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. 02, 2004
Filed:
Aug. 20, 2002
Masaki Yugou, Kadoma, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
A power source device comprises a cell unit comprising a plurality of cells . Connected between a positive side terminal and a negative side terminal of the cell unit is a first current line having two voltage dividing resistors interposed therebetween, and is a second current line having two protection resistors and two detection resistors interposed therebetween. An intermediate point of the second line is grounded to a grounding via an insulation resistor . The voltage difference between a voltage (V , V ) detected by the detection resistors and a reference voltage (Vc) obtained from a point of connection between the voltage dividing resistors is input to two Op-Amps serving as the input voltage (V IN, V IN). Based on the output voltage (V OUT, V OUT) obtained from the Op-Amps , leakage occurrence is detected.