Electronic device

Abstract

A USB electronic device with a power source loaded therein, which is connected to another USB electronic device via a USB connector, comprises a voltage detection unit that detects a voltage at an identification pin of the USB connector, a power supply control unit that controls connection/disconnection between a power supply pin of the USB connector and the power source based upon a change in voltage at the identification pin detected by the voltage detection unit and an allow/disallow control unit that executes control to allow/disallow detection of the voltage change at the identification pin.

1 . A USB electronic device with a power source loaded therein, which is connected to another USB electronic device via a USB connector, comprising:
 a voltage detection unit that detects a voltage at an identification pin of the USB connector;   a power supply control unit that controls connection/disconnection between a power supply pin of the USB connector and the power source based upon a change in voltage at the identification pin detected by the voltage detection unit; and   an allow/disallow control unit that executes control to allow/disallow detection of the voltage change at the identification pin.