Phase current estimation for switching power converters
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United States of America Patent
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Jun 12, 2018
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N/A
app pub date -
Jun 21, 2016
filing date -
Feb 14, 2014
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Abstract
A phase current estimator for a switching power converter includes analog circuitry for generating a phase current estimate error by comparing a phase current of the switching power converter to an analog representation of an estimate of the phase current, the phase current having a sawtooth or triangular waveform. The phase current estimator further includes digital circuitry for revising the phase current estimate based on the phase current estimate error and a plurality of parameters associated with operation of the switching power converter, so that the phase current estimate tracks the sawtooth or triangular waveform of the phase current.
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