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:
May. 24, 2022

Filed:

Oct. 02, 2019
Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventors:

Chun-Wei Chang, Hsin-Chu, TW;

Song-Yu Yang, Hsin-Chu, TW;

Ang-Sheng Lin, Hsin-Chu, TW;

Assignee:

MediaTek Inc., Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/575 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
G05F 1/575 (2013.01); H03F 3/45273 (2013.01);
Abstract

A voltage regulator provides a load device with a regulated voltage, and includes a first regulator circuit, a second regulator circuit, a first control loop circuit, and a second control loop circuit. The load device and the first regulator circuit are connected in series. The load device and the second regulator circuit are connected in parallel. The first control loop circuit adaptively adjusts a first bias voltage of the first regulator circuit in response to a load condition at the output node of the voltage regulator, wherein the first control loop circuit includes a capacitor coupled between the first power rail and an output node of a feedback amplifier. The second control loop circuit adaptively adjusts a second bias voltage of the second regulator circuit in response to the load condition at the output node of the voltage regulator.


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