ALEXANDRIA, Va., March 24 -- United States Patent no. 12,587,115, issued on March 24, was assigned to Chengdu Monolithic Power Systems Co. Ltd. (Chengdu, China).
"Driving circuit for motor systems and control method thereof" was invented by Hongqiang Qin (Hangzhou, China) and Qiming Zhao (Hangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A driving circuit for a motor has a multiplexer, a current polarity detection circuit, a first comparison circuit, a reverse current control circuit, a first bridge circuit, and a second bridge circuit. The multiplexer chooses a voltage at a common node of two switches of the first bridge circuit or a voltage at a common node of two switches of the second bridge...