Patent ID: 7944254

Claim:
A switching circuit comprising: a first switching module comprising a switch and a first transistor, wherein an emitter of the first transistor is connected to a first power source, a base of the first transistor is grounded via the switch, and connected to the emitter of the first transistor via a first resistor, a collector of the first transistor is grounded via a second resistor, the base of the first transistor functions as a first reset terminal; a first relay module comprising an input terminal connected to the collector of the pnp transistor, and an output terminal; a second switching module comprising a second transistor, wherein a collector of the second transistor is connected to the output terminal of the first relay module, a base of the second transistor is connected to the base of the first transistor, an emitter of the second transistor is connected to the first power source via a third resistor; a second relay module comprising an input terminal connected to the emitter of the second transistor, and an output terminal functioning as a second reset terminal; and a processing module comprising two input terminals connected to the first and second reset terminals respectively, wherein the processing module resets a computer system with a first type or a second type according to voltages of the first and second reset terminals.