ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,537, issued on April 21, was assigned to Delta Electronics (Shanghai) Co. Ltd. (Shanghai).

"Power conversion system and auxiliary power supplying method thereof" was invented by Xia Shi (Shanghai), Bing Jiao (Shanghai), Weihang Wang (Shanghai), Jun Chen (Shanghai), Yun Hua (Shanghai) and Zhizhen Lian (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power conversion system and an auxiliary power supplying method thereof are provided. The power conversion system includes AC and DC ports, an AC-DC converter, a bus capacitor, and a first auxiliary source. The AC port receives or provides an AC voltage, and the DC port provides or receives a D...