The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2026
Filed:
Dec. 19, 2022
Chengdu Monolithic Power Systems Co., Ltd., Chengdu, CN;
Hongqiang Qin, Hangzhou, CN;
Qiming Zhao, Hangzhou, CN;
Chengdu Monolithic Power Systems Co., Ltd., Chengdu, CN;
Abstract
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 circuit as a chosen common node voltage based on a hall sensing signal. The comparison circuit provides a comparison signal by comparing the chosen common node voltage with an input voltage. The reverse current control circuit determines whether to control a low-side switch of the first bridge circuit or a low-side switch of the second bridge circuit to work in a low-dropout linear regulation (LDO) mode based on the comparison signal and a polarity indication signal provided by the current polarity detection circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile