公开(公告)号：US11139678B1

公开(公告)日：2021-10-05

申请号：US16884605

申请日：2020-05-27

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chih-Ming Wu ,  Chi-Ming Mai ,  Yu-Ruei Zeng

IPC: H02J1/10 ,  H02J9/04 ,  H02J9/06 ,  H03K17/687 ,  H03K17/60

Abstract: A power supply system for automatic transfer switch applications comprises two first switch apparatuses, two second switch apparatuses, and a control unit. Each first switch apparatus comprises a first relay switch and a first switch assembly. The first switch assembly comprises a first bypass switch, a first semi-controllable switch, and a first fully-controllable switch. Each second switch apparatus comprises a second relay switch and a second switch assembly. The second switch assembly comprises a second bypass switch, a second semi-controllable switch, and a second fully-controllable switch. The control unit controls the two first switch apparatuses and the two switch apparatuses to uninterruptedly supply power to a load.

公开(公告)号：US10601245B2

公开(公告)日：2020-03-24

申请号：US15708501

申请日：2017-09-19

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chih-Ming Wu ,  Chien-Yu Lin ,  Chih-Chiang Chan

IPC: H02J9/06 ,  G06F1/26 ,  H02J4/00 ,  G06F1/28

Abstract: A power redundant system includes a switch module, a power-supplying module and a control unit. The switch module includes switch units. Each switch unit switches a power as an input power. The power-supplying module includes power-supplying units. Each power-supplying unit is connected to a switch unit correspondingly and converts the input power into an output power and supplies the output power to a load. The control unit controls the switch units to switch one of input sources of the power as the input power. If one of the switch units or power-supplying units is not operational, an electric power supplied by the power-supplying units connected to the remaining switch units correspondingly is greater than or equal to an electric power required by the load. When one of the input sources is abnormal, the control unit controls the switch units to switch to another input source.

公开(公告)号：US11320465B2

公开(公告)日：2022-05-03

申请号：US17016316

申请日：2020-09-09

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chih-Ming Wu ,  Chien-Yu Lin ,  Tsung-Hsun Lee

IPC: G01R19/00 ,  G01R19/165

Abstract: A method of inspecting power units applied to a plurality of power units is connected to a signal bus. The method is to disconnect the power unit having an output current from the signal bus, give a control command by a controller for raising the output current, measure the output current after the control command is given, and compare the measured output current with the target current value corresponding to the control command for determining an inspection result. The present disclosed example can effectively reduce inspection time and improve inspection accuracy.