ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,494,751, issued on Dec. 9, was assigned to Shanghai WUQI Microelectronics Co. Ltd. (Shanghai).
"Bias circuit and power amplifier" was invented by Qiang Gu (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "Bias circuits for CMOS power amplifiers are provided. The bias circuit includes a feedback module, a first bias module, and a second bias module. The feedback module has a first input connected to a output common mode voltage, a second input connected to a reference voltage, and an output connected to gates of main amplification transistors in a first differential amplification module; based on a difference between the output common mode voltage ...