公开(公告)号：US20190305668A1

公开(公告)日：2019-10-03

申请号：US15964985

申请日：2018-04-27

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chia-Hsien CHU

IPC: H02M1/32 ,  H02M7/217

Abstract: A surge protective apparatus of a power conversion circuit includes an AC-to-DC conversion circuit and two voltage clamping units. The AC-to-DC conversion circuit receives an AC power source and converts the AC power source into a DC power source. The DC power source is provided between a positive output terminal and a negative output terminal of the AC- to-DC conversion circuit. Two first ends of the two voltage clamping units are respectively coupled to a first AC terminal and a second AC terminal of the AC power source, and two second ends of the two voltage clamping units are commonly coupled to the positive output terminal or the negative output terminal. Accordingly, it is to effectively suppress surge energy generated from the AC power source.

公开(公告)号：US20230061748A1

公开(公告)日：2023-03-02

申请号：US17653657

申请日：2022-03-07

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chia-Hsien CHU ,  Chih-Chiang CHAN ,  Yi-Hua CHANG

IPC: H05K7/12 ,  H01R13/62 ,  H01R11/30 ,  H05K7/20

Abstract: A power supply device includes at least one magnetic member, a first circuit board and a second circuit board. The first circuit board is disposed over the magnetic member and is electrically connected to the magnetic member. The first circuit board has an opening. The second circuit board is electrically connected to the first circuit board. The second circuit board is disposed over the first circuit board and faces the opening of the first circuit board.