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:
Aug. 12, 2014
Filed:
Aug. 26, 2011
Satoshi Kodera, Tokyo, JP;
Takahiko Shimizu, Tokyo, JP;
Satoshi Kodera, Tokyo, JP;
Takahiko Shimizu, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
A voltage source generates a power supply voltage Vstabilized such that it matches the voltage level that corresponds to a reference voltage V, and supplies the power supply voltage to a DUT. A current detection circuit generates a detection voltage Vm that corresponds to an output current Ithat flows through the DUT. In the initial state, the reference voltage Vgenerated by a reference voltage generating circuit is set to an initial voltage level that corresponds to an input voltage V. After the output current Iflows, the reference voltage transits to a first voltage level Vobtained by shifting the initial voltage level by a first voltage step that corresponds to the detection voltage Vm. Subsequently, the reference voltage Vtransits to a second voltage level VLobtained by shifting the initial voltage level by a second voltage step that corresponds to the detection voltage Vm.