Method and apparatus for charging a battery
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United States of America Patent
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-
Aug 15, 2000
Grant Date -
N/A
app pub date -
Oct 8, 1999
filing date -
Nov 3, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus for charging a battery includes a first electrical connection adapted to connect to a positive terminal of the battery and a second electrical connector adapted to connect to a negative terminal of the battery. An electrical charging source couples to the first and second electrical connectors to charge the battery. Voltage measurement circuitry couples to the first and second electrical connectors and responsively provides a voltage output related to voltage across the battery. Current measurement circuitry also couples to the first and second electrical connectors and responsively provides a current output related to electrical current through the battery. State of charge measurement circuitry responsively provides a state of charge output as a function of the voltage output and the current output.
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