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:
Oct. 14, 2025

Filed:

Sep. 14, 2023
Applicant:

Smarter Microelectronics (Guang Zhou) Co., Ltd., Guangzhou, CN;

Inventors:

Chifeng Liu, Guangzhou, CN;

Yongxiang Li, Guangzhou, CN;

Xin Zhang, Guangzhou, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/24 (2006.01); G05F 3/30 (2006.01);
U.S. Cl.
CPC ...
G05F 3/24 (2013.01); G05F 3/30 (2013.01);
Abstract

A band-gap reference source circuit is configured to be connected with an electronic device. The band-gap reference source circuit comprises: a power supply, a start circuit, a core circuit, an output circuit and a shunt circuit, wherein the power supply is connected to first ends of the start circuit, the core circuit and the output circuit; a second end of the start circuit is connected to the core circuit; a second end of the core circuit is connected to the output circuit, and a control end of the core circuit is connected to the shunt circuit and used for providing a control signal for the shunt circuit; an output end of the output circuit is used for connecting to an electronic device; and a first end of the shunt circuit is connected to the output end of the output circuit, and controls a current of a second end.


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