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. 19, 1997
Filed:
Jan. 16, 1996
Applicant:
Inventors:
Stuart Barnett Shacter, Tucson, AZ (US);
David Kunst, Tucson, AZ (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330267 ; 330263 ;
Abstract
A class AB low voltage output stage with improved current drive capability where the signal input to the stage modulates the base drive currents of both an output transistor sourcing current to a load and an output transistor sinking current from the load. Coupling the base drive currents by means of the input amplifier permits higher drive currents to be obtained for the output transistors without increasing the quiescent current of the circuit.