Sensorless self-tuning digital current programmed mode (CPM) controller with multiple parameter estimation and thermal stress equalization
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United States of America Patent
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Sep 17, 2013
Grant Date -
Sep 6, 2012
app pub date -
Mar 3, 2011
filing date -
Mar 3, 2011
priority date (Note) -
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Abstract
A multiphase controller for a DC-to-DC power supply includes logic to estimate parameters for multiple phases that provide a combined output at a load. The estimated parameters include a current estimate and an effective resistance estimates for each phase so that a power estimate for each phase can be produced. The logic adjusts the operation of the phases using the power estimate for each phase.
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