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:
Feb. 13, 1996
Filed:
Jul. 29, 1994
Applicant:
Inventors:
Toyojiro Naokawa, Saitama, JP;
Katsushige Fujii, Osaka, JP;
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330264 ; 330267 ;
Abstract
A class AB rail to rail output stage circuit, which includes two complementary output transistors connected in a push-pull manner, facilitates biasing of circuit transistors and improves frequency stability while supporting a wide rail to rail output voltage swing. A differential amplifier compares a biasing voltage applied to a first complementary output transistor to a reference voltage and the differential amplifier output signal is applied for biasing a second complementary output transistor.