Method and apparatus for measuring voltage of battery module...

Details Method and apparatus for measuring voltage of battery module... Method and apparatus for measuring voltage of battery module...

2005-08-23

2005-08-23

Tso, Edward H. (Department: 2838)

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

Reexamination Certificate

active

06933728

ABSTRACT:
While measuring a value of a battery module voltage of an electric vehicle using a differential amplifier circuit having at least one resistor, an actual effective gain of the differential amplifier circuit depending on the resistivity of the resistor is measured and the output voltage of the differential amplifier is modified based on the actual effective gain to calculate the battery module voltage. In this way, accuracy of measuring the battery module voltage is enhanced.

REFERENCES:
patent: 5196833 (1993-03-01), Kemp
patent: 5736831 (1998-04-01), Harrington
patent: 5808469 (1998-09-01), Kopera
patent: 5945829 (1999-08-01), Bertness
patent: 6313637 (2001-11-01), Lino et al.
patent: 2000-088898 (2000-03-01), None
patent: 2002-139522 (2002-05-01), None
patent: 2002-199510 (2002-07-01), None

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