| 摘要 |
A peripheral device for controlling power in a portable electronic device. The peripheral device is coupled to an output port of the portable electronic device to control voltages of a first pin and a second pin. After a period of no use, the portable electronic device enters sleep mode. After an input signal is received by the peripheral device, the portable electronic device is woken and enters work mode. The peripheral device comprises an input device controller and an interface circuit. The input device controller comprises a gate connecting port, a clock signal port, an input port and a port for detecting voltage The interface circuit comprises a first diode, a second diode, a capacitor, a resistor and a PNP transistor.
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