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:
Dec. 14, 1976
Filed:
Jul. 17, 1975
Applicant:
Inventor:
Werner Felix Thommen, Hausen, CH;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330 13 ; 330 15 ; 330 22 ; 330 28 ; 330 40 ;
Abstract
A push-pull amplifier consisting of a complementary pair of output transistors whose bases are interconnected by a resistor. According to the invention, the bases are separately connected to the outputs of two current mirrors whose inputs are interconnected via a second resistor. A relation is then obtained between the values of the two resistors for which the quiescent current through the output transistors is supply-voltage independent in a first-order approximation.