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:
Aug. 06, 2002
Filed:
Oct. 03, 2000
Applicant:
Inventors:
Neil Gibson, Richardson, TX (US);
Marco Corsi, Allen, TX (US);
William A. Phillips, Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 ;
U.S. Cl.
CPC ...
G05F 1/10 ;
Abstract
A low EMI bias current generator for cable modem applications has a distributed output stage with a steering input that controls the amount of bias current flowing through each transistor of a differential pair. A pair of resistors acts as a potentiometer controlling the amount of voltage seen across the input of the differential pair. The resistor pair controls the speed of transfer of bias current from one transistor to another such that the current transfer will take the form of a hyperbolic tangent that will allow a very gentle start-up.