Abrégé

A three-dimensional loop type vapor chamber includes a plate vapor chamber and a plurality of U-shaped heat pipes. The plate vapor chamber includes an upper casing, a lower casing, and a capillary structure. The capillary structure is disposed between the upper casing and the lower casing. A heat absorption area and a heat dissipation area are formed within the plate vapor chamber. The capillary structure includes a capillary structure cavity located in the heat absorption area. The upper casing in the heat absorption area comprises a plurality of first openings, and the upper casing in the heat dissipation area comprises a plurality of second openings. Each U-shaped heat pipe includes an inlet end and an outlet end respectively fixed to a corresponding first opening and a second opening of the upper casing of the plate vapor chamber.

Classes IPC  ?

• F28D 15/04 - Appareils échangeurs de chaleur dans lesquels l'agent intermédiaire de transfert de chaleur en tubes fermés passe dans ou à travers les parois des canalisations dans lesquels l'agent se condense et s'évapore, p. ex. tubes caloporteurs avec des tubes ayant une structure capillaire

Abrégé

A magnetic device, comprising a body and a coil disposed in the body, wherein a terminal part of the conductive wire forming the coil comprises a first portion and a second portion, wherein the first portion is exposed from the body for forming an electrode, wherein the second portion of the terminal part is deformed for increasing the distance between the terminal part of the conductive wire and the coil for preventing a short circuit.

Classes IPC  ?

• H01F 27/28 - BobinesEnroulementsConnexions conductrices
• H01F 27/24 - Noyaux magnétiques
• H01F 27/29 - BornesAménagements de prises
• 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 41/06 - Enroulement de bobines

Abrégé

A cooling assembly includes a casing, a power module, and a cooling plate. The casing has a first chamber and a second chamber therein. The top portions of the first chamber and the second chamber respectively have an outlet and an inlet at the same-side ends of the first chamber and the second chamber. The power module is located in the casing and at least partially overlaps with the first chamber and the second chamber. The cooling plate is disposed on the power module. The cooling plate includes at least two linear flow channels and a curved flow channel communicated with the same-side ends of the two linear flow channels. When a working fluid flows from the first chamber to the second chamber, different sections of the working fluid along the width direction of the cooling plate have the same average temperature per unit area.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A power system includes a cabinet, an insulating extension arm, a conductive bar, a fixing member, and a power cord. The cabinet has an interior space and a bracket located in the interior space. The insulating extension arm is located in the interior space and fixed to the bracket. The conductive bar is located in the interior space. The fixing member passes through the conductive bar and is connected to the insulating extension arm, and allows the conductive bar to move toward and away from the insulating extension arm. One end of the power cord is electrically coupled to the conductive bar. A power module configured to be inserted into the interior space includes a housing and a circuit board. The circuit board is fixed to the housing and includes an electrical connector having a connection port configured to plug into the conductive bar.

Classes IPC  ?

• H05K 5/00 - Enveloppes, coffrets ou tiroirs pour appareils électriques
• H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques Détails

Abrégé

A motor preheating system and a control method are provided. The driving circuit provides a direct current by the switch to control the motor. The motor temperature control unit performs an outer-loop control and includes a switch temperature limiter. The motor temperature control unit generates a maximum switch temperature command according to a comparison result between a motor temperature feedback signal of the motor and a motor temperature command. The switch temperature control unit performs a first inner-loop control and includes a current limiter. The switch temperature control unit generates a maximum current command according to the maximum switch temperature command and a maximum switch temperature of the driving circuit. The current control unit performs a second inner-loop control to control the driving circuit according to the maximum current command, so that the motor is controlled. The maximum current command is a continuous output current.

Classes IPC  ?

• H02P 29/68 - Commande ou détermination de la température du moteur ou de l'entraînement basée sur la température d’un composant d’entraînement ou d’un composant semi-conducteur

Abrégé

A chassis device is disclosed and includes an accommodation space, a chassis unit, a sliding component, a positioning component and a handle component. The sliding component is disposed between the accommodation space and the chassis unit along the first direction. The positioning component is arranged in the accommodation space. The chassis unit includes a guiding groove arranged along the first direction and spatially corresponding to the positioning component. When the chassis unit is placed into the accommodation space along the first direction, the positioning component is limited to the guiding groove. The handle component is pivotally mounted on the chassis unit and includes a hook end and a holding end. When the handle component is in a first position, the hook end, the guiding groove and the positioning component are aligned, allowing the hook end engaging the positioning component and driving the handle component to rotate to a second position.

Classes IPC  ?

• H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti

Abrégé

A heat exchanger is provided, including a first case, a second case, a substrate, an engaging structure, an evaporator, a condenser, a first tube, and a second tube. The first case includes a first recess. The second case includes a second recess. The substrate is situated between the first case and the second case, and accommodated in the first recess and the second recess. The engaging structure is connected to the substrate, an inner wall of the first recess, and an inner wall of the second recess. The substrate is in contact with at least three different lateral surfaces of the engaging structure so that the substrate and the first case combine are bonded.

Classes IPC  ?

• F28D 15/02 - Appareils échangeurs de chaleur dans lesquels l'agent intermédiaire de transfert de chaleur en tubes fermés passe dans ou à travers les parois des canalisations dans lesquels l'agent se condense et s'évapore, p. ex. tubes caloporteurs

Abrégé

A socket connection assembly is disclosed and includes a socket, a connection board and metal connection components. The socket includes a main body and leading pins, and the leading pins are extended along a first direction. The connection board is disposed adjacent to the main body and parallel to the first direction. The metal connection components are connected between the leading pins and the connection board. The metal connection component includes a connection portion connected between a fitting end and a plug-in end. The fitting end is attached to the rear end of the main body, the connection portion is connected between the fitting end and the plug-in end, and the plug-in end runs through the connection board and forms an electrical connection through welding. The leading pins run through the fitting ends of the metal connection components and form an electrical connection through welding.

Classes IPC  ?

• H01R 12/51 - Connexions fixes pour circuits imprimés rigides ou structures similaires
• H01R 4/02 - Connexions soudées ou brasées
• H01R 12/72 - Dispositifs de couplage pour circuits imprimés rigides ou structures similaires se couplant avec la bordure des circuits imprimés rigides ou des structures similaires

Abrégé

An AC-DC conversion circuit includes a power measurement circuit, a control circuit, and three bridge arm circuits. Each bridge arm circuit includes a plurality of switches. The power measurement circuit is used to measure at least one of an input power and an output power to generate a power measurement value. When the power measurement value is less than a power threshold value, the control circuit controls the switches of the three bridge arm circuits to set the three bridge arm circuits to operate in a light load mode. When the power measurement value is greater than the power threshold value, the control circuit controls the switches of the three bridge arm circuits to set the three bridge arm circuits to operate in a heavy load mode.

Classes IPC  ?

• 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 1/00 - Détails d'appareils pour transformation
• H02M 1/084 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques utilisant un circuit de commande commun à plusieurs phases d'un système polyphasé
• H02M 1/088 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques pour la commande simultanée de dispositifs à semi-conducteurs connectés en série ou en parallèle

Abrégé

A single-phase busbar suitable for high-frequency signals and motor system. The single-phase busbar includes a plurality of conductive layers and a plurality of insulating layers extending from input end to output end. Between any two adjacent conductive layers is provided with at least one insulating layer. The conductive layers and the insulating layers are alternately stacked, and the conductive layers are at least electrically connected to each other at the input end and electrically connected to each other at the output end.

Classes IPC  ?

• H01B 7/02 - Disposition de l'isolement

Abrégé

Power converters and methods for controlling the same are disclosed and include primary sides of two transformers connected in series to form a primary series assembly and an input switch assembly operating in a full-bridge mode or a half-bridge mode. In a first configuration, the primary series assembly and a capacitor are connected in series between two nodes of the input switch assembly, and a control module is electrically connected to the input switch assembly. Alternatively, in the second configuration, a node of the input switch assembly is electrically connected to a node formed in a series connection of two input capacitors through a back-to-back switch assembly, and the control module is electrically connected to the input switch assembly and the back-to-back switch assembly. In the full-bridge mode, there is a phase shift value between control signals of two switches.

Classes IPC  ?

• 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

Abrégé

A heat exchanger is provided, including a first case, a second case, a substrate, an engaging structure, an evaporator, a condenser, a first tube, and a second tube. The first case includes a first plate structure and a first protruding structure. The plate structure has an inner surface, and the protruding structure protrudes from the inner surface. The second case includes a recess. The substrate is disposed between the first case and the second case, and corresponds to the protruding structure and the recess. The substrate is engaged with the inner surface, the protruding structure, and an inner wall of the recess via the engaging structure, and the substrate is in contact with at least three different lateral surfaces of the engaging structure so that the substrate and the first case combine are bonded.

