US Patent Issued to Chengdu Monolithic Power Systems on May 20 for "Switching mode power supply with stable zero crossing detection, the control circuit and the method thereof" (Chinese Inventor)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,758, issued on May 20, was assigned to Chengdu Monolithic Power Systems Co. Ltd. (Sichuan, China).

"Switching mode power supply with stable zero crossing detection, the control circuit and the method thereof" was invented by Hao Wang (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A switching mode power supply with stable zero crossing detection is discussed. The switching mode power supply disables a ZCD function when the AC input voltage has a voltage value close to a voltage value of the output voltage, so that instable zero crossing detection issues are eliminated. Meantime, when the AC input voltage has a voltage value close to ...