US Patent Issued to FUJI ELECTRIC on Oct. 7 for "Control circuit and power factor correction circuit" (Japanese Inventor)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,473, issued on Oct. 7, was assigned to FUJI ELECTRIC Co. LTD. (Kawasaki, Japan).

"Control circuit and power factor correction circuit" was invented by Hironobu Shiroyama (Matsumoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A control circuit for a circuit that has a rectifier circuit including first to fourth diodes, and first to fourth switches respectively connected in parallel with the first to fourth diodes, for rectifying an AC voltage; and a capacitor receiving the rectified AC voltage. The control circuit controls the first to fourth switches, and includes: a determination unit determining an off-period in which, when the AC voltage...