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:
Jun. 16, 1998
Filed:
Sep. 18, 1996
Applicant:
Inventors:
Peter Wiese, Hamburg, DE;
Manfred Biehl, Norderstedt, DE;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330252 ; 330258 ;
Abstract
A circuit arrangement includes a differential amplifier having two output terminals for supplying two output signals which each have a signal component which is variable about a reference level and is in phase opposition to the other signal component (push-pull signal). A significant improvement of the common-mode rejection is obtained by means of a control circuit adapted to form a sum signal from the output signals, to form a difference signal from the sum signal and a reference signal, and to control the reference level of the two push-pull signals in dependence upon the difference signal.