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:
Oct. 30, 2001
Filed:
Mar. 29, 2000
Robert W. Walden, Bethlehem, PA (US);
Agere Systems Guardian Corp., Orlando, FL (US);
Abstract
An amplifier architecture wherein a primary or main operational amplifier is combined with a secondary or auxiliary high power operational amplifier to maintain the charge on a large load capacitor which operates as voltage reference source for a high precision analog circuit module. The auxiliary amplifier is activated only during brief periods for which a very high slew rate is required. This is achieved by additionally including a control circuit which regulates the operation of the auxiliary amplifier so that it operates only during very short intervals of very high load while the main operational amplifier accommodates all other normal operating conditions.