed setting and speed range. As a result the occasions in which individual fan speeds are coincident with fixed frequency sensitivities for each disk drive are substantially minimized.
A multiphase DC-DC converter includes multiple groups of first and second LLC power trains coupled in parallel which collectively provide an output voltage to a load. A voltage feedback control loop senses an output voltage for the LLC converter and generates an identical reference current signal for each of the multiple groups of power trains, the signals representing a reference current based on the sensed output voltage, wherein an active current sharing operation is provided between each of the groups. A local current control loop for each of the groups generates PWM control signals to each of the respective first and second power trains based on the reference current, the PWM control signals having an identical frequency but out of phase with respect to each other, wherein a passive current sharing operation is provided within each of the plurality of power groups.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 3/28 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire
H02M 1/00 - Détails d'appareils pour transformation
The electrical connector includes a first block, a second block, a first support bead, a second support bead, and a wire. The first block includes a first groove and a first rib. The first block is metallized so as to conduct electricity. The second block includes a second groove and a second rib. The second block is metallized so as to conduct electricity. The first support bead does not conduct electricity. The second support bead does not conduct electricity. The wire conducts electricity. The first and second support beads support the wire. When the first rib of the first block is inserted into the second groove of the second block, then the first support bead, the second support bead, and the wire are retained between the first block and the second block.
The connector assembly may include a ratcheting feature which prevents the coupling nut from turning due to vibration or shock. The coupling nut may include an engagement surface. The engagement surface may be a series of peaks and valleys. The connector may include a spring washer. The spring washer may be located between the coupling nut and the connector body. The spring washer may include a protrusion. The protrusion engages the engagement surface. In a second embodiment, the coupling nut may include a spring pin. The connector body may include an engagement surface. The engagement surface may be a series of peaks and valleys. The spring pin engages the engagement surface. The spring pin may be made of multiple components, for example, a pin and a spring. In another embodiment, the spring pin may be a single component.
G02B 6/38 - Moyens de couplage mécaniques ayant des moyens d'assemblage fibre à fibre
H01R 13/639 - Moyens additionnels pour maintenir ou verrouiller les pièces de couplage entre elles après l'engagement
H01R 13/623 - Boîtier ou bague comportant une rainure hélicoïdale
F16B 39/24 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par rondelles, rondelles à ressort ou plaques élastiques qui bloquent contre l'objet
72.
Power converter with self-driven synchronous rectifier control circuitry
An AC-DC power converter is provided with two pairs of self-driven synchronous rectifier switches in addition to, or in place of, diode bridge rectifiers for boosting efficiency and reducing cost. An AC sensing circuit is coupled to AC input terminals, and a DC level shifting circuit applies a DC offset to an AC input signal received via the sensing circuit. A comparator circuit determines positive and negative half waves of the AC input signal relative to the DC offset value. Gate drive signals are provided for driving a first set of parallel rectifier switches during a positive half cycle of the AC input signal, and for driving a second and opposing pair of parallel rectifier switches during a negative half cycle of the AC input signal. In an embodiment, high side gate drive signals may be electrically isolated from the active rectifier control circuitry.
H02M 7/219 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs dans une configuration en pont
The connector assembly may include a ratcheting feature which prevents the coupling nut from turning due to vibration or shock. The coupling nut may include an engagement surface. The engagement surface may be a series of peaks and valleys. The connector may include a spring washer. The spring washer may be located between the coupling nut and the connector body. The spring washer may include a protrusion. The protrusion engages the engagement surface. In a second embodiment, the coupling nut may include a spring pin. The connector body may include an engagement surface. The engagement surface may be a series of peaks and valleys. The spring pin engages the engagement surface. The spring pin may be made of multiple components, for example, a pin and a spring. In another embodiment, the spring pin may be a single component.