Classes IPC  ?

• F28D 15/02 - Appareils échangeurs de chaleur dans lesquels l'agent intermédiaire de transfert de chaleur en tubes fermés passe dans ou à travers les parois des canalisations dans lesquels l'agent se condense et s'évapore, p. ex. tubes caloporteurs

Abrégé

An output current protection controller includes a comparator circuit and a threshold voltage generator circuit. The comparator circuit compares a current sensing signal with a detection threshold voltage to generate a control signal that controls output current protection of a switching regulator circuit. The current sensing signal is indicative of an output current of the switching regulator circuit. The threshold voltage generator circuit adaptively adjusts the detection threshold voltage according to temperature variation.

Classes IPC  ?

• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• H02M 1/00 - Détails d'appareils pour transformation
• 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

Abrégé

An electric power system comprises an utility power grid connected to a first switch; and a microgrid connected to the utility power grid through the first switch, the microgrid comprising: inverter devices connected to a bus; a controller connected to the first switch and the inverter devices, and configured to transmit first signals; and loads connected to the inverter devices through the bus, wherein the utility power grid is connected to the bus through the first switch, and is configured to provide power to the loads, the controller is further configured to detect a first lane connecting the utility power grid with the microgrid and determine whether the first lane is abnormal, and when the first lane is abnormal, the controller cuts off the first switch, and switches a first part of the inverter devices to a voltage source configuration through the first signals.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• H02J 3/28 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie

Abrégé

An electronic motor emulator is used to emulate a motor and receive an output signal of a device under test. The electronic motor emulator includes a controller and a power stage circuit. The power stage circuit includes a first three-phase inductor, a back-EMF emulator, and an inductance compensator. The controller correspondingly calculates a three-phase current provided by the device under test according to the output signal, and provides a control signal corresponding to the three-phase current. The EMF emulator emulates a back EMF corresponding to the output signal according to the control signal. The inductance compensator compensates the first three-phase inductor to emulate a magnetizing inductance of the motor so that the power stage circuit extracts the three-phase current according to the back EMF and the magnetizing inductance.

Classes IPC  ?

• G01R 31/34 - Tests de machines dynamoélectriques
• G06F 30/367 - Vérification de la conception, p. ex. par simulation, programme de simulation avec emphase de circuit intégré [SPICE], méthodes directes ou de relaxation
• G06F 111/10 - Modélisation numérique
• G06F 119/06 - Analyse de puissance ou optimisation de puissance

Abrégé

A voltage compensation system and an uninterruptible power supply are provided. The voltage conversion device selectively receives the first AC input source or the second AC input source through the first switching device, and converts the first AC input source or the second AC input source into a DC voltage. The energy buffering device is connected with the DC busbar. The energy buffering device includes a bidirectional voltage conversion device and an energy tank. One terminal of the bidirectional voltage conversion device is connected with the DC busbar. The energy tank is connected with the other terminal of the bidirectional voltage conversion device. During a dead time of the first switching device switching between the first AC input source and the second AC input source, the controller controls the bidirectional voltage conversion device, so that the DC voltage is compensated by the energy tank.

Classes IPC  ?

• H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
• H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
• H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs

Abrégé

A coupled inductor has two coils made by film processes, wherein a first coil is disposed on a top surface of a magnetic sheet and a second coil is disposed on a bottom surface of the magnetic sheet, for controlling the variations of the gap between the two coils in a smaller range.

Classes IPC  ?

• B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
• B22F 1/052 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules caractérisées par un mélange de particules de dimensions différentes ou par la distribution granulométrique des particules
• B22F 1/14 - Traitement des poudres métalliques
• B22F 1/16 - Particules métalliques revêtues d'un non-métal
• H01F 1/153 - Alliages métalliques amorphes, p. ex. métaux vitreux
• H01F 27/02 - Enveloppes
• H01F 27/24 - Noyaux magnétiques
• H01F 27/28 - BobinesEnroulementsConnexions conductrices
• H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
• H01F 41/04 - 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 pour la fabrication de bobines
• H01F 41/12 - Isolement d'enroulements

Abrégé

The present disclosure provides a filter system including N common mode chokes, N+1 first capacitors, N+1 second capacitors and N+1 third capacitors. Each common mode choke includes a first winding, a second winding, a third winding and an auxiliary winding. In the k-th common mode choke, a second terminal of the k-th first capacitor, a second terminal of the k-th second capacitor and a second terminal of the k-th third capacitor are all electrically connected to a k-th electrical midpoint, and two terminals of the auxiliary winding of the k-th common mode choke are electrically connected to the k-th electrical midpoint and a (k+1)-th electrical midpoint respectively, N is a positive integer and k is a positive integer less than or equal to N.

Classes IPC  ?

• H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• H02M 1/44 - Circuits ou dispositions pour corriger les interférences électromagnétiques dans les convertisseurs ou les onduleurs
• H02M 7/487 - Onduleurs bloqués au point neutre

Abrégé

A transformer module includes an AC-DC converter, a DC-DC converter and a controller. The AC-DC converter receives an AC voltage and includes a first bridge arm, a second arm and a DC link. The first bridge arm has a plurality of first switches. The DC link is configured to generate a DC link voltage. The DC-DC converter is configured to receive the DC link voltage and includes a plurality of second switches. This controller is configured to: detecting a first detection signal of the AC-DC converter and a second detection signal of the DC-DC converter; in response to the first detection signal being in an abnormal state, reducing the DC link voltage through the second switches; and in response to the second detection signal being in the abnormal state, reducing the DC link voltage through the first switches.

Classes IPC  ?

• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• H02M 1/00 - Détails d'appareils pour transformation
• 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 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

Abrégé

A fan assembly includes a chassis, a bracket seat, a flexible board structure, and a fan set. The bracket seat is arranged in the chassis and includes a frame body and a pair of elastic arms. An insertion slot is defined between the pair of elastic arms and the frame body. The flexible board structure includes a flexible circuit board, a connector, and a stiffener. The flexible board structure is configured to be moved by a robot arm, and the stiffener is secured by the elastic arms to position the connector in the insertion slot. The fan set includes a fan and a fan socket set. The fan socket set is configured to be moved by a robot arm to connect to the connector.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• H01R 12/81 - Dispositifs de couplage pour circuits imprimés flexibles, câbles plats ou à rubans ou structures similaires se raccordant à un autre câble à l'exclusion d'un câble plat ou à rubans
• 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

Abrégé

A microgrid is coupled to a utility grid, and includes a first converter resource device, a generator and a controller. The first converter resource device is configured to generate a first energy. The generator is configured to generate a second energy. The controller is coupled to and controls the first inverter resource device and the generator device. The controller is configured to: in response to frequency of the utility grid decreasing or increasing, set the microgrid to output at least one of the first energy and the second energy. The first energy is virtual inertia energy, and the second energy is non-virtual inertia energy.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs

Abrégé

A fan and a manufacturing method thereof are provided. The fan includes a hub having a circumference, a plurality of first blades, a mute ring and a plurality of second blades. Each of the plurality of first blades includes a first terminal disposed at the circumference of the hub and a second terminal opposite to the first terminal. The mute ring is disposed at the second terminal of each of the plurality of first blades. The plurality of second blades are disposed at the second terminal of each of the plurality of first blades and connected to the mute ring, wherein the plurality of second blades and the plurality of first blades are alternately arranged.

Classes IPC  ?

• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
• F04D 29/02 - Emploi de matériaux spécifiés

Abrégé

A flexible manufacturing system is provided. The flexible manufacturing system includes a starting feeding platform, a first production line, a second production line, a terminal discharging platform, and a transfer apparatus. The first production line includes a plurality of first working machines and a first conveying mechanism. The second production line includes a plurality of second working machines and a second conveying mechanism. The terminal discharging platform is disposed at the downstream of the second production line. The transfer apparatus is disposed between the first production line and the second production line.

Classes IPC  ?

• B23Q 7/14 - Agencements pour la manipulation des pièces, spécialement combinés aux machines-outils ou disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines, p. ex. pour le transport, le chargement, le positionnement, le déchargement, le triage coordonnés pour permettre un travail en chaîne

Abrégé

A capillary device is provided. The capillary device includes a carrier element, a first metal braided layer, and a second metal braided layer. The carrier element has an inner surface and includes a tubular portion and a first end portion connected to the tubular portion. The first end portion is a closed end portion. The first metal braided layer is disposed on the inner surface of the carrier element. The second metal braided layer is disposed on the first metal braided layer. The first metal braided layer covers 50%˜80% of the inner diameter circumference of the carrier element, and the second metal braided layer covers 70%˜90% of the inner diameter circumference of the first metal braided layer.

