Method and apparatus for active inrush current control for AC to DC converters

摘要

The present invention provides for an apparatus and corresponding method for controlling inrush current in an AC-DC power converter by providing a control circuit to limit inrush current efficiently during cold startup, warm startup, and power line disturbance conditions. The present invention controls inrush current without the need for an extra series lossy dissipative device and without causing undesirable voltage surges at the input of the DC-DC converter stage. The preferred embodiment includes use of the present invention for AC-DC converters having active power factor correction.