Determination of inductor current during reverse current in a boost converter
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United States of America Patent
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Mar 6, 2018
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app pub date -
Feb 18, 2014
filing date -
Jul 26, 2013
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Abstract
During operation of a boost converter conditions may exist that result in a reverse current through the boost converter, such as when a load drop from the boost converter occurs. During the reverse current period, inductance value determinations made during a forward current period may be used to estimate a magnitude of the reverse current and this estimate used by a controller to control the boost converter and return the boost converter to normal operation. The controller may control the boost converter by changing a ratio of charging and discharging time for an inductor of the boost converter, decreasing a bandwidth of the boost converter, and/or increasing a resistance of the boost converter.
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