Classes IPC  ?

• F28D 15/04 - Appareils échangeurs de chaleur dans lesquels l'agent intermédiaire de transfert de chaleur en tubes fermés passe dans ou à travers les parois des canalisations dans lesquels l'agent se condense et s'évapore, p. ex. tubes caloporteurs avec des tubes ayant une structure capillaire

Abrégé

This disclosure provides an internal circulation heat dissipation fan having a stator and an impeller. The impeller has a hub and multiple fan blades arranged around the hub, the hub having an inner shell and an outer shell sheathing the inner shell, the stator is accommodated in the inner shell, an internal flow channel is defined between the inner shell and the outer shell, the internal flow channel has a side communicated to a space in the inner shell and another side communicated to outside of the outer shell, multiple heat dissipation blades are arranged in the internal flow channel and annually disposed. Each heat dissipation blade has two opposite edges respectively connected to the inner shell and the outer shell.

Classes IPC  ?

• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
• F04D 19/00 - Pompes à flux axial spécialement adaptées aux fluides compressibles
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 25/08 - Ensembles comprenant des pompes et leurs moyens d'entraînement le fluide énergétique étant l'air, p. ex. pour la ventilation
• F04D 29/32 - Rotors spécialement adaptés aux fluides compressibles pour pompes à flux axial

Abrégé

A system includes a maximum power point (MPP) tracker coupled between a first solar panel string and a DC voltage bus, wherein the MPP tracker includes a first DC/DC converter and is configured to perform a maximum power point tracking (MPPT) control scheme on the first DC/DC converter, a power reservoir coupled between a second solar panel string and the DC voltage bus, wherein the power reservoir includes a second DC/DC converter, and an inverter coupled between the DC voltage bus and a power grid, wherein the inverter is configured to operate in multiple modes including a grid-forming (GFM) mode and a grid-following (GFL) mode, and wherein in the GFM mode, the second DC/DC converter is configured to regulate a voltage on the DC voltage bus.

Classes IPC  ?

• H02J 3/466 -
• H02J 3/0014 -
• H02J 101/24 -
• H02M 1/00 - Détails d'appareils pour transformation

Abrégé

A rack-based power system is used to supply power to a server through a power busbar, and includes a power shelf and a power balancing device. The power shelf is used to receive an input power and provides an output current to the power busbar so that the power busbar accordingly transmits a system current to supply power to the server. The power balancing device receives a bus voltage signal from the power busbar. When a falling rate of the busbar voltage signal exceeds a discharging voltage threshold, the power balancing device provides a first adjustment current to the power busbar. When a rising rate of the busbar voltage signal exceeds a charging voltage threshold, the power balancing device receives a third adjustment current from the power busbar.

Classes IPC  ?

• G06F 1/3234 - Économie d’énergie caractérisée par l'action entreprise
• G06F 1/18 - Installation ou distribution d'énergie
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries

Abrégé

A generative question answering system is disclosed. The generative question answering system includes an input-output device, a memory, and a processor. Input-output device is configured to receive input information. The memory is configured to store the character database and text knowledge database. The character database records several character templates and several dialogue examples, and the text knowledge database stores several candidate texts. The processor is configured to: obtain at least one candidate text from the text knowledge database based on the input information, and generate a first output text based on the input information and the at least one candidate text; obtain the first character template and at least one dialogue example from the character database based on the input information; and generate a second output text based on the input information, the first character template, at least one dialogue example and the first output text.

Classes IPC  ?

• G06F 16/3329 - Formulation de requêtes en langage naturel
• G06F 16/334 - Exécution de requêtes
• G06F 40/35 - Représentation du discours ou du dialogue

Abrégé

A power supply includes an AC-DC converter, a feedback circuit, an under voltage protection circuit, a control signal generating circuit, a voltage abnormal protection circuit and an auxiliary under voltage detection circuit. The AC-DC converter converts an AC voltage to a DC voltage. The feedback circuit generates a feedback signal according to the DC voltage. The control signal generating circuit sets the AC-DC converter to convert the AC voltage to the DC voltage. When the auxiliary under voltage detection circuit detects that a duration of the AC voltage being less than a predetermined voltage is longer than a predetermined period, the auxiliary under voltage detection circuit changes a signal value of the feedback signal, to enable the control signal generating circuit by the voltage abnormal detection circuit to set the AC-DC converter to perform a soft start procedure.

Classes IPC  ?

• H02M 1/00 - Détails d'appareils pour transformation
• H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
• H02M 7/04 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques

Abrégé

A colloid dispensing system is provided. The colloid dispensing system includes a computer device. The computer device includes a colloid dispensing parameter-setting module and a dispensing simulation module. The colloid dispensing parameter-setting module is configured to set at least one colloid dispensing parameter. The dispensing simulation module is configured to perform a colloid physical simulation based on the colloid dispensing parameter to generate a digital twin of a dispensing result. The colloid physical simulation is based on a Navier-Stokes equation, a surface tension physical model, or both.

Classes IPC  ?

• B05C 11/10 - Stockage, débit ou réglage du liquide ou d'un autre matériau fluideRécupération de l'excès de liquide ou d'un autre matériau fluide
• G05B 17/02 - Systèmes impliquant l'usage de modèles ou de simulateurs desdits systèmes électriques

Abrégé

A motor drive method comprising: obtaining a frequency variation curve corresponding to a single-phase induction motor, wherein the frequency variation curve is configured to indicate multiple set frequencies, and comprises a target frequency; providing a power command to the single-phase induction motor, wherein an initial frequency of the power command is less than the target frequency; when one of the multiple set frequencies corresponding to the present time is greater than the initial frequency, controlling the present frequency of the power command according to the frequency variation curve; when one of the multiple set frequencies is less than or equal to the initial frequency, maintaining the present frequency; when the output current is greater than or equal to the current threshold, fixing the present voltage; and when the output current is lower than the current threshold, increasing the present voltage.

Classes IPC  ?

• H02P 27/04 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs
• H02P 1/42 - Dispositions de démarrage de moteurs électriques ou de convertisseurs dynamo-électriques pour faire démarrer des machines dynamo- électriques ou des convertisseurs dynamo-électriques pour faire démarrer individuellement un moteur d'induction monophasé

Abrégé

A magnetic component includes a magnetic device, a base and a positioning frame. The magnetic device has a top part and a bottom part arranged opposite to each other, and includes a magnetic core and a winding wound around the magnetic core. The base includes a base plate. The positioning frame has a positioning part and a peripheral wall, where a first end of the peripheral wall is perpendicularly connected to a peripheral edge of the positioning part. A second end of the peripheral wall of the positioning frame is connected to a peripheral edge of the base plate, causing the positioning frame and the base plate to jointly enclose an accommodating space. The magnetic device is located in the accommodating space. The top part of the magnetic device cooperates in a contacting manner with the positioning part of the positioning frame.

Classes IPC  ?

• H01F 7/20 - Électro-aimantsActionneurs comportant des électro-aimants sans armature
• H01F 3/00 - Noyaux, culasses ou induits
• H01F 7/127 - Assemblage

Abrégé

An integrated magnetic component and a manufacturing method thereof for a multi-module DC-DC converter are provided. The integrated magnetic component includes N primary windings, N secondary windings and N magnetic cores, and N is an integer greater than one. The N magnetic cores are arranged sequentially, and each magnetic core includes a plate, first and second common core legs, an inductor core leg and a transformer core leg. The first common core leg and the second common core leg are disposed at a first side and a second side of the plate respectively. The inductor core leg is configured to be wound with a corresponding primary or secondary winding, and the transformer core leg is configured to be wound with the corresponding primary and secondary windings interleaved with each other.

Classes IPC  ?

• 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
• H02M 1/00 - Détails d'appareils pour transformation

Abrégé

The present disclosure relates to a magnetic component and an integrated magnetic assembly. The magnetic component includes a magnetic core set, a primary winding, a first secondary winding, a second secondary winding and a tertiary winding. The magnetic core set includes a central column, a first and a second lateral column. The first lateral column includes a first leg and a second leg. The second lateral column includes a third leg and a fourth leg. A first segment of the tertiary winding is wound on one of the first leg and the second leg, and a second segment of the tertiary winding is wound on one of the third leg and the fourth leg. The two lateral columns are divided into two legs respectively to achieve partial coupling through the tertiary winding. Consequently, the advantages of adjustable and enhanced coupling coefficient, reduced loss, saving footprint and enhanced performance are achieved.

Classes IPC  ?

