ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,401,272, issued on Aug. 26, was assigned to Delta Electronics (Shanghai) Co. Ltd. (Shanghai).
"Totem pole power factor correction circuit" was invented by Kai Dong (Shanghai) and Yuesen Guo (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A totem pole power factor correction circuit includes a detection module and a control unit. The detection module includes a first detection resistor and a first detection circuit. After a voltage difference between the two terminals of the first detection resistor is detected by the first detection circuit, an output voltage is generated. The control unit determines the operating state of the totem pole power ...