Patent ID: 7449800
Filing Date: 2008-11-11
Classification: H02H,H03K

Abstract:
1. A power control system applied in an electronic device having a transforming module for transmitting power supplied by a power supply to the electronic device when connected to the power supply, the power control system comprising: a switch module electrically connected to the transforming module for turning on or off a power input route whereby the transforming module supplies the power to the electronic device, and keeping the power input route at an off state while the transforming module is not connecting to the power supply, the switch module comprising a first switch unit and a second switch unit electrically connected to the first switch unit; a delay module electrically connected to the transforming module for performing a delay process on the power and generating delay signals that lag behind the power by a predetermined time; and a voltage dividing circuit electrically connected between the first switch unit of the switch module and the delay module for generating a control signal when receiving the delay signals generated by the delay module, wherein the first switch unit, when receiving the control signal generated by the voltage dividing circuit, sends a trigger signal to enable the second switch unit to turn on the power input route when receiving the trigger signal.