• 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 27/24 - Noyaux magnétiques

Abrégé

Disclosed are a control method for a three-phase rectifier and a power conversion module. The control method includes: determining three-phase sinusoidal current reference signals according to an input voltage of the three-phase rectifier, a voltage of a first capacitor of the DC bus, and a voltage of a second capacitor of the DC bus; determining a common mode signal according to the voltage of the first capacitor and the voltage of the second capacitor; and determining, according to the sinusoidal current reference signal of any phase in the three-phase sinusoidal current reference signals, a carrier signal, the common mode signal and an input current of a corresponding phase, a gate signal of the corresponding phase, where the gate signal of the corresponding phase is configured to control an on or off of the switch unit of the corresponding phase.

Classes IPC  ?

• 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

Abrégé

A power supply and an operating method are provided. A detection circuit detects the input voltage and provides a detection result. A feedback circuit detects the output voltage and the output current and generates a feedback signal. A reference voltage generation circuit generates a reference voltage according to the input voltage and the feedback signal. A control signal generation circuit generates a control signal according to the reference voltage. When the detection circuit detects a duration during which the input voltage is less than a voltage threshold is longer than the time threshold, the reference voltage generation circuit adjusts the reference voltage within a hold-up time according to the detection result, the control signal generation circuit generates the control signal within the hold-up time according to the reference voltage to configure the power conversion circuit to decrease the output current.

Classes IPC  ?

• H02M 1/00 - Détails d'appareils pour transformation

Abrégé

A PCB magnetic assembly is disclosed and includes a multi-layer circuit board bracket structure and a magnetic component. The multi-layer circuit board bracket structure includes a multi-layer circuit board having an upper surface with an upper connection position and a lower surface with a lower connection position. The multi-layer circuit board includes an upper recess, a lower recess and a support layer. The support layer is an N-layer circuit board located between the upper recess and the lower recess, N≥1, and includes a copper layer and M through holes, M≥2. The copper layer is arranged around the through holes to form a winding, and includes a first terminal electrically connected to the upper connection position, and a second terminal electrically connected to the lower connection position. The magnetic component is arranged in the multi-layer circuit board bracket structure and partially passes through the through holes.

Classes IPC  ?

• H05K 1/02 - Circuits imprimés Détails
• H01F 27/24 - Noyaux magnétiques
• H01F 27/28 - BobinesEnroulementsConnexions conductrices

Abrégé

The present disclosure provides a magnetic core assembly fixture and a power module assembly method. The magnetic core assembly fixture includes a first pressing module and a second pressing module. The first pressing module includes a first base plate, first elastic members and latches. The first elastic members are disposed on the first base plate, and configured to abut against the first magnetic cores on a connected-panel structure of a power module. The latches are disposed on the first base plate, and configured to engage with the connected-panel structure. The second pressing module includes a second base plate, second elastic members and latches. The second elastic members are disposed on the second base plate, and configured to abut against the second magnetic cores on the connected-panel structure. The latches are disposed on the second base plate, and configured to engage with first pressing module.

Classes IPC  ?

• H01F 27/06 - Montages, supports ou suspensions de transformateurs, réactances ou bobines d'arrêt
• H01F 27/24 - Noyaux magnétiques

Abrégé

A power conversion apparatus includes a plurality of three-phase power modules, a switch matrix, and a controller. Each three-phase power module includes three single-phase AC-to-DC conversion units respectively receiving three AC voltages of a three-phase AC power supply, and converting the three AC voltages to provide a plurality of DC currents. The switch matrix receives the DC currents provided from the three-phase power modules. The controller provides a switch control signal to control the switch matrix to decide an output power provided by the DC currents.

Classes IPC  ?

• 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

Abrégé

A magnetic component is disclosed and includes a first magnetic core, a second magnetic core and a coil. The first magnetic core includes a first magnetic cover and a first guiding portion. The second magnetic core includes a second magnetic cover and a second guiding portion. The first magnetic core and the second magnetic core are butted along an axial direction to form a winding column. The first guiding portion is located on the first magnetic cover, and increases a depth embedded into the first magnetic cover. The second guiding portion is located on the second magnetic cover, and increases a depth embedded into the second magnetic cover. The coil is wound on the winding column at a helical angle α relative to the winding column, and includes a first outlet terminal and a second outlet terminal led out along the first guiding portion and the second guiding portion, respectively.

Classes IPC  ?

• 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 27/24 - Noyaux magnétiques
• H01F 27/28 - BobinesEnroulementsConnexions conductrices
• H01F 27/29 - BornesAménagements de prises

Abrégé

The present disclosure provides a monitoring method for monitoring a DC bus capacitor, including steps of: in a preset cycle, sampling an input voltage, an input current and an output voltage to obtain an input power; filtering the input power and the output voltage to obtain an AC component of the input power and an AC component of the output voltage; calculating a capacitance according to the DC component of the output voltage, the AC component of the input power and the AC component of the output voltage; obtaining a total weight coefficient corresponding to the capacitance; and outputting a monitoring capacitance of the DC bus capacitor according to the plurality of the capacitance calculated and obtained in a plurality of the preset cycles and the plurality of the total weight coefficients corresponding to the plurality of capacitance.

Classes IPC  ?

• G01R 31/64 - Test de condensateurs
• G01R 27/26 - Mesure de l'inductance ou de la capacitanceMesure du facteur de qualité, p. ex. en utilisant la méthode par résonanceMesure de facteur de pertesMesure des constantes diélectriques

Abrégé

A hybrid modular multilevel converter is provided. After the voltage difference is added to the original voltage of each half-bridge submodule or the original voltage of each full-bridge submodule, a compensation voltage is obtained. According to a bridge arm current and a voltage reference value, signals of one type of submodules with the compensation voltage and signals of the other type of submodules with the original voltages are sorted. Consequently, an operating sequence of the plurality of half-bridge submodules and the plurality of full-bridge submodules is acquired. The operating modes of the half-bridge submodules and the full-bridge submodules are calculated according to the original voltages of the half-bridge submodules, the original voltages of the full-bridge submodules, the voltage reference value and the operating sequence. A corresponding driving signal is generated to control the half-bridge submodules and the full-bridge submodules. Consequently, the voltage difference gradually approaches or equals to 0.

Classes IPC  ?

• 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
• H02M 1/00 - Détails d'appareils pour transformation

Abrégé

An apparatus includes a heat-dissipating substrate, a power circuit and a magnetic assembly. The heat-dissipating substrate includes a thermal contact surface. The power circuit includes at least one switch element in contact with the thermal contact surface of the heat-dissipating substrate. The magnetic assembly includes at least one first electrical conductor and a magnetic core module comprising at least one hole, wherein the at least one first electrical conductor passes through the at least one hole, and a terminal of the at least one first electrical conductor is electrically connected to the at least one switch element. The heat-dissipating substrate, the power circuit and the magnetic assembly are arranged in sequence along a same direction. A projection of the power circuit on the thermal contact surface partially overlaps a projection of the magnetic assembly on the thermal contact surface.

Classes IPC  ?

• H01F 27/28 - BobinesEnroulementsConnexions conductrices
• 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
• G06F 1/183 -
• H01F 17/04 - Inductances fixes du type pour signaux avec noyau magnétique
• H01F 17/06 - Inductances fixes du type pour signaux avec noyau magnétique avec noyau refermé sur lui-même, p. ex. tore
• H01F 27/02 - Enveloppes
• H01F 27/24 - Noyaux magnétiques
• H01F 27/29 - BornesAménagements de prises
• H01R 12/52 - Connexions fixes pour circuits imprimés rigides ou structures similaires se raccordant à d'autres circuits imprimés rigides ou à des structures similaires
• H01R 12/58 - Connexions fixes pour circuits imprimés rigides ou structures similaires caractérisées par les bornes bornes pour insertion dans des trous
• H02M 3/00 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu
• 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
• H05K 1/02 - Circuits imprimés Détails
• H05K 1/11 - Éléments imprimés pour réaliser des connexions électriques avec ou entre des circuits imprimés
• H05K 1/14 - Association structurale de plusieurs circuits imprimés
• H05K 1/16 - Circuits imprimés comprenant des composants électriques imprimés incorporés, p. ex. une résistance, un condensateur, une inductance imprimés
• H05K 1/181 -
• H05K 1/185 -
• H05K 3/28 - Application de revêtements de protection non métalliques
• H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• H10W 90/00 -

Abrégé

An embodiment of the present application specifically relates to a bobbin and a transformer, and belongs to the technical field of transformers. The bobbin includes a winding reel and at least one pin connection part, the at least one pin connection part is provided on an end face of the winding reel. The pin connection part includes a plurality of connecting through-holes and a first wire-passing groove, each of the connecting through-holes is inserted with a pin. The first wire-passing groove is located between two adjacent connecting through-holes, the first wire-passing groove passes through the pin connection part along a direction of a center line of the winding reel. The partial area of the groove wall of the first wire-passing groove is located in at least one connecting through-hole adjacent the first wire-passing groove to expose the pin.

