Abstract: A magnetic device includes a magnetic core assembly, a primary winding, a first secondary winding and a second secondary winding. The magnetic core assembly includes a first magnetic cover, a second magnetic cover, a first magnetic leg, a second magnetic leg, a third magnetic leg and a fourth magnetic leg. The primary winding is wound around the first magnetic leg and the third magnetic leg. A first terminal of the first secondary winding is disposed between the first magnetic leg and the second magnetic leg. A second terminal of the first secondary winding is disposed between the third magnetic leg and the fourth magnetic leg. A first terminal of the second secondary winding is disposed between the first magnetic leg and the fourth magnetic leg. A second terminal of the second secondary winding is disposed between the second magnetic leg and the third magnetic leg.

Abstract: A magnetic device includes a magnetic core assembly, a first winding and a second winding. The magnetic core assembly includes four magnetic legs and two winding grooves. An input terminal of the first winding is disposed within a first part of the first winding groove between the first magnetic leg and the second magnetic leg. An output terminal of the first winding is disposed within a second part of the second winding groove between the third magnetic leg and the fourth magnetic leg. An input terminal of the second winding is disposed within a first part of the second winding groove between the first magnetic leg and the fourth magnetic leg. An output terminal of the second winding is disposed within a second part of the first winding groove between the second magnetic leg and the third magnetic leg.

Abstract: A voltage regulator module includes a first circuit board assembly, a second circuit board assembly and a magnetic core assembly. The first circuit board assembly includes a first printed circuit board. The second circuit board assembly includes a second printed circuit board, at least one output capacitor, a plurality of ball grid arrays and at least one bonding pad. The second printed circuit board includes a first surface and a second surface. The plurality of ball grid arrays are disposed on the second surface of the second printed circuit board. The at least one bonding pad is arranged beside the first surface of the second printed circuit board. The magnetic core assembly is arranged between the first circuit board assembly and the second circuit board assembly and electrically connected with the at least one bonding pad. The at least one output capacitor is embedded within the second circuit board assembly.

Abstract: A power converter module includes a multilayer printed circuit board, a switching device, a magnetic core element and a winding via. The multilayer printed circuit board has a first surface, a second surface and an inside layer. The multilayer printed circuit board includes a plurality of copper layers. The magnetic core element is disposed in the inside layer and includes a hole. One end of the winding via is electrically connected to the switching device, and the other end of the winding via is electrically connected to the second surface. The winding via penetrates through the hole and forms a magnetic assembly. An amount of the copper layers on a first side of the magnetic core element close to the first surface of the multilayer printed circuit board is at least two more than a second side of the magnetic core element.

Abstract: A power conversion circuit includes a first terminal, a second terminal, a first switching conversion unit, a second switching conversion unit, a flying capacitor and a magnetic element. The first switching conversion unit includes a first switch and a third switch. The second switching conversion unit includes a second switch and a fourth switch. The magnetic element includes two first windings and a second winding. A first one of the two first windings is serially connected between the flying capacitor and the second terminal. A second one of the two first windings is serially connected between the second switch and the second terminal. The second winding is serially connected with the flying capacitor and the first one of the two first windings. A turn ratio between the second winding, the first one of the two first windings and the second one of the two first windings is N:1:1.

Abstract: A power conversion module includes an input port, an output port, a full-bridge switching circuit, a magnetic device, an energy storage capacitor set and a rectifier circuit. The magnetic device includes a first coupled winding pair and a second coupled winding pair. The first coupled winding pair includes a first winding and a second winding, which are coupled to each other. The second coupled winding pair includes a third winding and a fourth winding, which are coupled to each other. The first winding and the third winding are connected between a first bridge arm and a second bridge arm of the full-bridge switching circuit. The energy storage capacitor set is electrically connected with the input port, and electrically connected with the first winding and the third winding. The rectifier circuit is electrically connected with the second winding, the fourth winding and the output port.

