ALEXANDRIA, Va., July 16 -- United States Patent no. 12,362,601, issued on July 15, was assigned to Richtek Technology Corp. (Hsinchu, Taiwan).

"Wireless power transmitter circuit and method capable of detecting wireless power receiver and foreign object" was invented by Wei-Shuo Wu (Kaohsiung, Taiwan) and Fu-Chi Lin (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wireless power transmitter circuit includes: an inverter circuit including plural switches coupled to a resonant transmitter circuit; and a transmitter controller circuit for generating a PWM control signal, to control the plural switches, thus generating a wireless transmission power via the resonant transmitter circuit in a powe...