公开(公告)号：US20240055998A1

公开(公告)日：2024-02-15

申请号：US18328787

申请日：2023-06-05

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chun-Wei WU ,  Hung-Chuan LIN

IPC: H02M7/00 ,  H05K7/14 ,  H05K1/18

CPC classification number: H02M7/003 ,  H05K7/1427 ,  H05K1/181 ,  H05K2201/10151

Abstract: A photovoltaic inverter includes a casing, at least one circuit board located in the casing, a current sensor located on the at least one circuit board, an arc detector located on the at least one circuit board, a self-test coil located on the at least one circuit board, and at least one direct current input terminal located on the casing and connected to the at least one circuit board, wherein the self-test coil is configured to deliver a test signal to be sensed by the arc detector, and the direct current input terminal is configured to deliver a direct current through the arc detector, wherein the current sensor is configured to detect a magnitude of the direct current passing through the direct current input terminal.

公开(公告)号：US20180074098A1

公开(公告)日：2018-03-15

申请号：US15654021

申请日：2017-07-19

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chun-Wei WU ,  Xin-Hung LIN

IPC: G01R19/165 ,  H02P27/06 ,  H02H7/09 ,  G01R19/00 ,  G01R19/18

CPC classification number: G01R19/165 ,  G01R19/00 ,  G01R19/0015 ,  G01R19/0069 ,  G01R19/18 ,  H02H7/09 ,  H02P27/06

Abstract: A current detecting apparatus measures an input current or an output current of an electronic apparatus. The current detecting apparatus includes a current detecting module, a direct-current measurement module and a current detecting module. The current detecting module includes a coil configured to electromagnetically couple to a path of an input or a path of an output of the electronic apparatus to obtain a first voltage signal. The direct-current measurement module measures the path of the input or the path of the output to obtain a second voltage signal. The current detecting module converts the first voltage signal into a first current command, and converts the second voltage signal into a second current command. The first current command is an alternating-current component of the input current or the output current. The second current command is a direct-current component of the input current or the output current.