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Patent Agency Ranking
公开(公告)号：US20230006540A1
公开(公告)日：2023-01-05
申请号：US17807142
申请日：2022-06-16
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Yi-Chao Wang , Kai Dong , Shuai-Lin Du , Jin-Fa Zhang
Abstract: The present disclosure provides a power conversion device. The power conversion device includes the multi-level power factor correction circuit, the at least one output capacitor, the at least one input capacitor group, the first resonant conversion circuit and the second resonant conversion circuit. The at least one input capacitor group includes the first input capacitor and the second input capacitor. The at least one output capacitor is connected to an output part of the multi-level power factor correction circuit. The at least one input capacitor group is connected to the at least one output capacitor in parallel. The second input capacitor is connected to the first input capacitor in series. The input part of the first resonant conversion circuit is connected to first input capacitor in parallel. The input part of the second resonant conversion circuit is connected to the second input capacitor in parallel.
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公开(公告)号：US11901108B2
公开(公告)日：2024-02-13
申请号：US16953365
申请日：2020-11-20
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Jin-Fa Zhang , Hai-Jun Yang , Zhong-Wei Ke , Kai Dong , Shuai-Lin Du
IPC: H01F27/28 , H05K7/20 , H05K1/18 , H05K1/14 , H01F17/04 , H02M1/42 , H01F17/00 , H02M1/00 , H02M3/00 , H02M3/335
CPC classification number: H01F27/2804 , H01F17/04 , H01F27/28 , H02M1/4225 , H05K1/141 , H05K1/181 , H05K7/20909 , H01F2017/0093 , H02M1/0085 , H02M3/003 , H02M3/01 , H02M3/33573 , H05K2201/045 , H05K2201/1003 , H05K2201/1006
Abstract: A power module includes a printed circuit board (PCB), a magnetic element, primary and secondary winding circuits and a regulator. The magnetic element is disposed on the PCB and has first to fourth sides. The second side is opposite to the first side, the fourth side is opposite to the third side. The primary winding circuit is disposed on the PCB and positioned in a vicinity of the first or second side. The secondary winding circuit is disposed on the first PCB and positioned in a vicinity of the third or fourth side. The regulator includes a switch disposed on the PCB, and coupled to the primary winding circuit. The at least one switch, the primary winding circuit, and the magnetic element are arranged in a first direction in order. A power device is also disclosed herein.
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公开(公告)号：US11870342B2
公开(公告)日：2024-01-09
申请号：US17456888
申请日：2021-11-30
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Hui Huang , Kun-Peng Wang , Shuai-Lin Du , Wei-Ke Yao , Feng Yao , Kai Dong , Jin-Fa Zhang
CPC classification number: H02M3/01 , H02M1/0096 , H02M1/0058 , H02M3/33576
Abstract: A resonant converter includes primary and secondary circuits, a transformer, a resonant network and a control circuit. The control circuit is coupled to the primary circuit and the secondary circuit, and configured to control primary switches of the primary circuit operating with a switching frequency. At least one of primary switches is configured to be turned on from a first switching moment until a second switching moment. The control circuit is configured to control secondary switches of the secondary circuit, such that at least one of secondary switches is turned on during a first time interval to increase a current of the resonant network in a first flowing direction and an output current in a second flowing direction or equal to zero.
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公开(公告)号：US11894765B2
公开(公告)日：2024-02-06
申请号：US17807142
申请日：2022-06-16
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Yi-Chao Wang , Kai Dong , Shuai-Lin Du , Jin-Fa Zhang
CPC classification number: H02M1/4233 , H02M1/0085 , H02M1/0095 , H02M3/01 , H02M7/219 , H02M1/42 , H02M1/4208 , H02M1/4241
Abstract: The present disclosure provides a power conversion device. The power conversion device includes the multi-level power factor correction circuit, the at least one output capacitor, the at least one input capacitor group, the first resonant conversion circuit and the second resonant conversion circuit. The at least one input capacitor group includes the first input capacitor and the second input capacitor. The at least one output capacitor is connected to an output part of the multi-level power factor correction circuit. The at least one input capacitor group is connected to the at least one output capacitor in parallel. The second input capacitor is connected to the first input capacitor in series. The input part of the first resonant conversion circuit is connected to first input capacitor in parallel. The input part of the second resonant conversion circuit is connected to the second input capacitor in parallel.
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公开(公告)号：US11588398B1
公开(公告)日：2023-02-21
申请号：US17538421
申请日：2021-11-30
Applicant: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
Inventor： Hui Huang , Laszlo Huber , Kun-Peng Wang , Shuai-Lin Du , Kai Dong , Peter Mantovanelli Barbosa , Jin-Fa Zhang
Abstract: A resonant converter includes a transformer, a resonant network, control circuit, primary and secondary circuits. One of the primary switches is turned on from a first switching moment until a second switching moment. The resonant network is coupled between the primary circuit and the primary winding. A current of the resonant network changes a direction at a first moment between the first and second switching moments. The secondary circuit is coupled to the secondary winding. One of the secondary switches is turned on during first and second preset time interval to increase the current in a direction by the secondary winding being clamped by a preset voltage, in which the output current is increased in an opposite direction or equal to zero.
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