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:
Aug. 15, 1989
Filed:
Jun. 02, 1988
Tatsuo Tanaka, Yokohama, JP;
Yoshihiro Yoshida, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A current mirror circuit which comprises a current input terminal, a current output terminal, an input-current supplying section, a first transistor, and a second transistor. The input-current supplying section supplies an input current to the current input terminal. The first transistor has a collector coupled to the current input terminal, an emitter coupled to a first power-supply potential terminal, and a base. The second transistor has a collector connected to the current output terminal, an emitter coupled to the first power-potential terminal, and a base connected to the base of the first transistor. The current mirror circuit further comprises a third transistor and a current mirror section. The third transistor a collector, a base coupled to the collector of the first transistor, and an emitter coupled to the first power-supply potential terminal. The current mirror section supplies a current proportionate to the collector current of the third transistor, to the bases of the first and second transistors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile