Patent ID: 8218282

Claim:
A portable electronic device, comprising: an audio file playing unit; and a surge protector device connected to the audio file playing unit, wherein the surge protector device includes a protector module connected to an audio file playing unit and a processor module connected to the protector module and the audio file playing unit, and the processor module detects electric surges in the audio file playing unit and controls the protector module to filter the detected electric surges when the audio file playing unit plays audio files; and wherein the protector module includes a surge protection chip, a control connector, an input connector, and two output connectors, the surge protection chip being a transistor having two sources, two gates and two drains; and the sources are both grounded, the gates are both connected to the processor module via the control connector, the drains are both connected to the input connector, and the output connectors are respectively connected to the drains, such that the surge protection chip is connected to the processor module and the audio file playing unit, and the processor module controls the surge protection chip to filter electric surges in the audio signals played by the audio file playing unit.