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, 2020
Filed:
Apr. 26, 2019
Puresemi Co., Ltd., Nanjing, CN;
PURESEMI Co., Ltd., Nanjing, CN;
Abstract
A bandgap reference circuit and a high-order temperature compensation method are disclosed. The bandgap reference circuit includes: a starting circuit, a bias circuit and a high-order compensated bandgap reference voltage generating circuit, where a compensation method of the high-order compensated bandgap reference voltage generating circuit is to perform curvature correction by using a sub-threshold current of a CMOS transistor to obtain a high-order temperature-compensated bandgap reference voltage source circuit. The present circuit has the advantages that a manner not increasing circuit complexity can be adopted for implementation, the accuracy of a bandgap reference source can be greatly improved, and power consumption, chip area and cost are reduced.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile