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:
Apr. 20, 2021

Filed:

Sep. 04, 2019
Applicant:

Huawei Technologies Co., Ltd., Shenzhen, CN;

Inventors:

Yangyang Tang, Shenzhen, CN;

Enyi Yao, Shenzhen, CN;

Chen-Xiong Zhang, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/26 (2006.01); G11C 5/14 (2006.01); G05F 1/575 (2006.01); G11C 7/10 (2006.01); G11C 11/4074 (2006.01); G11C 16/30 (2006.01);
U.S. Cl.
CPC ...
G11C 5/147 (2013.01); G05F 1/575 (2013.01); G11C 7/10 (2013.01); G11C 11/4074 (2013.01); G11C 16/30 (2013.01);
Abstract

A voltage regulation circuit includes a first comparison and control unit and a second comparison and control unit. The first comparison and control unit is connected to a first switch unit, determine a first bias voltage based on a first output voltage, a first reference voltage, and a second reference voltage, and control a value of an equivalent resistance of the first switch unit using the first bias voltage. The second comparison and control unit is connected to a third switch unit and the second switch unit, determine a second bias voltage based on the first output voltage, a second output voltage, and a third reference voltage, and control values of equivalent resistances of the third switch unit and the second switch unit using the second bias voltage.


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