Classes IPC  ?

• H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
• H01F 27/24 - Noyaux magnétiques
• H01F 27/28 - BobinesEnroulementsConnexions conductrices

Abrégé

A cold plate cooling device is disclosed and includes a vapor chamber, a cooling chamber, an inlet, an outlet and a jet module. The vapor chamber includes a top portion and a bottom portion arranged opposite to each other, and thermally coupled to a heat source and plural heat sink fins. The cooling chamber is arranged on the top portion. The inlet and the outlet are in fluid communication with the cooling chamber, respectively. A coolant enters the cooling chamber through the inlet, exchanges heat with the heat sink fins in the cooling chamber, and then is discharged through the outlet. The jet module includes a through-hole arranged between the inlet and the cooling chamber. A total through-hole area of the through-hole is smaller than a total opening area of the inlet. Thereby, an impingement flow is generated toward the heat sink fins to dissipate heat from the vapor chamber.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

An LED driver and an operating method thereof are provided. The LED driver includes a conversion circuit, a switch circuit and a control circuit. The positive and negative output terminals of the conversion circuit are electrically coupled to the LED light source through two switches of the switch circuit respectively. After the control circuit receives a light-off command, the control circuit generates the dimming signal to configure the conversion circuit to decrease the output current; and when the control circuit determines that the output current is less than a turn-off current threshold, the control circuit configures the two switches of the switch circuit to be in a non-conduction state.

Classes IPC  ?

• H05B 45/59 - Circuits pour faire fonctionner des diodes électroluminescentes [LED] réagissant aux dysfonctionnements des LED ou à un comportement indésirable des LEDCircuits pour faire fonctionner des diodes électroluminescentes [LED] sensibles à la vie des LEDCircuits de protection pour réduire ou supprimer les effets de scintillement ou de lueur
• H05B 45/10 - Commande de l'intensité de la lumière
• H05B 45/325 - Modulation de la largeur des impulsions [PWM]
• H05B 45/355 - Correction du facteur de puissance [PFC]Compensation réactive de la puissance
• H05B 45/375 - Alimentation du circuit à découpage [SMPS] en utilisant une topologie de dévoltage
• H05B 45/38 - Alimentation du circuit à découpage [SMPS] en utilisant une topologie de survoltage

Abrégé

An AC-AC converter and a power supply system are provided. The AC-AC converter of the present disclosure includes a first AC terminal with two sub terminals, a second AC terminal with three sub terminals, and a first bridge arm with two switch assemblies. The AC-AC converter receives and converts the input power between two wires and three wires. The two switch assemblies are activated, and bidirectional power flow is allowed. The two switch assemblies are performed as a voltage source for supporting both balanced and unbalanced loads. Both active and reactive power are also supported. Moreover, the AC-AC converter of the present disclosure has the advantages of reducing weight, size and cost, and enhancing conversion efficiency.

Classes IPC  ?

• H02M 5/293 - 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 sans transformation intermédiaire en courant continu 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

Abrégé

An integrated magnetic component is disclosed and includes a plurality of PCBs, a transformer and a plurality of inductors. The transformer includes a plurality of primary windings, a plurality of secondary windings, and two pieces of transformer cores. The primary windings and the secondary windings are disposed on the PCBs and wound around the two pieces of transformer cores. The inductors are disposed on the PCBs and connected to the transformer. The primary windings and the secondary windings of the transformer are disposed correspondingly in pairs on one of the PCBs, and the inductors are disposed adjacent to the transformer.

Classes IPC  ?

• H02M 3/00 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu
• H01F 3/14 - ContractionsFentes, p. ex. entrefers
• H01F 27/26 - Fixation des parties du noyau entre ellesFixation ou montage du noyau dans l'enveloppe ou sur un support
• H01F 27/28 - BobinesEnroulementsConnexions conductrices

Abrégé

A power module assembly includes a power module, a fixing device and at least one fixing element. The power module includes a housing and a protrusion body disposed on the housing. The fixing device is disposed on the protrusion body and includes at least one fixing portion, a first engaging portion and a second engaging portion, and plural connecting portions. The first engaging portion and the second engaging portion are respectively disposed at two opposite sides of the at least one fixing portion for respectively engaging with two opposite sides of the protrusion body. The plural connecting portions are respectively disposed between the at least one fixing portion and the first engaging portion and the at least one fixing portion and the second engaging portion. The at least one fixing element respectively fixes the at least one fixing portion, so as to fix the power module on an external device.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A heat dissipation device (100, 200), comprising a heat dissipation element (110) and a spoiler element (120). The heat dissipation element (110) has a heat dissipation surface (110T). The heat dissipation element (110) comprises a plurality of fin structures (111) located on the heat dissipation surface (110T) and protrude from the heat dissipation surface (110T). The spoiler element is joined to the heat dissipation element (110), wherein the spoiler element (120) has at least one planar part (121) and a plurality of protruding parts (122) connected to the planar part (121), and the protruding parts (122) protrude from the planar part (122) towards the heat dissipation surface (110T).

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Produits et services

Electric fans; ventilating fans; electric air circulation fans; ventilation installations and apparatus; air purifiers; air conditioning installations

Abrégé

A heat dissipation assembly is provided that includes a fan and a housing. The housing forms a plurality of joining structures that protrude from the outer surface of the housing, wherein the fan is disposed in the housing, and the joining structures are located in different positions of the housing. The holder is joined to one of the joining structures, thereby affixing the heat dissipation assembly to the body of the vehicle.

Classes IPC  ?

• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation

Abrégé

An electronic transformer includes a first forward rectifier, a second forward rectifier, a third forward rectifier and a backward rectifier. The first forward rectifier is coupled between a first-phase power and a first output terminal. The second forward rectifier is coupled between a second-phase power and the first output terminal. The third forward rectifier is coupled between a third-phase power and the first output terminal. The backward rectifier is coupled between a neutral line and a second output terminal. The first forward rectifier, the second forward rectifier, and the third forward rectifier are configured to half-wave rectify the first-phase power, the second-phase power, and the third-phase power to generate rectified first-phase to third-phase power sources, and superimpose the rectified first-phase to third-phase power sources on the first output end to serve as an output voltage of the electronic transformer.

Classes IPC  ?

• 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
• H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
• 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

Abrégé

Provided in the present application is a power supply system. The system comprises a direct-current bus, an AC-DC conversion circuit, a load circuit, an energy storage unit and a partial power conversion circuit. The AC-DC conversion circuit converts an alternating-current voltage into a direct-current bus voltage. When the energy storage unit discharges to the direct-current bus, the partial power conversion circuit directly transmits to the direct-current bus a first part of the electrical energy provided by the energy storage unit, and converts a second part of the electrical energy provided by the energy storage unit and then transmits same to the direct-current bus. When the energy storage unit is charged by the direct-current bus, the partial power conversion circuit directly transmits to the energy storage unit a first part of the electrical energy provided by the direct-current bus, and converts a second part of the electrical energy provided by the direct-current bus and then transmits same to the energy storage unit. In this way, the direct-current bus voltage is kept stable. (FIG. 3A)

Classes IPC  ?

• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
• H02M 3/10 - 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

Abrégé

The present disclosure provides a multi-level, bi-directional AC-DC converter, including a first inductor, a resonant branch having a second inductor and a first capacitor, and at least two pairs of switches arranged in a branch and coupled to the first inductor and the resonant branch, wherein the at least two pairs of switches are coupled to at least one circuit component. In one aspect, the multi-level converter is configured as an N-level, flying capacitor, multi-level converter, wherein N is greater than or equal to 3. A modulation method for the multi-level, bi-directional AC-DC converter includes modulating the inductor current using integrated triangular plus trapezoidal conduction modulation.

Classes IPC  ?

• H02M 1/00 - Détails d'appareils pour transformation
• H02M 1/14 - Dispositions de réduction des ondulations d'une entrée ou d'une sortie en courant continu
• H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
• 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

Abrégé

A control method for cooling distribution units (CDUs) is disclosed. The control method is applied to a CDU control system having a group at least including a first CDU and a second CDU, and includes the following steps: detecting the second CDU of a resting state; sending a low rotation-speed command to the first CDU and the second CDU to indicate both of the first and second CDUs to operate at a second rotation speed, wherein the second rotation speed is slower than a first rotation speed at which the first CDU currently operated; and, when determining both of the first and second CDUs to be operating at the second rotation speed for a preset time length, sending a target flow command to the first CDU and the second CDU to indicate both of the first and second CDUs to operate and output a target flow of cooling liquid.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A DC-DC power supply and control method thereof are provided. The DC-DC power supply includes a transformer, a primary circuit, a secondary circuit and a controller. The transformer includes a primary winding and a secondary winding. The primary circuit is connected with the primary winding and includes a plurality of first primary switches, and a plurality of second primary switches. The secondary circuit is connected with the secondary winding. The controller is configured to alternately control the operation of the first primary switches and the second primary switches for periodically adjusting a turn-off loss difference therebetween.