Abstract: A magnetic device includes a magnetic core assembly, a first winding and a second winding. The magnetic core assembly includes a top surface, a bottom surface, a first lateral side, a second lateral side, a third lateral side, a fourth lateral side, a middle leg and two lateral legs. A first winding groove is defined by the middle leg and one lateral leg. A second winding groove is defined by the middle leg and the other lateral leg. Two opposite ends of the first winding groove are respectively exposed to the first lateral side and the fourth lateral side. Two opposite ends of the second winding groove are respectively exposed to the second lateral side and the third lateral side. At least a part of the first winding is disposed within the first winding groove. At least a part of the second winding is disposed within the second winding groove.

Abstract: The present disclosure is related to a power module power structure and an assembling method thereof. The power module structure includes a first printed-circuit-board (PCB) assembly, a second PCB assembly, and a conductive connection component. The first PCB assembly includes a first circuit board, a power switch and a magnetic component. The first circuit board includes a first side, a second side and a through hole. The power switch is disposed on the first circuit board. The magnetic component includes a first magnetic core and a second magnetic core fastened on the first circuit board through the through hole. The second PCB assembly includes a second circuit board having a third side, a fourth side and at least one opening. The second magnetic core is exposed through the opening. The conductive connection component is disposed and electrically connected between the first PCB assembly and the second PCB assembly.

Abstract: A voltage regulator module includes a circuit board, a metallic winding assembly, a switching circuit and a magnetic core assembly. The circuit board includes an accommodation space, a first surface and a second surface. The accommodation space is formed within the circuit board and in communication with a first opening and a second opening. The metallic winding assembly includes third opening. A projection region of the switching circuit and a projection region of the metallic winding assembly on the first surface are partially overlapped with each other. The magnetic core assembly includes an upper core, a lower core and a lateral leg. The upper core and the lower core are disposed on the circuit board. The lateral leg is penetrated through the first opening, the third opening and the second opening. An inductor is defined by the magnetic core assembly and the metallic winding assembly collaboratively.

Abstract: The present disclosure provides a control method of a power conversion device including first and second bridge arms and two transformers. The first bridge arm includes the first, second and third switches serially connected. The second bridge arm includes the fourth, fifth and sixth switches serially connected. The control method includes: controlling the first and fourth switches to operate with duty cycle and being 180 degrees out of phase; controlling control signals of the third and fourth switches to be complementary, and controlling control signals of the sixth and first switches to be complementary; when the duty cycle being less than or equal to 0.5, controlling the second and fourth switches to switch synchronously, controlling the fifth and first switches to switch synchronously; and when the duty cycle being greater than 0.5, controlling the second and sixth switches to switch synchronously, controlling the fifth and third switches to switch synchronously.

Abstract: The present disclosure provides a power conversion device including an input end having positive and negative input terminals, two bridge arms, two transformers and an output capacitor. Each bridge arm is connected to the input end in parallel, and includes three switches coupled in series. Two terminals of one switch are electrically connected to the positive input terminal and a primary node respectively. Two terminals of another switch are electrically connected to the negative input terminal and a secondary node respectively. Each transformer includes primary and secondary windings coupled to each other. Two primary windings are serially coupled between two primary nodes. Two secondary windings are serially coupled between two secondary nodes. Two terminals of the output capacitor are electrically connected to output positive and negative terminals respectively.

Abstract: 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.

Abstract: A power conversion circuit includes a first terminal, a second terminal, a first switching conversion unit, a second switching conversion unit, a flying capacitor and a magnetic element. The first switching conversion unit includes a first switch and a third switch. The second switching conversion unit includes a second switch and a fourth switch. The magnetic element includes two first windings and a second winding. A first one of the two first windings is serially connected between the flying capacitor and the second terminal. A second one of the two first windings is serially connected between the second switch and the second terminal. The second winding is serially connected with the flying capacitor and the first one of the two first windings. A turn ratio between the second winding, the first one of the two first windings and the second one of the two first windings is N:1:1.

Abstract: A power conversion system includes a power conversion circuit and a start-up circuit. The power conversion circuit includes an output capacitor, a first switching unit, a second switching unit, a flying capacitor and a magnetic element. The second switching unit includes two switch groups. The flying capacitor is connected between a first terminal and a second terminal of the power conversion circuit. The magnetic element includes two first windings that are electromagnetically coupled with each other. A first one of the two first windings is electrically connected between one switch group and the second terminal of the power conversion circuit. A second one of the two first windings is electrically connected between the other switch group and the second terminal of the power conversion circuit. The start-up circuit includes a third winding and an inductor. The third winding is electromagnetically coupled with the first windings.

