ALEXANDRIA, Va., June 18 -- United States Patent no. 12,328,063, issued on June 10, was assigned to Delta Electronics (Shanghai) Co. Ltd. (Shanghai).
"Totem pole power factor correction circuit" was invented by Yuesen Guo (Shanghai) and Kai Dong (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A totem pole power factor correction circuit is provided. The detection module in the totem pole power factor correction circuit includes a detection resistor and a detection circuit. If the output voltage outputted by the detection circuit is greater than or equal to an upper limit voltage threshold or lower than or equal to a lower limit voltage threshold, at least a third switch and a fourth switch are turne...