Classes IPC  ?

• 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
• H02M 3/00 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu

Abrégé

A bulk capacitor pre-charge control method includes providing a power converter coupled between a power source and a bulk capacitor, in a first pre-charge period, activating one switch selected from switches of the first rectifier and the second rectifier to charge the bulk capacitor, in a second pre-charge period following the first pre-charge period, activating two switches selected from the switches of the first rectifier and the second rectifier to charge the bulk capacitor, and in a third pre-charge period following the second pre-charge period, activating three switches selected from the switches of the first rectifier and the second rectifier to charge the bulk capacitor, wherein two of the three switches are synchronized with each other.

Classes IPC  ?

• H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p. ex. batterie tampon
• 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

Abrégé

A power apparatus applied in a solid state transformer structure includes an AC-to-DC conversion unit, a first DC bus, and a plurality of bi-directional DC conversion units. First sides of the bi-directional DC conversion units are coupled to the first DC bus. Second sides of the bi-directional DC conversion units are configured to form at least one second DC bus, and the number of the at least one second DC bus is a bus number. The bi-directional DC conversion units receive a bus voltage of the first DC bus and convert the bus voltage into at least one DC voltage, or the bi-directional DC conversion units receive at least one external DC voltage and convert the at least one external DC voltage into the bus voltage.

Classes IPC  ?

• 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
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
• H02M 1/00 - Détails d'appareils pour transformation
• 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

Abrégé

The present disclosure provides a package including a die, a first leadframe and a second leadframe. The first leadframe and the second leadframe are stacked and bonded together by using adhering substance to form a final leadframe. The die is bonded to the final leadframe. By using the package of the embodiments, the package includes appropriate signal transmission paths and multi-directional heat dissipation paths.

Classes IPC  ?

• H01L 23/495 - Cadres conducteurs
• H01L 21/48 - Fabrication ou traitement de parties, p. ex. de conteneurs, avant l'assemblage des dispositifs, en utilisant des procédés non couverts par l'un uniquement des groupes ou

Abrégé

A lithium-ion secondary battery is provided in the present disclosure, including a positive electrode with a first current collector and a first active material, a negative electrode, a separator between the positive electrode and the negative electrode, a field electrode at one side of the positive electrode opposite to the negative electrode, and a first insulating layer isolated between the positive electrode and the field electrode.

Classes IPC  ?

• H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
• H01M 4/66 - Emploi de matériaux spécifiés
• H01M 4/74 - Grillage ou matériau tisséMétal déployé
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
• H01M 10/0585 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure plats, c.-à-d. des électrodes positives plates, des électrodes négatives plates et des séparateurs plats
• H01M 10/44 - Méthodes pour charger ou décharger

Abrégé

A charging and discharging circuit is provided. By controlling the operations of the switches in a first bridge arm, a second bridge arm, a third bridge arm, a fourth bridge arm and a fifth bridge arm of the power conversion module, controller selectively enables first AC power and/or the first DC power to simultaneously transmit bidirectional energy through the EMI module and the power conversion module. The charging and discharging circuit of the present disclosure can achieve both the charging function and the discharging function by using a single circuit. In addition, the charging and discharging circuit of the present disclosure can provide uninterrupted power in different scenarios to meet multi-purpose needs.

Classes IPC  ?

• H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
• H02M 1/44 - Circuits ou dispositions pour corriger les interférences électromagnétiques dans les convertisseurs ou les onduleurs

Abrégé

A method for manufacturing a magnetic element, including the steps of: step S1, disposing a first vertical winding and a third vertical winding on or in a first circuit board and a second circuit board, respectively, and disposing a second vertical winding and a fourth vertical winding on or in a third circuit board; step S2, sequentially assembling the first circuit board, the first magnetic column, the third circuit board, the second magnetic column, and the second circuit board to form a pre-package; step S3, providing two second bonding layers bonded to an upper surface and a lower surface of the pre-package, respectively; step S4, providing a fourth circuit board and a fifth circuit board bonded to surfaces of the two bonding layers; and step S5, manufacturing a plurality of first conductive vias penetrating the two bonding layers, the fourth circuit board, and the fifth circuit board.

Classes IPC  ?

• 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 27/24 - Noyaux magnétiques
• H01F 27/28 - BobinesEnroulementsConnexions conductrices
• H01F 27/40 - Association structurelle de composants électriques incorporés, p. ex. fusibles
• H01F 41/04 - 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 pour la fabrication de bobines
• H05K 1/14 - Association structurale de plusieurs circuits imprimés
• H05K 3/40 - Fabrication d'éléments imprimés destinés à réaliser des connexions électriques avec ou entre des circuits imprimés

Abrégé

An LED driver and an operating method thereof are provided. The LED driver includes conversion circuits and a control circuit. The conversion circuits are configured to be electrically coupled to LED light sources for supplying power. The control circuit is configured to: configure the conversion circuits to generate output currents and output voltages; calculate output powers of the conversion circuits; sum up the output powers of the conversion circuits to obtain a total output power; and when it is determined that the total output power is greater than a power limit, configure at least one of the conversion circuits to reduce at least one of the output currents according to the power limit and according to at least one of the total output power and the output powers of the conversion circuits, so as to reduce the total output power to be less than or equal to the power limit.

Classes IPC  ?

• H05B 45/50 - Circuits pour faire fonctionner des diodes électroluminescentes [LED] réagissant aux dysfonctionnements des LED ou à un comportement indésirable des LEDCircuits pour faire fonctionner des diodes électroluminescentes [LED] sensibles à la vie des LEDCircuits de protection
• H05B 45/325 - Modulation de la largeur des impulsions [PWM]
• H05B 45/355 - Correction du facteur de puissance [PFC]Compensation réactive de la puissance
• H05B 45/3725 - Alimentation du circuit à découpage [SMPS]

Abrégé

A power conversion module includes a first bridge arm, a second bridge arm, a transformer and a rectifying circuit. An output positive terminal and an output negative terminal are electrically connected with a low-voltage and high-current load. The first bridge arm and the second bridge arm are electrically connected between an input positive terminal and an input negative terminal. The transformer includes a primary winding, a first secondary winding and a second secondary winding. The two terminals of the primary winding are electrically connected with a midpoint of the first bridge arm and a midpoint of the second bridge arm. An output inductor of the rectifying circuit is electrically connected between the winding midpoint and the output positive terminal. The input voltage is higher than 40V. The output voltage is lower than or equal to 2.2V.

Classes IPC  ?

• 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

Abrégé

An adapter with power delivery function includes a power transmission module, a first input connector, and an output connector. The power transmission module includes a bidirectional DC charging and discharging circuit, a bypass circuit, and a control circuit. The control circuit is coupled to the bidirectional DC charging and discharging circuit and the bypass circuit. The first input connector is coupled to the bidirectional DC charging and discharging circuit, the bypass circuit, and the control circuit. The first input connector includes a high voltage level pin, a low voltage level pin, and an identification pin. The output pin is coupled to the bidirectional DC charging and discharging circuit and the bypass circuit. The present disclosure further provides an electric vehicle and a wire with power delivery function.

Classes IPC  ?

• H01R 31/06 - Pièces intermédiaires pour joindre deux pièces de couplage, p. ex. adaptateur
• B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques

Abrégé

A heat dissipation structure is disposed between two busbars or disposed outside the busbar, so as to dissipate heat from the busbar. In an embodiment, the heat dissipation structure is disposed between two busbars, such that a single heat dissipation structure is used to dissipate heat from two busbars simultaneously, so as to reduce cost of the heat dissipation structure. Furthermore, an insulation member is disposed between the two busbars and/or disposed between the busbar and the heat dissipation structure to achieve electrical insulation.

Classes IPC  ?

• H01B 17/56 - Corps isolants
• H02B 1/20 - Schémas de barres omnibus ou d'autres fileries, p. ex. dans des armoires, dans les stations de commutation
• H02B 1/56 - RefroidissementVentilation
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A magnetic component structure with thermal conductive filler, including two magnetic cores combining together to form an inner accommodating space and at least one core opening, two plate portions connect each other through an inner leg structure and two outer leg structures, a bobbin sleeving on the inner leg structure, a coil winding on the bobbin, a bobbin housing surrounding the bobbin and the coil winding and form winding opening facing the at least one core opening, gaps are formed between the encasing structure constituted by the bobbin housing and the bobbin sleeving and the magnetic cores, a thermal conductive filler formed between the bobbin and the bobbin housing and encapsulating at least parts of the coil winding, and a cooling surface contacts the magnetic cores and the thermal conductive filler, the thermal conductive filler extends outwardly to contact the cooling surface through the opening and the winding opening.