Abstract: The present disclosure is related to a power module power structure and an assembling method thereof. The power module structure includes a first printed-circuit-board (PCB) assembly, a second PCB assembly, and a conductive connection component. The first PCB assembly includes a first circuit board, a power switch and a magnetic component. The first circuit board includes a first side, a second side and a through hole. The power switch is disposed on the first circuit board. The magnetic component includes a first magnetic core and a second magnetic core fastened on the first circuit board through the through hole. The second PCB assembly includes a second circuit board having a third side, a fourth side and a hollow slot passing therethrough. The second magnetic core is exposed through the hollow slot. The conductive connection component is disposed and electrically connected between the first PCB assembly and the second PCB assembly.

Abstract: A voltage regulator module includes a circuit board, a first component and a switching circuit assembly. The circuit board includes a first surface, a second surface, a concave structure and a contact pad. The first surface and the second surface are opposed to each other. The concave structure is disposed in the circuit board and concavely formed on the second surface. The contact pad is formed on the second surface and served as at least one of a positive output terminal, a negative output terminal and a positive input terminal. The concave structure and the contact pad are misaligned to each other. The first component is at least partly disposed within the concave structure. The switching circuit assembly is disposed on the first surface and electrically connected with the contact pad and the first component.

Abstract: A power converter module includes a multilayer printed circuit board, a switching device, a magnetic core element and a winding via. The multilayer printed circuit board has a first surface, a second surface and an inside layer. The multilayer printed circuit board includes a plurality of copper layers. The magnetic core element is disposed in the inside layer and includes a hole. One end of the winding via is electrically connected to the switching device, and the other end of the winding via is electrically connected to the second surface. The winding via penetrates through the hole and forms a magnetic assembly. An amount of the copper layers on a first side of the magnetic core element close to the first surface of the multilayer printed circuit board is at least two more than a second side of the magnetic core element.

Abstract: A power converter includes N power conversion units. Each power conversion unit includes a main switching circuit, a transformer, a synchronous rectifier circuit, an input signal terminal and a signal processor. A primary winding of the transformer is connected with the main switching circuit. The synchronous rectifier circuit is connected with a secondary winding of the transformer. The input signal terminal receives a first PWM control signal. The signal processor generates first and second PWM driving signals to drive the main switching circuit according to the first PWM control signal, and a phase difference between the first and second PWM driving signals is (180±?) degree. The signal processor generates third and fourth PWM driving signals to drive the synchronous rectifier circuit according to the first PWM control signal, and a phase difference between the third and fourth PWM driving signals is (180±?) degree.

Abstract: A power conversion system is provided. The power conversion system includes a power conversion circuit and N clamping circuits. The power conversion circuit includes an input port, an output port, N switching power conversion units and N?1 storage device. The switching power conversion unit includes a first switch and a second switch. N is an integer larger than 1. Two ends of the storage device have a first node and a second node respectively. The clamping circuit includes an absorbing capacitor and an absorbing diode and has a first terminal, a second terminal and a third terminal. The first and second terminals are electrically connected to two ends of the corresponding second switch respectively. The absorbing capacitor and the absorbing diode are serially coupled between the first and second terminals for absorbing a peak voltage. The third terminal is electrically connected to the corresponding first node or the input port.

Abstract: The present disclosure provides a power conversion module including a magnetic component and a power device layer. The magnetic component includes a main body layer, a first magnetic core, a second magnetic core and a conductor. The main body layer includes a first surface and a second surface opposite to each other. The first magnetic core is embedded in the main body layer and adjacent to the first surface. The second magnetic core is embedded in the main body layer and adjacent to the second surface. The first magnetic core and the second magnetic core are connected to form plural magnetic columns. The conductor is embedded between the first surface and the second surface. The conductor is partially disposed between the plural magnetic columns. The power device layer is disposed on the first surface. The power device layer includes a power device electrically connected to conductor.