US Patent Issued to VERTIV on Dec. 9 for "Soft start circuit of UPS relay" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,494,666, issued on Dec. 9, was assigned to VERTIV Corp. (Westerville, Ohio).

"Soft start circuit of UPS relay" was invented by Shaoqiang Lin (Guangdong, China), Wei Xu (Guangdong, China), Xiaolu Guo (Guangdong, China) and Ying Wang (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A soft start circuit of a UPS relay includes a three-phase pre-charging module, a first PFC module, a second PFC module, a relay module, a three-phase input voltage detection module, a bus voltage detection module and a relay control module. The relay control module is electrically connected to the three-phase input voltage detection module and the bus voltage de...