US Patent Issued to RICHTEK TECHNOLOGY on June 23 for "Class-D amplifier circuit" (Taiwanese Inventor)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,665,551, issued on June 23, was assigned to RICHTEK TECHNOLOGY Corp. (Zhubei City, Taiwan).

"Class-D amplifier circuit" was invented by Yi-Kuang Chen (Taichung, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A class-D amplifier circuit includes an amplifier circuit, a PWM circuit, a power stage circuit, a pair of feedback circuits, and a common-mode control circuit. The amplifier circuit receives a differential input signal at differential input ends to generate a differential intermediate signal. The PWM circuit generates a PWM signal according to the differential intermediate signal. The power stage circuit generates a differential output signa...