A hybrid diode-less power converter topology of the present invention converts power from an AC power source to a variable load with high efficiency. The power converter includes a non-symmetrical arrangement of rectifying switches for rectifying an input AC voltage and shaping switches for shaping an input AC current. The shaping switches are operated in Continuous Conduction Mode (CCM) based on an input AC current. Operation of each of the rectifying switches and shaping switches are further controlled wherein a commutation time for the shaping switches is associated with a first voltage rise and fall time (e.g., less than 10 ns), and a commutation time for the rectifying switches is associated with a second voltage rise and fall time (e.g., at least 100 ns), wherein the first voltage rise and fall time is less than the second voltage rise and fall time by a factor of nine or more.
H02M 7/219 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs dans une configuration en pont
H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
75.
Slotted bobbin magnetic component devices and methods
A slotted bobbin magnetic component device includes a bobbin having an elongated bobbin tube with transverse slots. One or more substantially flat electrically conductive winding inserts are inserted radially onto the bobbin tube via the transverse slots. At least one detent positioned on the winding insert secures the winding insert on the bobbin and prevents the winding insert from becoming misplaced relative to the bobbin. One or more flanges protruding from the bobbin engage one or more corresponding recesses on the winding insert to prevent angular movement of the winding insert relative to the bobbin. One or more primary conductive winding coils are disposed about the bobbin in the gaps between adjacent winding inserts, the coils being formed by axially winding numerous layers over each other in alternating axial winding directions.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
H01F 5/02 - Bobines d'induction enroulées sur des supports non magnétiques, p. ex. mandrins
76.
Isolation system for a bi-directional communication bus line
A system and method are provided for bidirectional communications between a master device and one or more slave devices. Each slave device is coupled to first and second opto-isolators which are effective to provide galvanic isolation of the slave device from the master device. An encoder circuit is coupled between the master device and the first opto-isolators. A decoder circuit is coupled between the master device and the second opto-isolators. The master device generates transmissions to the slave devices along a first low logic path including the encoder and the first opto-isolators, wherein the decoder and the second opto-isolators are non-responsive to signals on the first path. The slave devices generate transmissions to the master device along a second low logic path including the second opto-isolators and the decoder, wherein the encoder and the first opto-isolators are non-responsive to signals on the second path.
A trimmable inductor assembly is provided for optimal balancing of phase currents in a multi-phase resonant converter. A magnetic device includes first and second core portions defining an outer edge of the device having a first axis, and further defining a first air gap. A bracket is positioned proximate the outer edge of the device and a magnetic plate is coupled to the bracket, with the magnetic plate and the second core portion defining a second air gap. A positioning device is coupled to the bracket and is responsive to control signals based on a detected phase current imbalance to drive the bracket and the magnetic plate between a first position defining a minimum air gap for the assembly and a second position defining a maximum air gap for the assembly.
A method of fabricating an optical connector. The connector may include a housing, a channel within the housing for receiving an end of an optical fiber, a ferrule, and an optical fiber stub. The connector also has a lens for projecting and/or receiving an expanded beam. A sleeve may surround the ferrule and presents an open end for receiving a termination ferrule of an optical fiber inserted into the channel. The ferrule may be secured by a ring within the channel.
A switch-mode modular power supply is provided with pluggable output connectors for improved safety and simplicity of installation. The power supply has a box-shaped housing with a first end and an opposing second end. A plurality of output modules are positioned proximate the second end of the housing, with each output module having an output connector with a connector housing and a plurality of pluggable contact terminals. The output connectors are arranged in parallel across the second end of the housing and accessible from outside of the housing. The pluggable contact terminals for each of the output connectors are effective to provide an output power from the associated output module.
A modular power supply and power control system includes a digital controller coupled to each of a plurality of output modules via a single wire serial data bus having a default high logic state. A plurality of isolation transformers are each coupled on a primary side to receive an intermediate bus voltage, and further coupled on a secondary side to one of the output modules. Galvanic isolation circuits provide galvanic isolation on the serial data bus between each of the output modules and the digital controller. The digital controller further includes circuitry effective to pull a bus logic state from high to low for generating data transmission to the plurality of isolated modules. Each of the plurality of isolated modules further include circuitry effective to independently pull the bus logic state from high to low for generating data transmission to the digital controller.
