Abstract: A magnetic assembly is disclosed. The magnetic assembly includes a first magnetic core, a second magnetic core and a first series winding. The first magnetic core has a first top surface, a first bottom surface, a first sidewall, a second sidewall, at least one first sidewall through-hole and at least one second sidewall through-hole. The second magnetic core is connected to the first top surface of the first magnetic core. The first series winding has a first upper winding set, a first sidewall winding set, and a second sidewall winding set disposed on the first top surface, the first sidewall and the second sidewall respectively. The upper winding set is connected to the lower winding set via the first sidewall winding set and the second sidewall winding set is further connected to the lower winding set, so as to form the first series winding around the first magnetic core.

Abstract: A power supply converter and a method for manufacturing the same are provided. The power supply converter includes an inductance component and a power component, wherein the inductance component includes: a first magnetic substrate, provided with a first via, the first magnetic substrate including a first surface and a second surface, and a first pin being provided on the first surface; a second magnetic substrate, provided with a second via, and having a second surface provided with a second pin; an inductance coil, provided between the first surface and the second surface and having a first end and a second end formed at the vias and connected to the first and second pin, respectively; and a filling part, at least partly filling the vias, wherein the power component and the inductance component are stacked, are in contact and are coupled to each other.

Abstract: A converter module includes: a system board; and an isolated rectifier unit connected with the system board via at least one pin, the isolated rectifier unit including: a magnetic core including at least one core column parallel to the system board and two cover plates provided at both ends of the core column; and multiple carrier board units provided between the two cover plates and perpendicular to the system board, wherein the carrier board unit includes at least one via hole, at least one primary winding and at least one secondary winding; and wherein the at least one core column passes through the via hole of the carrier board unit, the pin is provided at one side of at least one of the carrier board units close to the system board and configured to connect the carrier board units with the system board.

Abstract: A power integrated module, including at least one first bridge formed in a chip, wherein the first bridge includes: a first upper bridge switch, formed by a plurality of first sub switches formed in the chip connected in parallel, and including a first, a second and a control end; a first lower bridge switch, formed by a plurality of second sub switches formed in the chip connected in parallel, and including a first, a second and a control end; a first electrode, connected to the first end of the first upper bridge switch; a second electrode, connected to the second end of the first lower bridge switch; and a third electrode, connected to the second end of the first upper bridge switch and the first end of the first lower bridge switch, wherein the first, the second and the third electrode are bar-type electrodes arranged side by side.

Abstract: A power module is disclosed. The power module includes a magnetic assembly, a switching device, a first upper conductive element and a first sidewall conductive element. The magnetic assembly has a first magnetic core, a second magnetic core and a receiving space. The first magnetic core has a first top surface, a first bottom surface and at least one first sidewall through-hole. The second magnetic core is coupled with the first magnetic core. The receiving space is formed between the first magnetic core and the second magnetic core. The switching device is disposed on the first top surface and accommodated in the receiving space. The first upper conductive element is disposed on the first top surface of the first magnetic core and electrically connected to the switch component. The first sidewall conductive element is disposed in the first sidewall through-hole and electrically connected to the first upper conductive element.

Abstract: The embodiments of the present disclosure relate to a power package module of multiple power chips and a method of manufacturing a power chip unit. The power package module of multiple power chips includes: a power chip unit including at least two power chips placed in parallel and a bonding part bonding the two power chips; a substrate supporting the power chip unit and including a metal layer electronically connecting with the power chip unit; and a sealing layer isolating the power chip unit on the substrate from surroundings to seal the power chip unit; the bonding part and the sealing layer are made from different insulated material, the distance of a gap between the two power chips placed in parallel is smaller than or equal to a preset width, and the bonding part is filled in the gap, insulatedly bonding the two power chips placed in parallel.

Abstract: The present disclosure provides a power converter, including: a pre-stage circuit, configured to receive an input voltage and convert the input voltage to a bus voltage; and plurality of post-stage circuits, connected in parallel to an output terminal of the pre-stage circuit, and configured to receive the bus voltage from the pre-stage circuit and each converts the bus voltage to an output voltage. The power converter provided by the present disclosure can effectively solve the problems of isolation and the wide range of operating voltage, and can take both of high efficiency and high power density into consideration.

Abstract: The present disclosure provides an assembly structure for providing power for a chip and an electronic device using the same. The assembly structure includes: a circuit board, configured to provide a first electrical energy; a chip; and a first power converting module, configured to electrically connect the circuit board and the chip, convert the first electrical energy to a second electrical energy, and supply the second electrical energy to the chip, wherein the circuit board, the chip and the first power converting module are stacked to form the assembly structure. The present disclosure assembles a power converting module with a circuit board and a chip in a stacking manner, which may shorten a current path between the power converting module and the chip, reduce current transmission losses, improve efficiency of a system, reduce space occupancy and save system resource.

