公开(公告)号：US20210161015A1

公开(公告)日：2021-05-27

申请号：US17170537

申请日：2021-02-08

Applicant: Delta Electronics, Inc.

Inventor： Da Jin ,  Yahong Xiong ,  Junguo Cui ,  Qinghua Su

IPC: H05K1/18 ,  H02M3/04 ,  H05K1/11 ,  H05K1/14 ,  H01F27/24 ,  H01F27/28 ,  H02M3/28 ,  H02M7/00 ,  H02M7/217

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.

公开(公告)号：US20210083658A1

公开(公告)日：2021-03-18

申请号：US17022939

申请日：2020-09-16

Applicant: Delta Electronics, Inc.

Inventor： Da Jin ,  Yahong Xiong ,  Qinghua Su

IPC: H03K17/08 ,  H02M3/155 ,  H02M1/32

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.

公开(公告)号：US20210075323A1

公开(公告)日：2021-03-11

申请号：US17014446

申请日：2020-09-08

Applicant: Delta Electronics, Inc.

Inventor： Da Jin ,  Yahong Xiong ,  Yingjun Li ,  Qinghua Su

IPC: H02M3/158 ,  H02M3/00

Abstract: A power conversion system is provided. The power conversion system includes N power conversion circuits. Each power conversion circuit includes an input, an output, two switching power conversion units and at least one resonant capacitor. The input and output are configured to receive an input voltage and output an output voltage respectively. Each switching power conversion unit includes a plurality of switches and a winding. The plurality of switches operates periodically according to a switching period. A dotted terminal of one winding is electrically coupled to an undotted terminal of the other winding. The two windings are magnetically coupled to each other to form a transformer. In one switching period, the resonant capacitor stores an energy or outputs the stored energy as the corresponding switch is turned on or off. A resonance is generated between the resonant capacitor and inductor with a resonant frequency and a resonant period.

公开(公告)号：US20250104902A1

公开(公告)日：2025-03-27

申请号：US18974254

申请日：2024-12-09

Applicant: Delta Electronics, Inc.

Inventor： Yahong Xiong ,  Da Jin ,  Qinghua Su

IPC: H01F27/28 ,  G05F1/575 ,  G06F1/18 ,  H01F17/04 ,  H01F17/06 ,  H01F27/02 ,  H01F27/24 ,  H01F27/29 ,  H01L25/16 ,  H01R12/52 ,  H01R12/58 ,  H02M3/00 ,  H02M3/158 ,  H05K1/02 ,  H05K1/11 ,  H05K1/14 ,  H05K1/16 ,  H05K1/18 ,  H05K3/28 ,  H05K7/14 ,  H05K7/20

Abstract: A power module comprises a first circuit board assembly and a magnetic core assembly. The first circuit board assembly comprises a first printed circuit board and at least two switch circuits disposed on the first printed circuit board. The magnetic core assembly is disposed near the first printed circuit board and comprises a magnetic core portion and at least a pair of first electrical conductors. The magnetic core portion comprises at least a core unit, the core unit comprises a pair of holes and a second magnetic overlapping region, and the pair of holes are separated by the second magnetic overlapping region. Each pair of the first electrical conductors is penetrated through the corresponding pair of holes of the magnetic core portion to define two output inductors. Each of the switch circuits is electrically connected with the corresponding output inductor to define a phase circuit of the power module.

公开(公告)号：US12231040B2

公开(公告)日：2025-02-18

申请号：US17987548

申请日：2022-11-15

Applicant: Delta Electronics, Inc.

Inventor： Da Jin ,  Yahong Xiong ,  Litao Qian ,  Qinghua Su

IPC: H02M3/07 ,  H02M3/00 ,  H02M3/158 ,  H02M3/28

Abstract: A power conversion circuit is provided. According to the topologies of power conversion circuits and the corresponding control manners of the present disclosure, the output voltage is greatly reduced relative to the input voltage, and thus the function of voltage reduction is achieved. Moreover, a voltage-second product of the time and the voltage across the first output inductor and a voltage-second product of the time and the voltage across the second output inductor are both greatly reduced. Accordingly, the inductance, volume and loss of the first output inductor and the second output inductor are greatly reduced. Therefore, the voltage regulation module may receive the low output voltage outputted by the power conversion circuit, thereby reducing the overall volume of the voltage regulation module and increasing the power conversion density and conversion efficiency of the voltage regulation module.

公开(公告)号：US12062479B2

公开(公告)日：2024-08-13

申请号：US17708948

申请日：2022-03-30

Applicant: Delta Electronics, Inc.

Inventor： Da Jin ,  Yang Leng ,  Zhongwang Yang ,  Yahong Xiong

IPC: H01F27/30 ,  H01F27/26 ,  H01F27/29 ,  H02M7/00

CPC classification number: H01F27/26 ,  H01F27/29 ,  H01F27/306 ,  H02M7/003

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.

公开(公告)号：US20240194390A1

公开(公告)日：2024-06-13

申请号：US18444674

申请日：2024-02-17

Applicant: Delta Electronics, Inc.

