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:
Jan. 31, 1984
Filed:
Nov. 23, 1981
Carl F Wheatley, Jr, Drums, PA (US);
RCA Corporation, New York, NY (US);
Abstract
A differential amplifier stage is disclosed which utilizes opposed pairs of complementary transistors. The emitter electrodes of the complementary transistors of each pair are connected via matched resistors. A second matched pair of resistors are connected between the emitter electrodes of the input transistor of each complementary transistor pair. The interconnection of the second match pairs of resistors is connected to the base electrodes of the other transistors of each complementary transistor pair by a diode. A constant bias current is applied to the diode-transistor interconnection to provide current to the second pair of resistors to develop like potentials. These potentials establish floating bias potentials across the matched resistors in the emitter circuits of the complementary transistor pairs and thereby establish bias current in the transistors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile