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:
Jun. 30, 2015
Filed:
Feb. 28, 2013
Applicant:
Advantest Corporation, Tokyo, JP;
Inventors:
Takashi Kusaka, Tokyo, JP;
Masahiro Ishida, Tokyo, JP;
Assignee:
ADVANTEST CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01); G01R 31/319 (2006.01); H02M 3/156 (2006.01); H02M 1/00 (2007.01);
U.S. Cl.
CPC ...
G01R 31/2832 (2013.01); G01R 31/31924 (2013.01); H02M 3/156 (2013.01); H02M 2001/0019 (2013.01);
Abstract
A main power supply is arranged such that its output terminal Po is connected to a power supply terminal of a DUT via a power supply line, and is configured to feedback control an output voltage Voutput from the output terminal such that a detection value V' that corresponds to a power supply voltage Vat the power supply terminal approaches a target value V′. When a test pattern is supplied to the DUT, a power supply control unit is configured to feedforward control the main power supply such that the power supply voltage Vapproaches a predetermined target waveform V.