G05F 3/06 - Régulation de la tension ou du courant là où la tension ou le courant sont alternatifs en utilisant des combinaisons de dispositifs inducteurs saturés et non saturés, p. ex. combinés avec un circuit résonnant
81.
AC/DC power converter with active rectification and input current shaping
An AC/DC power converter has an AC input and a DC output, with an input rectifier circuit coupled to the AC input. The input rectifier circuit includes a passive half-bridge rectifier circuit functional to provide passive rectification of an AC input power sign and at least one current shaper circuit. The current shaper circuit includes an input inductor coupled between the AC input and a switch node in the input active rectifier circuit. The input current shaper circuit is functional to shape an AC input current signal associated with an AC input power signal to a substantially sinusoidal current signal. A bulk capacitor circuit is coupled to the input active rectifier circuit. A DC/AC converter circuit is coupled to the bulk capacitor circuit. A resonant circuit is coupled to the DC/AC converter circuit and an output rectifier circuit may be coupled between the resonant circuit and the DC output.
H02M 5/45 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases avec transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge ou des dispositifs à semi-conducteurs pour transformer le courant continu intermédiaire en courant alternatif utilisant des dispositifs du type thyratron ou thyristor exigeant des moyens d'extinction utilisant uniquement des dispositifs à semi-conducteurs
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
82.
System and method for zero volt switching of half bridge converters during startup and short circuit conditions
An open loop half-bridge power converter is provided for effective zero volt switching during all operating conditions, the converter including: an oscillating inverter circuit having a pair of switches coupled to a load circuit; an inverter drive circuit effective to provide driver signals to the inverter circuit; and a control circuit for providing control signals to the drive circuit. The control circuit is configured to increase a switching frequency of the switching devices in response to a predetermined condition such as startup or short circuit conditions. The inverter as a result continues to operate at a full duty cycle in response to the increased switching frequency, and zero volt switching is ensured throughout the duration of the predetermined condition.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02H 7/122 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour convertisseursCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour redresseurs pour convertisseurs ou redresseurs statiques pour onduleurs, c.-à-d. convertisseurs de courant continu en courant alternatif
83.
DC-to-DC converter having secondary-side digital sensing and control
A DC/DC converter for use in power supply applications employing multiple parallel-connected converters employs a digital controller referenced to the secondary or output side of an isolation boundary and having non-isolated direct connections to secondary side components. The controller directly monitors output voltage and output current and uses feedback control techniques to precisely control these values in a desired manner. The DC/DC converter can implement so-called “droop” current sharing with increased accuracy arising from the secondary-side digital control, so that a desired balanced sharing of current across multiple converters can be achieved. The converter uses calibration establish accurate set points, and any of a variety of additional functions/features to attain operational goals.
G05F 1/575 - Régulation de la tension ou de l'intensité là où la variable effectivement régulée par le dispositif de réglage final est du type continu utilisant des dispositifs à semi-conducteurs en série avec la charge comme dispositifs de réglage final caractérisé par le circuit de rétroaction
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
84.
Circuit for controlling synchronous rectifiers during start-up into pre-biased output voltage
A power supply includes circuitry for gradually enabling switching rectifiers during a startup condition without drawing current from a pre-biased power supply output. A driver provides a control signal to synchronous rectifier. A driver supply circuit is coupled across the driver and has a first input receiving pulse signals provided by a pulse modulation controller, an output providing supply voltage to the driver, a second input receiving driver supply input voltage, and circuitry defining a time constant. The circuitry includes a first switching element that turns on when pulse signals are provided and a second switching element connected to the output. The time constant is associated with a rise time for the power supply, and defined by selected component values, such that the second switching element only becomes fully conductive after elapsing of the time constant.
