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. 29, 2016
Filed:
Dec. 15, 2015
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Hideki Oku, Isehara, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
An amplifierincluding a first transistorwhich is a common base transistor and whose emitter current fluctuates in accordance with fluctuations in an input current that is input to the emitter, a second transistorwhich is a common base transistor, whose emitter is connected to the collector of the first transistor, and whose collector voltage fluctuates in accordance with fluctuations in the emitter current of the first transistor, a third transistorwhich is a common collector transistor and whose base is connected to the collector of the second transistor, and an amplification unitto which an emitter voltage of the third transistoris input and which outputs an amplified voltage obtained by amplifying the emitter voltage of the third transistor, wherein the base resistance of the second transistoris higher than the base resistance of the first transistor