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:
Aug. 08, 2017

Filed:

Jul. 05, 2016
Applicant:

National Chiao Tung University, Hsinchu, TW;

Inventors:

Yu-Jiu Wang, Taichung, TW;

Ching-Yun Chu, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/04 (2006.01); H03F 3/45 (2006.01); H03F 1/02 (2006.01); H03F 3/16 (2006.01); H03F 1/30 (2006.01); G05F 3/24 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45475 (2013.01); G05F 3/242 (2013.01); H03F 1/0205 (2013.01); H03F 1/0261 (2013.01); H03F 1/301 (2013.01); H03F 3/16 (2013.01); H03F 2200/24 (2013.01); H03F 2200/555 (2013.01); H03F 2203/45136 (2013.01); H03F 2203/45154 (2013.01); H03F 2203/45288 (2013.01); H03F 2203/45528 (2013.01);
Abstract

A bias circuit is adapted for biasing a to-be-biased transconductance cell such that the to-be-biased transconductance cell has a constant transconductance, and includes a converter and a controller. The converter receives first and second current signals, and generates, based on the first and second current signals, a first voltage signal, a second voltage signal and a bias voltage that is for biasing the to-be-biased transconductance cell. The controller receives the first and second voltage signals from the converter, generates the first and second current signals for the converter based on the first and second voltage signals so as to make a magnitude of the first voltage signal equal a magnitude of the second voltage signal.


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