ALEXANDRIA, Va., June 4 -- United States Patent no. 12,323,117, issued on June 3, was assigned to SIGMASTAR TECHNOLOGY LTD. (Fujian, China).
"Post driver having voltage protection" was invented by Yin-Yin Gu (Shanghai), Ze-Wei He (Shanghai), Zhao-Qi Xu (Shanghai) and Kai Sun (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A post driver includes an input pair circuit, a protection circuit, a common mode sensing circuit and an amplifier. The input pair circuit outputs a first signal through a first node and outputs a second signal through a second node according to a first input signal and a second input signal. The protection circuit provides the input pair circuit with voltage protection according t...