ALEXANDRIA, Va., July 3 -- United States Patent no. 12,348,153, issued on July 1, was assigned to RICHTEK TECHNOLOGY Corp. (Zhubei, Taiwan).

"High efficiency charging system and power conversion circuit thereof" was invented by Wei-Hsu Chang (Hsinchu, Taiwan) and Ta-Yung Yang (Taoyuan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power conversion circuit includes an inductive switching power converter and a capacitive switching power converter. The inductive switching power converter switches an inductor to converter a DC power to a first power. The capacitive switching power converter switches a conversion capacitor to convert the first power to a charging power for charging a battery. The induct...