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:
Jul. 10, 2007
Filed:
Sep. 28, 2005
Hirofumi Yudahira, Ibusuki, JP;
Yasushi Matsukawa, Toyohashi, JP;
Hirofumi Yudahira, Ibusuki, JP;
Yasushi Matsukawa, Toyohashi, JP;
Panasonic EV Energy Co., Ltd., Shizuoka, JP;
Abstract
A power supply controller apparatus is provided for use in a power supply apparatus including a battery assembly. The power supply controller apparatus includes a controller that controls supplying power to a load from said battery assembly through a capacitor connected between first and second contactors by turning on and off each of contactors. The controller detects whether or not each contactor is welded based on an output signal from one output terminal of both ends of the capacitor, when the each contactor is controlled to be turned off and an AC signal is applied to one input terminal of (a) one end of the battery assembly, (b) the other end of the battery assembly, and (c) each connection point between secondary batteries of the battery assembly.