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.
Patent No.:
Date of Patent:
Apr. 20, 2010
Filed:
May. 20, 2008
Applicant:
Ming-han Lee, Sindian, TW;
Inventor:
Ming-Han Lee, Sindian, TW;
Assignee:
Realtek Semiconductor Corp., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A current output circuit with bias control and a method thereof are provided. The current output circuit includes a current mirror circuit comprising a first transistor and a second transistor having respectively two drains, and a control circuit coupled to the current mirror circuit. The control circuit receives drain voltages of the first transistor and the second transistor, and adjusts a respective gate bias of the first transistor and the second transistor according to a respective drain voltage thereof.