US Patent Issued to SHANGHAI BRIGHT POWER SEMICONDUCTOR on June 30 for "Built-in ripple injection circuit and control chip" (Chinese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,671,316, issued on June 30, was assigned to SHANGHAI BRIGHT POWER SEMICONDUCTOR Co. LTD. (Shanghai).

"Built-in ripple injection circuit and control chip" was invented by Rulong Jiang (Shanghai), Zhen Zhu (Shanghai), Xiaoru Gao (Shanghai), Yi Zhang (Shanghai) and Ge Yang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a built-in ripple injection circuit and a control chip, in which a divided feedback voltage is obtained by division of an output voltage by a feedback circuit, and high-frequency ripple in the output voltage is obtained by an operational amplifier and a first capacitor. Moreover, the high-frequency ri...