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:
Jul. 14, 1992
Filed:
Apr. 20, 1990
Ivo W Rutten, Eindhoven, NL;
Robert E Van De Grift, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A bipolar transistor arrangement with compensation for the distortion component (Id) in the collector current (Io+Id) of a transistor (T1), which component is caused by the logarithmic base-emitter voltage thereof. In order to provide this compensation a sub-current (Is) proportional to the emitter current (I+Ie) is generated. This sub-current is fed through an element (7) comprising at least one semiconductor junction. By means of a voltage-to-current converter (8) the logarithmic voltage appearing across this element is converted into a correction current (Ir) proportional to the distortion component (Id) and is applied to the collector of the transistor (T1) in order to compensate for the distortion component (Id) flowing in a load circuit (Rc) connected to the collector. The arrangement is suitable for use in voltage-to-current converters made up of bipolar transistors.