Electronic device

摘要

An electronic device having at least a loop-shaped electric conductor (14) generating electric power by electromagnetic induction is provided. The electronic device includes a voltage-detecting unit (51), a voltage-comparing unit (50) and a separating unit (43). The voltage-detecting unit (51) is configured to detect a voltage generated in the electric conductor (14) by the electromagnetic induction. The voltage-comparing unit (50) is configured to make a comparison between the voltage detected by the voltage-detecting unit (51) and a predetermined reference voltage and determining whether the voltage detected by the voltage-detecting unit exceeds the predetermined reference voltage. The separating unit (43) is configured to break an electric connection between the electronic conductor (14) and an electronic circuit (44) connecting to the electric conductor (14) when the voltage-comparing unit (50) determines that the voltage detected by the voltage-detecting unit exceeds the predetermined reference voltage.