Patent ID: 7917783
Filing Date: 2011-03-29
Classification: H03K

Abstract:
1. A power switch device for an electronic system having a power module, the power switch device comprising: a first switch for activating a first signal; a second switch for activating a second signal; a south bridge chip for generating an on or off signal corresponding to an on or off state of the electronic system; and a logic judging module electrically connected to the first switch, the second switch, and the south bridge chip for receiving the first signal, the second signal, and the on or off signal of the electronic system, and transmitting a control signal to the south bridge chip, wherein when the electronic system is off, the south bridge chip transmits the off signal, and if the logic judging module receives the first signal and the off signal, then the south bridge chip switches on the power module according to the control signal so as to switch on the electronic system, and when the electronic system is on, the south bridge chip transmits the on signal, and if the logic judging module receives the first signal, the second signal, and the on signal, then the south bridge chip switches off the power module according to the control signal so as to switch off the electronic system.