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. 02, 2021
Filed:
Feb. 03, 2020
Shenzhen Goodix Technology Co., Ltd., Shenzhen, CN;
Wei Du, Shenzhen, CN;
Junjun Zhang, Shenzhen, CN;
SHENZHEN GOODIX TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
A voltage regulator and a power supply are provided. The voltage regulator includes an operational amplifier and an offset voltage control module. The offset voltage control module includes one or more stages of regulation branches connected in parallel, and controls an offset voltage of the operational amplifier with the one or more stages of regulation branches to regulate the output voltage. The offset voltage control module also includes a bandgap reference generation circuit, configured to generate a reference voltage irrelevant to a temperature coefficient that is received by the operational amplifier from the input terminal, wherein the bandgap reference generation circuit comprises at least one of: a ΔV-based bandgap reference generation circuit having a full CMOS reference offset structure, a PTAT unit-based and V-based bandgap reference generation circuit having a full CMOS reference offset structure, and a PTAT unit-based and BJT-based bandgap reference generation circuit having a complementary structure.