ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,212,249, issued on Jan. 28, was assigned to Apple Inc. (Cupertino, Calif.).
"Two-step inverter for wireless power applications" was invented by Weihong Qiu (San Ramon, Calif.), Jun Liu (Pleasanton, Calif.) and Zaki Moussaoui (San Carlos, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A switched capacitor converter can include a switched capacitor stage comprising a flying capacitor and a ladder of three switching devices. A first switching device can be connected between a DC input of the switched capacitor converter and an AC bus. A second switching device is connected between the DC input and a third switching device. The third switching device...