G05F 1/00 - Systèmes automatiques dans lesquels les écarts d'une grandeur électrique par rapport à une ou plusieurs valeurs prédéterminées sont détectés à la sortie et réintroduits dans un dispositif intérieur au système pour ramener la grandeur détectée à sa valeur ou à ses valeurs prédéterminées, c.-à-d. systèmes rétroactifs
A switch-mode power converter includes a power isolation transformer and a drive transformer having their various windings collectively wound on a magnetic core having a center leg and outer legs. A primary winding and one or more secondary windings of the power transformer are wound on the center leg, and first and second windings of the drive transformer are wound on an outer leg. A primary control circuit controls one or more primary switches to supply the input voltage to the primary winding. A secondary control circuit controls secondary switches connected between the secondary windings and a load. Another control circuit controls operation the primary and secondary control circuits based at least in part on a feedback signal. The drive transformer windings are further configured to provide isolation between the primary control circuit and the synchronous rectifier control circuit.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H01F 27/38 - Organes de noyaux auxiliairesBobines ou enroulements auxiliaires
86.
Digital phase adjustment for multi-phase power converters
A multiphase power converter includes one or both of a phase control circuit and a valley switching locking circuit. The phase control circuit measures a phase difference between a first phase circuit and a second phase circuit and varies an on-time of a drive switch of the second phase circuit to produce and maintain a predetermined phase difference between the first phase circuit and the second phase circuit. When the multiphase power converter is operating in a discontinuous mode of operation, the valley switching locking circuit counts the number of zero crossings of an input current of the first phase circuit and blocks a second zero crossing detection signal from a waveform generator (i.e., PWM driver) associated with the second phase circuit until an input current of the second phase circuit has as many zero crossings as that of the first phase circuit input current.
G05F 1/00 - Systèmes automatiques dans lesquels les écarts d'une grandeur électrique par rapport à une ou plusieurs valeurs prédéterminées sont détectés à la sortie et réintroduits dans un dispositif intérieur au système pour ramener la grandeur détectée à sa valeur ou à ses valeurs prédéterminées, c.-à-d. systèmes rétroactifs
H02M 5/42 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases avec transformation intermédiaire en courant continu par convertisseurs statiques
H02M 7/68 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
87.
Input current shaping for transition and discontinuous mode power converter
A power converter operable to draw an input current that is in phase with an input voltage of the power converter and proportional to a voltage of the input voltage of the power converter includes a drive switch, a waveform generator, and a current shaping circuit. The drive switch is connected between an input inductor and ground and draws current through the input inductor when turned on. The current shaping circuit provides an on-time of the drive switch for a next cycle of the drive switch as a function of an input current decay time, a switching period of the waveform generator, and an output voltage of the power converter. The waveform generator is responsive to the on-time provided by the current shaping circuit for selectively turning the drive switch on and off to cycle the drive switch as a function of the received on-time.
An electrical connector (100) including one or more contacts (102) and a contact substrate (104). The contact includes a wadded wire element (106) and a sleeve (108). The electrical connector is used to connect a first electrical component (120, 122) to a second electrical component (120, 122). The electrical components may be integrated circuit chip packages, printed circuit boards, wire contacts, headers, and wiring harnesses. The contact which includes the sleeve is able to provide more electrical power at a given temperature than the contact which includes the wadded wire element but not the sleeve. The sleeve may include an element retention feature (320) to retain the wadded wire element within the sleeve. The sleeve may include a sleeve retention feature (312) to retain the sleeve within the contact substrate.
A power supply system includes a digital power manager and multiple power blocks each conveying regulated power to a respective load. The power blocks include the power part of non-isolated DC/DC converters, signal sampling and conversion circuits to provide analog voltage signal representing output voltage, output current, temperature, etc., and driving circuits to receive pulse width modulation (PWM) signals and drive switching devices. Closed-loop voltage control and protection functions for the power blocks are integrated into the digital power. The digital power manager includes a non-volatile memory containing registers, including a digital power manager configuration register, a power block set-up register, and a power block monitor register, as well as a user-definable space. The digital power manager programs and monitors operation of each power block, and may also include a user interface, such as an I2C interface, for receiving programming data from a host user system and send monitoring data thereto.
