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. 26, 2002
Filed:
Jun. 30, 1998
Applicant:
Inventor:
Dima David Shulman, Marlboro, NJ (US);
Assignee:
Agere Systems Guardian Corp., Orlando, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06G 7/12 ;
U.S. Cl.
CPC ...
G06G 7/12 ;
Abstract
The common-mode feedback circuit generates currents representing the output voltages of a fully differential amplifier, and sums these current to produce a summation current. Based on the comparison of the summation current to a reference current, the common-mode feedback circuit generates a feedback voltage for stabilizing the fully differential amplifier.