Inventor： Yahong Xiong ,  Da Jin ,  Qinghua Su

IPC: H01F27/28 ,  G05F1/575 ,  G06F1/18 ,  H01F17/04 ,  H01F17/06 ,  H01F27/02 ,  H01F27/24 ,  H01F27/29 ,  H01L25/16 ,  H01R12/52 ,  H01R12/58 ,  H02M3/00 ,  H02M3/158 ,  H05K1/02 ,  H05K1/11 ,  H05K1/14 ,  H05K1/16 ,  H05K1/18 ,  H05K3/28 ,  H05K7/14 ,  H05K7/20

CPC classification number: H01F27/2804 ,  G05F1/575 ,  G06F1/183 ,  H01F17/04 ,  H01F17/06 ,  H01F27/02 ,  H01F27/24 ,  H01F27/292 ,  H01L25/16 ,  H01R12/52 ,  H01R12/58 ,  H02M3/003 ,  H02M3/1584 ,  H05K1/0203 ,  H05K1/111 ,  H05K1/117 ,  H05K1/145 ,  H05K1/165 ,  H05K1/181 ,  H05K1/186 ,  H05K3/284 ,  H05K7/1427 ,  H05K7/2089 ,  H05K2201/10015 ,  H05K2201/1003 ,  H05K2201/10053 ,  H05K2201/10166 ,  H05K2201/10522 ,  H05K2201/10636 ,  H05K2201/10734 ,  H05K2201/10984

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.

公开(公告)号：US20240096543A1

公开(公告)日：2024-03-21

申请号：US18389120

申请日：2023-11-13

Applicant: Delta Electronics, Inc.

Inventor： Yahong Xiong ,  Da Jin ,  Qinghua Su

IPC: H01F27/28 ,  G05F1/575 ,  G06F1/18 ,  H01F17/04 ,  H01F17/06 ,  H01F27/02 ,  H01F27/24 ,  H01F27/29 ,  H01L25/16 ,  H01R12/52 ,  H01R12/58 ,  H02M3/00 ,  H02M3/158 ,  H05K1/02 ,  H05K1/11 ,  H05K1/14 ,  H05K1/16 ,  H05K1/18 ,  H05K3/28 ,  H05K7/14 ,  H05K7/20

CPC classification number: H01F27/2804 ,  G05F1/575 ,  G06F1/183 ,  H01F17/04 ,  H01F17/06 ,  H01F27/02 ,  H01F27/24 ,  H01F27/292 ,  H01L25/16 ,  H01R12/52 ,  H01R12/58 ,  H02M3/003 ,  H02M3/1584 ,  H05K1/0203 ,  H05K1/111 ,  H05K1/117 ,  H05K1/145 ,  H05K1/165 ,  H05K1/181 ,  H05K1/186 ,  H05K3/284 ,  H05K7/1427 ,  H05K7/2089 ,  H05K2201/10015 ,  H05K2201/1003 ,  H05K2201/10053 ,  H05K2201/10166 ,  H05K2201/10522 ,  H05K2201/10636 ,  H05K2201/10734 ,  H05K2201/10984

Abstract: A power system includes a power module, an electronic load and a system board. The power module includes a first surface, a second surface, a switch and a plurality of conductive parts, wherein the switch is disposed on the first surface of the power module and the plurality of conductive parts are disposed on the second surface of the power module. The electronic load includes a plurality of conductive parts. The power module and the electronic load are disposed on two opposite sides of the system board, the power module delivers power to the electronic load through the system board, and gaps and networks of the plurality of conductive parts of the power module correspond to those of the plurality of conductive parts of the electronic load.

公开(公告)号：US20240047126A1

公开(公告)日：2024-02-08

申请号：US18229029

申请日：2023-08-01

Applicant: Delta Electronics, Inc.

Inventor： Da Jin ,  Litao Qian ,  Yuanyuan Li ,  Hongyu Zhai

IPC: H01F27/30 ,  H01F27/26 ,  H01F27/02 ,  H01F27/29 ,  H02M3/335 ,  H02M3/00

CPC classification number: H01F27/306 ,  H01F27/26 ,  H01F27/02 ,  H01F27/29 ,  H02M3/335 ,  H02M3/003

Abstract: A magnetic device for a power conversion module is provided. The magnetic device includes a magnetic core assembly. The magnetic core assembly includes an upper magnetic cover, a lower magnetic cover, a first magnetic leg, a second magnetic leg and a channel. The lower magnetic cover includes a first opening and a second opening. The first magnetic leg is disposed between the upper magnetic cover and the lower magnetic cover. The second magnetic leg is disposed between the upper magnetic cover and the lower magnetic cover. The channel is disposed between the first magnetic leg and the second magnetic leg. When the upper magnetic cover and the lower magnetic cover are locked on a circuit board, the first magnetic leg and the second magnetic leg are included in a projection region of the upper magnetic cover with respect to the lower magnetic cover.

公开(公告)号：US11894777B2

公开(公告)日：2024-02-06

申请号：US18122963

申请日：2023-03-17

Applicant: Delta Electronics, Inc.

Inventor： Da Jin ,  Yahong Xiong ,  Qinghua Su ,  Zhongwang Yang

IPC: H02M3/00 ,  H02M3/158 ,  H02M3/335 ,  H02M3/07 ,  H02M1/00

CPC classification number: H02M3/33584 ,  H02M3/01 ,  H02M3/07 ,  H02M3/158 ,  H02M1/0003 ,  H02M1/0095 ,  H02M3/1584 ,  H02M3/33569

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.