REDUCTION OF INRUSH CURRENT DUE TO VOLTAGE SAGS WITH TIMING FOR INPUT POWER VOLTAGE RECONNECTION
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United States of America Patent
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app pub date -
Oct 17, 2011
filing date -
Oct 24, 2005
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Abandoned
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Abstract
Various systems and methods are provided for minimizing an inrush current to a load after a voltage sag in a power voltage. In one embodiment, a method is provided comprising the steps of applying a power voltage to a load, and detecting a sag in the power voltage during steady-state operation of the load. The method includes the steps of adding an impedance to the load upon detection of the sag in the power voltage, and removing the impedance from the load when the power voltage has reached a predefined point in the power voltage cycle after the power voltage has returned to a nominal voltage.
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