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公开(公告)号：US11187728B2
公开(公告)日：2021-11-30
申请号：US16551751
申请日：2019-08-27
Applicant: DELTA ELECTRONICS, INC.
Inventor： Da Jin , Yahong Xiong
Abstract: The present disclosure provides a current sensing device, method and system, where the device is applied in a power conversion circuit. The current sensing device includes a first winding coupled to the resonant inductor, a second winding and an integrating circuit coupled to a primary winding of the transformer having a first input terminal, a second input terminal, an output terminal, and a common terminal; one terminal of the first winding is coupled to the first input terminal of the integrating circuit, the other terminal of the first winding and the other terminal of the second winding are coupled and connected to the common terminal of the integrating circuit; one terminal of the second winding is coupled to the second input terminal of the integrating circuit.
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公开(公告)号：US11160167B2
公开(公告)日：2021-10-26
申请号：US16887791
申请日：2020-05-29
Applicant: Delta Electronics, Inc.
Inventor： Da Jin , Xueliang Chang , Yahong Xiong , Qinghua Su
IPC: H02M3/158 , H01F27/24 , H05K1/18 , H02M3/04 , H05K1/11 , H05K1/14 , H01F27/28 , H02M3/28 , H02M7/00 , H02M7/217
Abstract: A voltage regulator module includes a circuit board assembly and a magnetic core assembly. The circuit board assembly includes a circuit board and 2N switching circuits. The circuit board includes a plurality of conductive structures. The magnetic core assembly includes an upper core, a lower core and 2N lateral legs. The 2N lateral legs are arranged between the upper core and the lower core. The 2N lateral legs are penetrated through the corresponding conductive structures. The 2N switching circuits are divided into N switching circuit groups. Each switching circuit group includes two parallel-connected switching circuits. The N switching circuit groups and the magnetic core assembly are arranged on the circuit board along a first direction. The N switching circuit groups are arranged one the circuit board along a second direction.
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公开(公告)号：US11122714B2
公开(公告)日：2021-09-14
申请号：US16589874
申请日：2019-10-01
Applicant: DELTA ELECTRONICS, INC.
Inventor： Da Jin , Shaojun Chen , Yahong Xiong
Abstract: A power module includes a power source module and a metallic bottom heat-dissipation substrate. The power source module has an input pin and an output pin soldered on and electrically connected with a system board and includes a printed circuit board. The printed circuit board has a top surface and a bottom surface. At least a heat-generating component is disposed on the bottom surface. The metallic bottom heat-dissipation substrate has an upper surface and a lower surface opposite to each other. The upper surface has at least a fixing position and at least a heat-dissipating position. The fixing position is directly or indirectly connected with the bottom surface. A gap accumulated by tolerances is existed between the heat-dissipating position and the heat-generating component. A gap-filling material is filled into the gap. The lower surface and the system board are soldered with each other. Therefore, the heat-dissipation efficiency is enhanced.
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公开(公告)号：US20210280354A1
公开(公告)日：2021-09-09
申请号：US17330270
申请日：2021-05-25
Applicant: Delta Electronics, Inc.
Inventor： Yahong Xiong , Da Jin , Qinghua Su
IPC: H01F27/28 , G05F1/575 , H01F27/02 , H01F27/29 , G06F1/18 , H01F17/04 , H05K1/02 , H05K1/16 , H05K1/18 , H05K7/14 , H05K7/20 , H01L25/16 , H01R12/52 , H01R12/58 , H02M3/158 , H05K1/11
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 one pair of first electrical conductors. The magnetic core portion comprises at least one 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.
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公开(公告)号：US20210274655A1
公开(公告)日：2021-09-02
申请号：US17168030
申请日：2021-02-04
Applicant: Delta Electronics, Inc.
Inventor： Da Jin , Kun Jiang , Junguo Cui , Yahong Xiong
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.
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Patent Agency Ranking
公开(公告)号：US11088611B2
公开(公告)日：2021-08-10
申请号：US16745128
申请日：2020-01-16
Applicant: Delta Electronics, Inc.
