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:
Nov. 26, 1985
Filed:
Nov. 08, 1984
Tatsuo Tanaka, Yokohama, JP;
Kabushiki Kaisha Toshiba, , JP;
Abstract
A differential amplifier is disclosed which comprises: a first differential amplifying circuit comprising first and second transistors of an NPN type, the collector of the first transistor constituting an output terminal of the amplifier; a second differential amplifying circuit comprising third and fourth transistors of the NPN type whose bases are inverting and noninverting input terminals, respectively, the base of the third transistor being connected to the collector of the second transistor, and the base of the fourth transistor being supplied with a bias voltage; a first load circuit for the first differential amplifying circuit, the first load circuit comprising a fifth transistor of a PNP type forming a collector load for the second transistor and a sixth transistor of the PNP type for forming a collector load for the first transistor, the bases of the fifth and sixth transistors being connected to the collector of the fourth transistor; and a second load circuit for the second differential amplifying circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile