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:
Nov. 16, 2010
Filed:
Sep. 27, 2007
Takeshi Oosawa, Takasago, JP;
Kimihiko Furukawa, Kakogawa, JP;
Takeshi Oosawa, Takasago, JP;
Kimihiko Furukawa, Kakogawa, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
The car power source apparatus is provided with a driving batterythat supplies power to the car's electric motor, a voltage detection circuitthat measures the voltage of batteriesin the driving battery, a plurality of voltage detection linesconnected in parallel between the input-side of the voltage detection circuitand driving batteryvoltage detection nodes, and a decision circuitthat determines if a voltage detection lineis open circuited from the voltage measured by the voltage detection circuit. Each voltage detection linehas a voltage drop resistorconnected in series. The voltage detection circuitis provided with input resistorson its input-side. The car power source apparatus makes computations on the voltage measured by the voltage detection circuit, which is from the voltage divider formed by the input resistorand voltage drop resistors, to detect voltage detection lineopen circuit.