Classes IPC  ?

• H01F 27/28 - BobinesEnroulementsConnexions conductrices
• H01F 27/26 - Fixation des parties du noyau entre ellesFixation ou montage du noyau dans l'enveloppe ou sur un support
• 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

Abrégé

The present disclosure provides a magnetic element and a power module. The power module includes: at least one magnetic element and k first switch unit; the magnetic element includes: a magnetic core including a first surface and a second surface arranged oppositely; and n first winding and m second winding arranged in the magnetic core; n is greater than or equal to m; each first winding is arranged adjacent to a second winding; an effective cross-sectional area of each first winding is greater than that of each second winding; each first winding includes a first end for leading out a first pin on the first surface and a second end for leading out a second pin on the second surface; k first switch unit is arranged on the first surface, and each first switch unit is electrically connected to the first pin of the first winding.

Classes IPC  ?

• H01F 38/14 - Couplages inductifs
• H01F 3/08 - Noyaux, culasses ou induits en poudre
• H01F 5/04 - Dispositions des connexions électriques aux bobines, p. ex. fils de connexion
• H01F 27/00 - Détails de transformateurs ou d'inductances, en général
• H01F 27/26 - Fixation des parties du noyau entre ellesFixation ou montage du noyau dans l'enveloppe ou sur un support
• H01F 27/40 - Association structurelle de composants électriques incorporés, p. ex. fusibles
• H01F 37/00 - Inductances fixes non couvertes par le groupe

Abrégé

A driving circuit includes a driver, a negative voltage generating circuit and a negative voltage control circuit. The driver receives a first control signal and generates a first driving signal. The negative voltage generating circuit includes a first terminal, a second terminal, a first resistor, a first capacitor and a second resistor. A first switching signal is output from the second terminal to control the operation of one part of a plurality of main switches. The negative voltage control circuit includes a diode and an auxiliary switch. When the first control signal is transitioned from a high level state to a low level state, the first switching signal is transitioned from a positive voltage to a negative voltage. Following the dead time, the first switching signal is transitioned from the negative voltage to a zero voltage.

Classes IPC  ?

• H02M 1/088 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques pour la commande simultanée de dispositifs à semi-conducteurs connectés en série ou en parallèle
• 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

Abrégé

An integrated cold plate cooling device is disclosed and includes a base plate and a cover plate. The base plate includes a top surface, a bottom surface and plural heat dissipation fins. The top surface and the bottom surface are arranged opposite to each other in a first direction, the bottom surface is thermally coupled to plural heat sources, and the plural heat dissipation fins are arranged on the top surface. The cover plate includes an inlet, an outlet and plural turbulence generators. When the cover plate is assembled to the top surface of the base plate along the first direction, plural chambers are formed. The plural chambers are configured to respectively accommodate the plural heat dissipation fins and in communication between the inlet and the outlet. The plural turbulence generators are correspondingly arranged between the plural heat dissipation fins and the inlet.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• H05K 1/02 - Circuits imprimés Détails

Abrégé

A multifunctional rack cabinet includes a support rack, an outer door, an electric control box, a first inner door, and a second inner door. The outer door is pivotally connected to an edge of the support rack. The electric control box is connected to the support rack and includes a main switch, at least one control unit, at least one pump switch, at least one sensor interface, and plural electrical components. The first inner door is pivotally connected to an edge of the electric control box and covers the control unit, the pump switch, and the sensor interface, wherein the main switch is at least partially exposed through the first inner door. The second inner door covers the electrical components. The main switch, the control unit, the pump switch, and the sensor interface are at least partially exposed through the second inner door.

Classes IPC  ?

• H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti

Abrégé

The present disclosure discloses an air guide cover and an electronic device. The air guide cover includes a heat conduction member and a first heat dissipation member forming a circumferentially surrounded space; wherein at least a part of the heat conduction member is in contact with a heating element, and the air guide cover dissipates heat of the heating element. The air guide cover of the present disclosure may act as heat sinks of the heating element, and has a large heat dissipation area and strong heat dissipation capability, and the air guide cover also has effect of directing and guiding air from the heat sink.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

The present disclosure provides an integrally-formed inductor including a magnetic core, a first winding and a second winding, the magnetic core includes a first surface, a second surface, and a side surface; the first winding includes a first longitudinal portion, a second longitudinal portion, and a first connecting portion. The first longitudinal portion extends to the first surface, forming a first pin, and the second longitudinal portion extends to the second surface, forming a second pin, the second winding includes a third longitudinal portion, a fourth longitudinal portion, and a second connecting portion, and the first and second connecting portions extend on planes forming non-zero angles with corresponding longitudinal portion.

Classes IPC  ?

• H01F 27/29 - BornesAménagements de prises
• H01F 27/24 - Noyaux magnétiques
• H02M 3/04 - 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

Abrégé

An Ethernet power source equipment (PSE) is coupled to a load device, and the Ethernet PSE includes a power supply device, an output control circuit, a path control circuit, and a control module. When the output control circuit detects that the load device is not coupled to an output terminal of the Ethernet PSE, the path control circuit disconnects a power supplying path between the output terminal to the control module, and the output control circuit adjusts an output voltage to a first voltage so that the control module enters a disabled state. When the output control circuit detects that the load device is coupled to the output terminal, the path control circuit short-circuits the power supplying path, and the output control circuit adjusts the output voltage to a second voltage so that the control module enters an enabled state.

Classes IPC  ?

• H04L 12/10 - Dispositions pour l'alimentation
• H04L 12/40 - Réseaux à ligne bus

Abrégé

An electromagnetic brake includes a stator and a rotor. The first bottom is connected between one side of the outer ring portion and one side of the inner ring portion. The first ring concave is formed by the outer ring portion, the inner ring portion and the first bottom. The two coils are disposed within the first ring concave. The friction portion is disposed on one side of the outer casing away from the first bottom. The permanent magnet is disposed around the inner friction element, and disposed between the inner friction element and the outer friction element. The rotor is pivotally connected with the stator and includes an armature. The armature is disposed on one side of the friction portion away from the outer casing. The friction portion and the permanent magnet are disposed between the armature and the outer casing.

Classes IPC  ?

• H02K 49/10 - Embrayages dynamo-électriquesFreins dynamo-électriques du type à aimant permanent

Abrégé

An impeller wheel includes a top ring, a bottom disc, and a plurality of fan blades. The inner edge of the top ring surrounds an air inlet. The top ring has a curved structure. The inner edge of the bottom disc surrounds an opening. The bottom disc has a curved structure. The fan blade has a front edge, a top edge, a rear edge, and a bottom edge. The top edge and the bottom edge are fixed to the top ring and the bottom disc, respectively. The top edge and the top ring define an upper connection line, and the bottom edge and the bottom disc define a lower connection line. When viewed from above, the upper and lower connection lines intersect, and a portion of the fan blade is joined with the upper and lower connection lines so as to form a contour line.

Classes IPC  ?

• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
• F04D 17/06 - Pompes hélicocentrifuges
• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage

Abrégé

A magnetic component includes a primary winding, a secondary winding and at least one tertiary winding stacked with each other to form a symmetrical inductance structure or an asymmetrical inductance structure. Through the relationship of the distances between the primary winding, the secondary winding and the at least one tertiary winding of the symmetrical inductance structure, the leakage inductance can be balanced, the tolerance can be stabilized, the reverse current can be eliminated, the AC loss of the tertiary winding can be reduced, and/or the total loss can be reduced. Through the relationship of the distances between the primary winding, the secondary winding and the at least one tertiary winding of the asymmetrical inductance structure, the leakage inductance can be adjusted more flexibly, the tolerance can be stabilized, and the couple energy can be reduced.

Classes IPC  ?

• H01F 27/28 - BobinesEnroulementsConnexions conductrices
• H01F 27/24 - Noyaux magnétiques

Abrégé

A method to form a plurality of inductors in a single process by stacking multiple magnetic sheets, wherein each sheet is made to form a particular part in quantities, which can be a base part, a pillar part, a hollow part, or a cover part, for forming a magnetic body of an inductor.

Classes IPC  ?

