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. 02, 2018

Filed:

Sep. 26, 2017
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Weibiao Zhang, Plano, TX (US);

Daniel J. Fritchman, San Francisco, CA (US);

Jafar Savoj, Sunnyvale, CA (US);

Venkatesh B Acharya, Austin, TX (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/563 (2006.01); G05F 1/575 (2006.01);
U.S. Cl.
CPC ...
G05F 1/563 (2013.01); G05F 1/575 (2013.01);
Abstract

A highly granular voltage regulator is disclosed. The voltage regulator circuit includes first and second current mirror circuits coupled to first and second control circuits, respectively. The voltage regulator circuit further includes an amplifier having an inverting input and a non-inverting input. The first current mirror circuit is coupled to the non-inverting input, whereas the second current mirror circuit is coupled to the inverting input. The first control circuit is operable to control a current provided by the first current mirror circuit, while the second control circuit is operable to control a current provided by the second current mirror circuit.


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