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.

Date of Patent:
Aug. 30, 2022

Filed:

Nov. 09, 2020
Applicant:

Winbond Electronics Corp., Taichung, TW;

Inventor:

Masafumi Nakatani, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 3/24 (2006.01); G05F 3/30 (2006.01); G05F 3/26 (2006.01); G05F 1/56 (2006.01);
U.S. Cl.
CPC ...
G05F 3/30 (2013.01); G05F 1/56 (2013.01); G05F 3/24 (2013.01); G05F 3/26 (2013.01); G05F 3/262 (2013.01);
Abstract

Provided is a constant current circuit supplying a temperature-compensated constant current. The constant current circuit includes a BGR circuit, a temperature dependent current generator, a reference current generator, and an output current generator. The BGR circuit generates a reference voltage with low voltage dependence. The temperature dependent current generator generates a temperature dependent current having a positive temperature coefficient. The reference current generator generates a temperature-compensated reference current by using the reference voltage and the temperature dependent current. The output current generator generates an output current based on the reference current generated by the reference current generator.


Find Patent Forward Citations

Nakatani, Masafumi. (2022). Constant current circuit and semiconductor apparatus (U.S. Patent No. 11429131). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11429131

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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