Abstract: A power converter device, includes switching devices and a controller, to realize conversion between power supplies by controlling on and off the switching devices via the controller. The switching devices include: at least one normally-on type switching device and at least one normally-off type switching device both having an operation frequency greater than 1 kHz and connected in series. The controller outputs a first and second control signal to correspondingly control the normally-on type switching device and the normally-off type switching device to control the normally-off type switching device to be turned on after the normally-on type switching device to be turned off. The present disclosure uses the normally-off type switching device originally disposed in the circuit, having a voltage blocking ability, to realize directly usage of the normally-on type switching device to improve efficiency and power density of switching power supply.

Abstract: The present disclosure generally relates to a test method and system thereof. The test method comprises: outputting a test control signal to a test power supply of the circuit under test so as to adjust an input signal of the circuit under test so that a gain range of the circuit under test in an abnormal operating state is the same as that of the circuit under test in a normal operating state when the circuit under test enters into the abnormal operating state. The present disclosure may meet requirements for equipment test without sacrificing the efficiency of circuits in normal operating state or adding complexity circuit.

Abstract: A resource releasing method, apparatus, and system. The method includes receiving, by a resource management server, a resource release request input by a user, where the request carries attribute information of a resource, and the resource is in a booked state; determining, by the resource management server, the corresponding resource according to the attribute information; sending, by the resource management server to a terminal, an instruction to acquire a current usage status of the resource; receiving, by the resource management server, current usage status information returned according to the instruction by the terminal; and releasing, by the resource management server, the resource when it is determined, according to the current usage status information, that the resource is not in use.

Abstract: Embodiments of the present invention provide a method, system and device for conference switching, relating to communications technologies, which solve the technical problem in the prior art that the operation during conference switching is complicated and user experience is poor. The method embodiments of the present invention include: receiving, from a conference terminal, a switching request message requesting switching to a destination conference, where the switching request message includes information of the destination conference; and determining, according to the switching request message, to switch to the destination conference indicated by the information, and performing the process of switching to the destination conference. The embodiments of the present invention are mainly applicable to the field of multimedia communication technologies.

Abstract: The configurations of a parallel-connected resonant converter circuit and a controlling method thereof are provided in the present invention. The proposed circuit includes a plurality of resonant converters, each of which has two input terminals and two output terminals, wherein all the two input terminals of the plurality of resonant converters are electrically series-connected, and all the two output terminals of the plurality of resonant converters are electrically parallel-connected.

Abstract: The configurations of a bridgeless PFC circuit system and a controlling method thereof are provided. The proposed system includes a bridgeless PFC circuit including a first bridge arm having a first and a second terminals and a first middle point, a second bridge arm having a first and a second terminals and a second middle point, and a bidirectional switch coupled between the first middle point and the second middle point, and an inductor coupled between the first middle point and an AC power source coupled to the second middle point, and a current sensing circuit including a first current transformer sensing a first current flowing through the bidirectional switch, which having a primary side winding coupled to the bidirectional switch and a first and a second secondary side windings, and a switching device coupled to the two secondary side windings.

Abstract: The configurations of a resonant converter system and a controlling method thereof are provided. The proposed resonant converter system includes a resonant converter and a hybrid control apparatus coupled to the resonant converter for generating a driving signal to adjust a phase angle and a frequency of the resonant converter such that the resonant converter would reach a relatively lower voltage gain and have a relatively lower loss during an abnormal operation.

Abstract: The configurations of an H-bridge circuit and a controlling method thereof are provided in the present invention. The proposed circuit includes an H-bridge having a first and a second bridge arms, each of which has a middle point, and a bidirectional switch connected to the two middle points, a bootstrap circuit providing a bootstrap voltage, a driving circuit receiving the bootstrap voltage and driving the bidirectional switch, and an energy compensation circuit coupled to the H-bridge, the bootstrap circuit and the driving circuit, and providing a compensation energy to the bootstrap circuit.

Abstract: The configurations of a resonant converter system and a controlling method thereof are provided. The proposed resonant converter system includes a resonant converter receiving an input voltage for outputting an output voltage, a rectifying device having a first rectifying switch and a synchronous rectification control circuit coupled to the resonant converter and including a signal generation apparatus generating a weighted turn-off signal to turn off the first rectifying switch at a zero crossing point of a first current flowing through the first rectifying switch.

Abstract: The configurations of a DC/DC resonant converter and a controlling method thereof are provided. The proposed converter includes an over-current protection apparatus including a first switch element having a first and a second terminals, and a first voltage element having a negative terminal coupled to a positive terminal of a DC input voltage source and a positive terminal coupled to the second terminal of the first switch element.

Abstract: The configurations of a parallel-connected resonant converter circuit and a controlling method thereof are provided in the present invention. The proposed circuit includes a plurality of resonant converters, each of which has two input terminals and two output terminals, wherein all the two input terminals of the plurality of resonant converters are electrically series-connected, and all the two output terminals of the plurality of resonant converters are electrically parallel-connected.

Abstract: The configurations of a parallel-connected resonant converter circuit and a controlling method thereof are provided in the present invention. The proposed circuit includes a plurality of resonant converters, each of which has two input terminals and two output terminals, wherein all the two input terminals of the plurality of resonant converters are electrically series-connected, and all the two output terminals of the plurality of resonant converters are electrically parallel-connected.