US Patent Issued to Chengdu Monolithic Power Systems on Nov. 18 for "Multi-mode PFC circuit and control method thereof" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,536, issued on Nov. 18, was assigned to Chengdu Monolithic Power Systems Co. Ltd. (Sichuan, China).

"Multi-mode PFC circuit and control method thereof" was invented by Pengfei Liu (Hangzhou, China), Hao Wang (Hangzhou, China) and Chuanhao Xu (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power factor control circuit for controlling a PFC circuit is disclosed. The PFC circuit is controlled to operate in one or more operation mode(s) (e.g., CCM, BCM, and DCM) in a single cycle of an input rectified voltage based on a load condition of the PFC circuit. The power factor control circuit includes a control reference circuit and a switch...