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:
Feb. 12, 2019

Filed:

Aug. 11, 2017
Applicant:

Nxp Usa, Inc., Austin, TX (US);

Inventors:

Pedro B. Zanetta, Campinas, BR;

Ricardo P. Coimbra, Campinas, BR;

Assignee:

NXP USA, Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/26 (2006.01); H03F 1/02 (2006.01); H03F 3/21 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0205 (2013.01); H03F 3/21 (2013.01); H03F 2200/153 (2013.01); H03F 2200/69 (2013.01);
Abstract

A source follower method, system, and apparatus provide rail-to-rail capability to an output voltage terminal of a voltage follower feedback biased CMOS output circuit by providing a control circuit which includes first and second bypass transistors that are connected in parallel between first and second control circuit input/output terminals and controlled, respectively, by first and second control circuit inputs, and which also includes first and second current sources for injecting source and sink currents in the output node as a function, respectively, of a first bypass current through the first bypass transistor which turns ON when the output voltage rises above a top threshold voltage level and of a second bypass current through the second bypass transistor which turns ON when the output voltage falls below a bottom threshold voltage level.


Find Patent Forward Citations

Zanetta, Pedro. (2019). Rail-to-rail source follower (U.S. Patent No. 10205423). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10205423

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

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