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:
Feb. 11, 2014
Filed:
May. 11, 2012
Kouhei Yamada, Matsumoto, JP;
Kouhei Yamada, Matsumoto, JP;
Fuji Electric Co., Ltd., Kawasaki-Shi, JP;
Abstract
A voltage-to-current converter circuit has a differential input unit, and is provided with an input offset voltage, wherein the temperature characteristics of the differential input unit and input offset voltage are substantially flat. A current is supplied wherein a second fixed current having positive temperature characteristics is added to a first fixed current having flat characteristics as a bias current to the differential input unit, to balance the temperature characteristics of the differential input unit and the temperature characteristics of the bias current, thus causing the differential input unit transconductance temperature characteristics to be substantially zero (e.g., substantially flat).
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