Electronic battery tester
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Oct 30, 2001
Grant Date -
Jun 7, 2001
app pub date -
Mar 26, 1999
filing date -
Jan 13, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A microprocessor couples to a voltage sensor through an analog to digital converter. The voltage sensor is adapted to be coupled across terminals of a battery. A small current source is also provided and adapted to be coupled across the terminal to the battery. The current source is momentarily applied to the battery and the resulting change in voltage is monitored using the microprocessor. The microprocessor calculates battery conductance based upon the magnitude of the differential current and the change in voltage and thereby determines the condition of the battery.
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