ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,362, issued on Dec. 2, was assigned to Huawei Digital Power Technologies Co. Ltd. (Shenzhen, China).
"Power supply apparatus and totem-pole PFC circuit control method" was invented by Ken Chin (Shenzhen, China), Yuanjun Liu (Shenzhen, China), Shanglin Mo (Dongguan, China) and Liangyun Kang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power supply apparatus includes a totem-pole power factor correction (PFC) circuit and a control apparatus, and the totem-pole PFC circuit includes a first switching transistor and a second switching transistor. The control apparatus includes a controller and a dead time detection circuit, and the de...