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:
Oct. 15, 2013
Filed:
Aug. 18, 2011
Naoya Shibayama, Kawasaki, JP;
Naoya Shibayama, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A reference current generating circuit includes a generator that generates a reference voltage, a bias generator includes plural transistors of a different conductive types from each other and generates a first bias voltage and a second bias voltage, respectively, a first output transistor and a second output transistor of a different conductive type that outputs a current corresponds to a reference current when the first bias voltage or the second bias voltage is supplied thereto, an input-output unit that one terminal connected between the first output transistor and the second output terminal and the other terminal connected to a load, and supplies current from the first output transistor to the load or from the load to the second output transistor, and a switch that turns on/off the first and the second output transistors based on the output voltage of the input-output unit.