ALEXANDRIA, Va., April 15 -- United States Patent no. 12,603,568, issued on April 14, was assigned to Huawei Digital Power Technologies Co. Ltd. (Shenzhen, China).

"Power module, totem-pole power factor correction circuit, and control circuit thereof" was invented by Ken Chin (Shenzhen, China), Shuaibing Wang (Dongguan, China) and Bo Wang (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power module, a totem-pole power factor correction circuit, and a control circuit thereof. In response to a case in which a phase value of a transient voltage of an input voltage of the totem-pole power factor correction circuit is within a predetermined phase range, and an absolute value of a voltage value i...