US 12,411,460 B2
Sequential action device and solid-state starter and solid-state circuit breaker including thereof
Xiaoqiang Li, Shanghai (CN); Qing Yang, Shanghai (CN); Ying Shi, Shanghai (CN); Shunxian Mao, Shanghai (CN); and Junqi Xiang, Shanghai (CN)
Assigned to Schneider Electric (China) Co., Ltd., Beijing (CN)
Filed by Schneider Electric (China) Co., Ltd., Beijing (CN)
Filed on Nov. 27, 2023, as Appl. No. 18/519,598.
Claims priority of application No. 202321956055.0 (CN), filed on Jul. 24, 2023.
Prior Publication US 2025/0036088 A1, Jan. 30, 2025
Int. Cl. G05B 11/01 (2006.01)
CPC G05B 11/01 (2013.01) 8 Claims
OG exemplary drawing
 
1. A sequential action device for a power electronic switch and a mechanical switch connected in series in a main circuit, comprising:
a mechanical operating mechanism, wherein the mechanical switch is opened/closed based on a position of the mechanical operating mechanism;
a power electronic switch software control circuit and a power electronic switch drive circuit that control the power electronic switch to turn on/turn off, where the power electronic switch software control circuit controls the power electronic switch drive circuit to control the power electronic switch to turn on/turn off;
a triggering device that based on a position of the mechanical operating mechanism, sending a signal that allows for turning on/turning off to the power electronic switch software control circuit to control an action of the power electronic switch drive circuit;
a detection circuit that detects whether the mechanical switch is closed, wherein when the detection circuit detects that the mechanical switch is closed, the detection circuit sends a signal that allows for turning on to the power electronic switch software control circuit,
wherein during a power-on of the main circuit, the turning on of the power electronic switch and the closing of the mechanical switch are sequentially acted, and during a power-off of the main circuit, the turning off of the power electronic switch and the opening of the mechanical switch are sequentially acted.