ALEXANDRIA, Va., June 10 -- United States Patent no. 12,294,296, issued on May 6, was assigned to DELTA ELECTRONICS INC. (Taoyuan, Taiwan).
"Totem pole power factor correction circuit and method of operating the same" was invented by Chun-Hao Huang (Taoyuan, Taiwan), Chun-Wei Lin (Taoyuan, Taiwan), I-Hsiang Shih (Taoyuan, Taiwan), Ching-Nan Wu (Taoyuan, Taiwan) and Jia-Wei Yeh (Taoyuan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A Totem Pole PFC circuit includes at least one fast-switching leg, a slow-switching leg, and a control unit. Each fast-switching leg includes a fast-switching upper switch and a fast-switching lower switch. The slow-switching leg is coupled in parallel to the at least one ...