Electronic device

This electronic device (3) includes a control portion (37) receiving DC power through an AC-DC conversion portion (32a) from an AC power supply and a connection portion (31) connected to an external device (2) in a state where the connection portion can receive DC power from the external device, while the control portion is configured to perform control of stopping receiving of the DC power received by the control portion through the AC-DC conversion portion from the AC power supply when the control portion receives DC power from the external device through the connection portion in a standby state.