H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02M 3/157 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation avec commande numérique
H02M 1/00 - Détails d'appareils pour transformation
90.
MODULAR CONNECTOR PLUG FOR HIGH SPEED APPLICATIONS
A modular connector plug for high speed applications includes a wire guide filter at least partially situated in the conductor-receiving cavity of the housing of the plug. The wire guide filter includes an impedance containing portion comprising a longitudinally extending body having a plurality of longitudinally extending passageways and an internal cable guide portion comprising a longitudinally extending body defining a plurality of longitudinally extending passageways.
A modular connector plug for high speed applications includes a wire guide filter at least partially situated in the conductor-receiving cavity of the housing of the plug. The wire guide filter includes an impedance containing portion comprising a longitudinally extending body having a plurality of longitudinally extending passageways and an internal cable guide portion comprising a longitudinally extending body defining a plurality of longitudinally extending passageways.
A power supply for an LED lamp has a set of coupled coils, primary-side power circuitry including a converter power switch for conducting input power, and secondary-side power circuitry including a dimming power switch. Power control circuitry includes converter control circuitry which generates a converter control signal for the converter power switch to maintain a desired undimmed level of lamp current at a normal operating value of a lamp voltage. Dimming control circuitry generates a dimming control signal for the dimming power switch to pulse-width modulate the lamp current at a duty cycle corresponding to a desired dimming. Operation of the converter control circuitry is modified during dimming to prevent an automatic increase of the lamp voltage in response to a decrease in lamp current, avoiding undesirable overshooting of the lamp current and providing more accurate and effective control over dimming operation.
G05F 1/00 - Systèmes automatiques dans lesquels les écarts d'une grandeur électrique par rapport à une ou plusieurs valeurs prédéterminées sont détectés à la sortie et réintroduits dans un dispositif intérieur au système pour ramener la grandeur détectée à sa valeur ou à ses valeurs prédéterminées, c.-à-d. systèmes rétroactifs
H05B 41/16 - Circuits dans lesquels la lampe est alimentée par courant continu ou par courant alternatif à basse fréquence, p. ex. courant alternatif à 50 Hertz
H05B 41/24 - Circuits dans lesquels la lampe est alimentée par courant alternatif à haute fréquence
93.
Electrical isolation device capable of limiting magnetic saturation even upon receipt of high power D.C. bias and, method for making the same and connector incorporating the same
An electrical device is produced by winding wires around a core. The device may be used as a transformer. Wires are inserted into, through and around a first hole and a first side of a core a desired number of times. Thereafter, the wires are extended along either a top or a bottom of the core and then passed through and around a second hole of the core. After the wires are wound around the second hole of the core and a second side of the core, the production of the device is complete.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
The present invention relates to an optical connector for use in a fiber optic communications system, and particularly an expanded beam optical connector (20) for connecting optical fibers. The connector (20) comprises a housing (6), a port (48) within the housing for receiving an end (35) of an optical fiber (38), a cylindrical ferrule (32) within the housing (6) having opposite first and second ends (33, 35), and an optical fiber stub held axially (14) within the ferrule (32) and extending between said ferrule ends (33, 35). The connector (20) also has a lens (8) for projecting and/or receiving an expanded beam (40) optically coupled with the optical fiber stub at the first ferrule end (33). A sleeve (34) surrounds the ferrule (32) and extends towards the port (48) axially away from the second ferrule end (35) to present an open end to the sleeve for receiving a termination ferrule (36) of an optical fiber (38) inserted into the port. The connector (20) has a connector portion (2, 4, 5) for connecting the optical fiber connector (20) to another expanded beam optical fiber connector so that said expanded beam (40) traverses between the connectors. A channel (28) extends through the housing (6) from the port (48) towards the lens (8), the ferrule (32) being secured by means of a ring (80) within the channel (28), the ring having an outer surface (78) that makes an interference fit with an inner surface (25) of the channel and an inner surface (76) that makes an interference fit with an outer surface (74) of the ferrule towards the first ferrule end. (33).
