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:
Mar. 13, 2012
Filed:
Sep. 19, 2008
Takeshi Osawa, Hyogo, JP;
Ryuta Iwasaki, Hyogo, JP;
Takeshi Osawa, Hyogo, JP;
Ryuta Iwasaki, Hyogo, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
The car power source apparatus is provided with a leakage detection circuithaving a batterywith a plurality of battery unitsconnected in series, a first series circuitmade up of first leakage detection resistorsand a first leakage detection switchto connect the first connection nodeof the series connected battery unitsto ground, a second series circuitmade up of second leakage detection resistorsand a second leakage detection switchto connect the second connection nodeof the series connected battery unitsto ground, and voltage detection circuitsto detect voltage of the first leakage detection resistorsand the second leakage detection resistors. Further, the car power source apparatus is provided with a failure detection circuitto control the first leakage detection switchand the second leakage detection switchON and OFF and determine failure of the leakage detection circuitfrom voltages detected by the voltage detection circuits