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:
Mar. 12, 2013
Filed:
Oct. 21, 2011
Rajavelu Thinakaran, Karnkataka, IN;
Rajavelu Thinakaran, Karnkataka, IN;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A dynamic biasing circuit includes a first input pair coupled to a second input pair, the first input pair including a first transistor and a second transistor with sources coupled to each other, and the second input pair comprising a third transistor and a fourth transistor with sources coupled to each other, the sources receiving a bias current. A first current mirror that generates an output current is coupled to the first input pair. A second current mirror is coupled to the first input pair and the second input pair. The second current mirror is configured to force the current to drop in the fourth transistor in response to sensing a current drop in the first transistor such that the bias current flows through the second and third transistors that boosts the output current.