ALEXANDRIA, Va., June 12 -- United States Patent no. 12,301,100, issued on May 13, was assigned to Huawei Digital Power Technologies Co. Ltd. (Shenzhen, China).

"Power factor correction circuit and power converter" was invented by Ken Chin (Shenzhen, China), Yuanjun Liu (Shenzhen, China) and Zhixiang Hu (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power factor correction (PFC) circuit includes an alternating current input circuit, a totem-pole PFC circuit, an input sampling circuit, an output sampling circuit, and a PFC control protection circuit. A first output terminal of the alternating current input circuit is respectively connected to a first input terminal of the totem-pole PFC cir...