REDUCTION OF INRUSH CURRENT DUE TO VOLTAGE SAGS

摘要

Various systems and methods are provided for minimizing an inrush current toa load (233) after a voltage sag in a power voltage (100). In one embodiment,amethod is provided comprising the steps of applying a power voltage (100) to aload(233), and detecting a sag (106) in the power voltage (100) during steady-stateoperation of the load (233). The method includes the steps of adding animpedance tothe load (233) upon detection of the sag (106) in the power voltage (100), andremoving the impedance from the load (233) when the power voltage (100) hasreached a predefined point in the power voltage cycle after the power voltage(100)has returned to a nominal voltage.