Method and circuitry to adjust, correct and/or compensate an SOC of a battery based on relaxation time thereof
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United States of America Patent
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Oct 17, 2017
Issued Date -
N/A
app pub date -
Apr 11, 2015
filing date -
Jun 24, 2010
priority date (Note) -
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Abstract
The present inventions, in one aspect, are directed to techniques and/or circuitry to adjust, correct and/or compensate a state of charge of the battery using the data which is representative of the relaxation time (e.g., full relaxation time) of the battery. The techniques and/or circuitry may determine the data which is representative of a relaxation time based on or using: (i) the rate of decay of the voltage at the terminals of the battery after terminating application of the charge current to the battery, (ii) a voltage which is constant or substantially constant after termination of the charge current and/or (iii) an amount of time associated with the decay of the voltage at the terminals of the battery to at least a measured or predetermined voltage. Notably, the charge signal or current may include a plurality of pulses.
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