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:
Sep. 17, 1996
Filed:
Dec. 20, 1994
Hatsuhiro Kato, Hakodate, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A reference current generator has a bipolar transistor Q1 having an emitter connected to a low-potential power source through a resistor R1, a bipolar transistor Q2 having a collector connected to the collector of the bipolar transistor Q1 and an emitter connected to the low-potential power source, and a bipolar transistor Q3 having a base connected to the bases of the transistors Q1 and Q2, an emitter connected to the low-potential power source, and a collector connected to a constant current source Io having negative temperature coefficient. The reference current generator provides a reference current Iref as the sum of a collector current of the bipolar transistor Q1 and a collector current of the bipolar transistor Q2. The reference current Iref may have a compensated, positive, or negative temperature coefficient as required.