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. 06, 2015

Filed:

May. 14, 2012
Applicants:

Min-hung HU, Hsinchu, TW;

Chiu-huang Huang, Hsinchu County, TW;

Inventors:

Min-Hung Hu, Hsinchu, TW;

Chiu-Huang Huang, Hsinchu County, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/16 (2006.01); G05F 1/56 (2006.01);
U.S. Cl.
CPC ...
G05F 1/561 (2013.01);
Abstract

A fast response current source capable of providing an output current is disclosed. The fast response current source includes a constant current generating block, a first feedback capacitor, a first current buffer and a first output current generating block. The constant current generating block provides a first constant current. The first current buffer generates a first buffering current to flow through the first feedback terminal, and changes a current value of the first buffering current in response to the current variation at the first feedback terminal when the voltage at the output terminal is varied. The first output current generating block generates a first output current to flow through the output terminal, and changes a current value of the first output current in response to the variation of the first buffering current when the voltage at the output terminal is varied.


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