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. 16, 1985
Filed:
Sep. 28, 1983
Hiromi Kusakabe, Yokohama, JP;
Abstract
A differential amplifier circuit producing sufficient output current with a broad linear working range, which includes first and second transistors coupled at their emitters in differential amplifier configuration, an input circuit means connected between the bases of the first and second transistors, third and fourth transistors connected to the collectors of the first and second transistors constituting collector loads of the first and second transistors respectively, first resistor inserted between the bases of the third and fourth transistors, second and third resistors respectively inserted between the base and collector of each of the third and fourth transistors, and an output circuit means connected to the third and fourth transistors.