The cable assembly may include a plug connector, a cable, and a connector. The plug connector may include a housing and a board assembly. The board assembly may include a printed circuit board. The edge of the printed circuit board may be enclosed with a material. The material may be an overmolded plastic or a coating of a material. In order to reduce the crosstalk in the areas where the cable shield is removed, a shielding assembly may be used. The shielding assembly may provide 360 degrees of shielding for the wire pair at the location where the cable shield is removed. The printed circuit board may have a trace layer, a core layer, and a ground plane layer. The ground plane layer may have a portion which is a solid layer and another portion which is a non-solid layer.
An isolation magnetic device produced by inserting a first end of a wire through a first hole of a core, wrapping the first end of the wire around a first side of the core and inserting the first end of the wire through a second hole of the core. The second hole of the core is spaced from the first hole and has a longitudinal axis extending parallel to a longitudinal axis of the first hole. The device is further produced by inserting a second end of the wire through the second hole of the core, wrapping the second end of the wire around the first side of the core and inserting the second end of the wire through the first hole of the core.
H01F 27/00 - Détails de transformateurs ou d'inductances, en général
H01F 21/06 - Inductances ou transformateurs variables du type pour signaux continûment variables, p. ex. variomètres par déplacement du noyau ou d'une partie du noyau par rapport à l'enroulement ou aux enroulements dans l'ensemble
H01F 17/04 - Inductances fixes du type pour signaux avec noyau magnétique
H01F 7/06 - Électro-aimantsActionneurs comportant des électro-aimants
98.
Apparatus and method of optimizing power system efficiency using a power loss model
A power subsystem is actively optimized to improve total subsystem efficiency in a way that is responsive to changes in load requirements, power supply variations, and subsystem temperature variations. Detailed, multidimensional power loss models are developed for constituent devices which are then combined into a power subsystem containing a controller and circuity for measuring device operating parameters such as input and output voltage, output current, and temperature. Operating parameters are continually monitored, and set points are correspondingly changed based on the detailed power loss models to achieve maximum overall efficiency for the instantaneous operating state of the system.
H02M 7/797 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
99.
Method and apparatus for providing an initial bias and enable signal for a power converter
The invention relates to a switch-mode power converter including a bias circuit. A power converter power transformer includes a magnetic core. The switch-mode power converter power transformer also includes an initial bias primary winding and an initial bias secondary winding, both wound on the magnetic core, wherein the initial bias secondary winding shares at least one magnetic path in common with the initial bias primary winding. A driver is configured to drive the initial bias primary winding with high frequency pulses when enabled by an enable signal. A rectifier and capacitor are configured to provide a voltage to power a control circuit during a power converter start-up. A method provides an initial bias power for a power converter output side referenced controller, powering the output side referenced controller from the initial bias windings.
There is provided an optical assembly (100) comprising an optical fiber arrangement (220, 230) and a lens arrangement (120). The lens arrangement (120) is spatially disposed relative to the fiber arrangement (220, 230) so as to be capable of providing an axial substantially collimated beam of radiation in response to receiving radiation from the optical fiber arrangement (220, 230) and capable of providing a focused beam of radiation to the optical fiber arrangement (220, 330) in response to receiving substantially collimated radiation to the lens arrangement (120). The assembly (100) further comprises a configuration of elements (110, 130, 200, 260) for spatially disposing the optical fiber arrangement (220, 230) relative to the lens arrangement (120). The configuration of elements (110, 130, 200, 260) provides for independent adjustment of relative lateral position between the optical fiber arrangement (220, 230) and the lens arrangement (120) in relation to axial position of the optical fiber arrangement (220, 230) relative to the lens arrangement (120). Such independent adjustment assists in fabrication of the assembly (100).