US Patent Issued to OmniOn Power Technology on June 23 for "Driving circuit device and driving method of totem-pole power factor correction converter" (Chinese Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,665,497, issued on June 23, was assigned to OmniOn Power Technology GmbH (Baden, Switzerland).

"Driving circuit device and driving method of totem-pole power factor correction converter" was invented by Qixue Yu (Shanghai) and Kun Dou (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one embodiment, a driving circuit device for a totem pole power factor correction converter (PFC) includes: a controller configured to control an initial drive level of a switching tube of the converter; a current judgment circuit configured to determine whether the inductive current of the converter crosses zero or not; a selector configured to compare a power su...