• 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 1/22 - Aimants ou corps magnétiques, caractérisés par les matériaux magnétiques appropriésEmploi de matériaux spécifiés pour leurs propriétés magnétiques en matériaux inorganiques caractérisés par leur coercivité en matériaux magnétiques doux métaux ou alliages sous forme de particules, p. ex. de poudre comprimées, frittées ou agglomérées
• H01F 27/255 - Noyaux magnétiques fabriqués à partir de particules
• H05K 1/09 - Emploi de matériaux pour réaliser le parcours métallique
• H05K 1/11 - Éléments imprimés pour réaliser des connexions électriques avec ou entre des circuits imprimés
• H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés
• H05K 3/341 -
• H05K 3/40 - Fabrication d'éléments imprimés destinés à réaliser des connexions électriques avec ou entre des circuits imprimés

Abrégé

The present disclosure relates to the technical field of electronic power, and in particular to a server, which includes a data processing apparatus and a first heatsink, the data processing apparatus includes a load group and a power supply module group, the load group includes at least two loads, and the power supply module group supplies power to the loads; the first heatsink is thermally connected to the power supply module group, at least part of a projection of the first heatsink in a first plane is located outside a load region, the first plane is parallel to an upper surface of the load, the load region is a minimum outer contour projection region of the load group that can cover all loads in the first plane.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A power supply includes a power converter, a feedback circuit, a control signal generating circuit and a compensating circuit. The power converter generates an output voltage at an output node. The feedback circuit generates a feedback signal according to an output node voltage. The control signal generating circuit provides a control signal to the power converter according to the feedback signal. The compensating circuit includes a reference voltage circuit, a voltage dividing circuit and a switching circuit. When the output node voltage is decreased from the first voltage level to a level threshold or decreased from the first voltage level by an amplitude threshold, the switching circuit is conducted to couple the feedback circuit to the voltage dividing circuit, so the feedback circuit sets the control signal generating circuit to increase a duty cycle of the control signal and/or decrease a frequency of the control signal.

Classes IPC  ?

• 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 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique

Abrégé

A power supply unit includes a power conversion circuit, an output control circuit, a current detection circuit, a first feedback circuit, a coupling circuit and a power conversion control circuit. The power conversion circuit receives an input voltage. The first feedback circuit receives a first voltage detection signal and a first current detection signal to generate a first control signal. The coupling circuit generates a power conversion control signal based on the first control signal. The power conversion control circuit generates a conversion signal based on the power conversion control signal. When a control terminal of the output control circuit is coupled to a first control voltage, the output control circuit sets the first control signal to generate a first output voltage. When the control terminal is coupled to a second control voltage, the output control circuit sets the first control signal to generate a second output voltage.

Classes IPC  ?

• H05B 45/14 - Commande de l'intensité de la lumière à l'aide d'une rétroaction électrique provenant de LED ou de modules de LED
• H05B 45/34 - Stabilisation de la tensionMaintien d'une tension constante

Abrégé

An optical phased array chip includes: a light-emitting unit, configured to generate an optical emission signal; a beam-splitting unit, connected to the light-emitting unit, and configured to transmit the optical emission signal to an optical antenna unit and receive and transmit a diffusely reflected optical return signal to a photodetector unit; the optical antenna unit, connected to the beam-splitting unit, configured to transmit the optical emission signal, and configured to receive and transmit the diffusely reflected optical return signal to the beam-splitting unit; the photodetector unit, connected to the beam-splitting unit, and configured to receive and transmit the diffusely reflected optical return signal to a signal processing unit; and the signal processing unit, connected to the photodetector unit, and configured to receive the diffusely reflected optical return signal in an electric current signal manner converted by the photodetector unit and generate a sensing information.

Classes IPC  ?

• G01S 7/481 - Caractéristiques de structure, p. ex. agencements d'éléments optiques
• G01S 7/4914 - Réseaux des détecteurs, p. ex. portes de transfert de charge
• G02F 1/21 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur par interférence
• G02F 1/29 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de la position ou de la direction des rayons lumineux, c.-à-d. déflexion

Abrégé

A grinding adjusting method of an edge grinding machine, wherein the edge grinding machine includes a grinding carrier placing a sheet material, a grinding wheel, and an image sensing module. The grinding adjusting method includes capturing a sensing image by the image sensing module and detecting a sheet-material part and a grinding-wheel part of the sensing image; computing a first value of the sheet-material part and a second value of the grinding-wheel part; computing an adjusting value according to the first value and the second value; and adjusting a height of the grinding wheel or a height of the grinding carrier by using the adjusting value.

Classes IPC  ?

• B24B 9/08 - Machines ou dispositifs pour meuler les bords ou les biseaux des pièces ou pour enlever des bavuresAccessoires à cet effet caractérisés par le fait qu'ils sont spécialement étudiés en fonction des propriétés de la matière propre aux objets à meuler de matière inorganique non métallique, p. ex. de la pierre, des céramiques, de la porcelaine du verre
• B24B 49/12 - Appareillage de mesure ou de calibrage pour la commande du mouvement d'avance de l'outil de meulage ou de la pièce à meulerAgencements de l'appareillage d'indication ou de mesure, p. ex. pour indiquer le début de l'opération de meulage impliquant des dispositifs optiques

Abrégé

A power supply includes a housing, an output voltage control line, a power conversion circuit, an output control circuit, a current detection circuit, a feedback circuit, a coupling circuit and a power conversion control circuit. The power conversion circuit receives an input voltage. The feedback circuit receives a detection voltage signal and a detection current signal to correspondingly generate a control signal. The coupling circuit generates a power conversion control signal based on the control signal. The power conversion control circuit generates a conversion signal based on the power conversion control signal. When the output voltage control line is conducted, the output control circuit sets the power conversion circuit to correspondingly generate a first output voltage. When the output voltage control line is not conducted, the output control circuit sets the power conversion circuit to correspondingly generate a second output voltage.

Classes IPC  ?

• H02M 1/00 - Détails d'appareils pour transformation
• H02M 7/00 - 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
• H02M 7/04 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques
• H05B 45/37 - Circuits de conversion

Abrégé

An electronic device to calculate input power input to a resonant tank in a resonant circuit includes a bandpass filter, a phase detection circuit, a peak detection circuit, and a processor. The bandpass filter receives a resonant current input to the resonant tank, and filters the resonant current to generate a first baseband current. The phase detection circuit calculates a phase difference between the first baseband current and a resonant tank voltage input to the resonant tank. The peak detection circuit generates a baseband current peak value according to the first baseband current. The processor performs a fast Fourier transform on the resonant tank voltage to obtain a resonant tank baseband voltage. The processor calculates the input power according to the resonant tank baseband voltage, the baseband current peak value, and the phase difference.

Classes IPC  ?

• G01R 21/06 - Dispositions pour procéder aux mesures de la puissance ou du facteur de puissance par mesure du courant et de la tension
• G01R 25/00 - Dispositions pour procéder aux mesures de l'angle de phase entre une tension et un courant ou entre des tensions ou des courants
• H02M 5/458 - 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 triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs

Abrégé

An IC package structure with connections is provided in the present disclosure, including a die bonded to a leadframe, a plurality of connections bonded to the leadframe, a molding compound formed on the leadframe, a metal layer formed on the molding compound and electrically connecting with the connections, and an electronic component mounted on the metal layer.

Classes IPC  ?

• H01L 23/495 - Cadres conducteurs
• H01L 21/56 - Encapsulations, p. ex. couches d’encapsulation, revêtements
• H01L 23/00 - Détails de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
• H01L 23/31 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par leur disposition
• H01L 25/16 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant de types couverts par plusieurs des sous-classes , , , , ou , p. ex. circuit hybrides
• H01L 25/18 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant de types prévus dans plusieurs différents groupes principaux de la même sous-classe , , , , ou
• H10D 80/30 - Ensembles de plusieurs dispositifs comprenant au moins un dispositif couvert par la présente sous-classe l’au moins un dispositif étant couvert par les groupes , p. ex. des ensembles comprenant des puces de processeur à circuit intégré

Abrégé

A double-layer antenna, used for an optical phased array chip, the double-layer antenna including: a substrate; a bottom protective layer, disposed above the substrate; a light guide layer, disposed above the bottom protective layer; a grating layer, disposed above the light guide layer, and including a plurality of grating bodies; the grating bodies arranged periodically with a spacing along a first axis of the light guide layer; each of the grating bodies disposed along a second axis of the light guide layer; and a top protective layer, disposed above the light guide layer and the grating bodies. A refractive index of the grating layer and a refractive index of the light guide layer are different.

Classes IPC  ?

• G02B 6/42 - Couplage de guides de lumière avec des éléments opto-électroniques
• G01S 7/481 - Caractéristiques de structure, p. ex. agencements d'éléments optiques
• G01S 17/02 - Systèmes utilisant la réflexion d'ondes électromagnétiques autres que les ondes radio