Inventor： Da Jin , Yahong Xiong , Qinghua Su
Abstract: A power converter includes a first positive terminal, a first negative terminal, a second positive terminal, a second negative terminal, a first capacitor and N phase conversion circuits. The first capacitor is connected between the second positive terminal and the second negative terminal. Each phase conversion circuit includes a first main switch, a second main switch, a second capacitor, a freewheeling switch, an inductor and a bridge arm circuit. The first main switch is electrically connected with the first positive terminal. The second capacitor is electrically connected with the first main switch and the second main switch. The freewheeling switch is electrically connected between the second main switch and the second negative terminal. The inductor is electrically connected with the second main switch. The second main switch is also electrically connected with the first main switch of an adjacent phase conversion circuit.
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公开(公告)号：US20210083584A1
公开(公告)日：2021-03-18
申请号：US17022983
申请日：2020-09-16
Applicant: Delta Electronics, Inc.
Inventor： Da Jin , Yahong Xiong , Qinghua Su
Abstract: A power conversion system is provided. The power conversion system includes a power conversion circuit, a bootstrap circuit and at least N driving circuits, where N is an integer larger than 1. The power conversion circuit includes an input port, an output port, N switching power conversion units and N nodes. The switching power conversion unit includes a first switch and a second switch. The bootstrap circuit includes N bootstrap capacitors and N bootstrap switches. The N bootstrap switches are serially connected in sequence. Two ends of the bootstrap capacitor are connected to the corresponding node and the second terminal of the corresponding bootstrap switch respectively. The first terminal of the (N)th bootstrap switch receives a supply voltage. The driving circuit is connected to the corresponding bootstrap capacitor and outputs driving signals for controlling the switches according to the positive electrode voltage of the bootstrap capacitor.
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公开(公告)号：US20210082615A1
公开(公告)日：2021-03-18
申请号：US17023119
申请日：2020-09-16
Applicant: Delta Electronics, Inc.
Inventor： Da Jin , Xueliang Chang , Yahong Xiong , Qinghua Su
Abstract: A power conversion system and a magnetic component thereof are provided. The magnetic component includes a magnetic core assembly, two windings and an air gap. The magnetic core assembly includes two substrates, four winding pillars and an auxiliary pillar unit. The four winding pillars and the auxiliary pillar unit are located between the two substrates. A connecting line of centers of the winding pillars forms a quadrangle which has a first diagonal line and a second diagonal line. One winding is wound around two winding pillars on the first diagonal line, and magnetic fluxes on these two winding pillars have the same direction and amount. The other winding is wound around the other two winding pillars located on the second diagonal line, and magnetic fluxes on these two winding pillars have the same direction and amount. The directions of the magnetic fluxes on the two neighboring winding pillars are opposite.
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公开(公告)号：US20200304036A1
公开(公告)日：2020-09-24
申请号：US16810544
申请日：2020-03-05
Applicant: Delta Electronics, Inc.
Inventor： Yahong Xiong , Shaojun Chen , Da Jin , Qinghua Su
Abstract: A voltage regulator module includes a circuit board assembly and a magnetic core assembly. The circuit board assembly includes a printed circuit board and at least one switch element. A first concave structure is concavely formed on a second surface of the printed circuit board. At least one protrusion post is disposed within the first concave structure. A pin as a positive output terminal, a pin as a positive input terminal and a pin as a negative output terminal are disposed on the second surface of the printed circuit board. The switch element is disposed on a first surface of the printed circuit board. The magnetic core assembly is accommodated within the first concave structure, and includes at least one opening. The protrusion post is penetrated through the corresponding opening. Consequently, at least one inductor is defined by the at least one protrusion post and the magnetic core assembly collaboratively.
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公开(公告)号：US20240347256A1
公开(公告)日：2024-10-17
申请号：US18753443
申请日：2024-06-25
Applicant: Delta Electronics, Inc.
Inventor： Da Jin , Yang Leng , Zhongwang Yang , Yahong Xiong
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, at least one second secondary winding and an auxiliary winding. The magnetic core assembly includes a first magnetic leg, a second magnetic leg and a third magnetic leg. The primary winding is wound around the second magnetic leg. The at least one secondary winding is wound around the second magnetic leg or the third magnetic leg. The auxiliary winding is electrically connected with an auxiliary inductor and wound around at least one magnetic leg. The primary winding is electrically connected with a first switch circuit, and the at least one secondary winding is electrically connected with a second switch circuit, wherein when switches of the first switch circuit turn off and switches of the second switch circuit turn on, an superposed AC voltage coupled by the auxiliary winding is applied on the auxiliary inductor.
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