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:
May. 04, 2010
Filed:
Jun. 26, 2007
Ryuji Yamamoto, Yao, JP;
Ryuji Yamamoto, Yao, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A voltage regulatorincludes: a level shifting circuit unitshifting a first voltage, which is a voltage level of a first power source, to a target value of a second voltage to output the shifted first voltage; a voltage-to-current converting circuit unitvarying a magnitude of an output current to output the current while changing a direction of a current using a variable power sourcevarying a voltage to larger and smaller values than a center voltage of an arbitrarily variable voltage range; and an adder-subtracter circuit unithaving a first terminal on one side, the first terminal being connected to an output terminal of the level shifting circuit unit, and a second terminal on the other side, the terminal being connected to a resistance element disposed between the second terminal and an output terminal, the resistance element allowing an output current of the voltage-to-current converting circuit unit to flow therethrough as a bias current, wherein a second voltage Vis output from an output terminal