ELECTRONIC SYSTEM, ELECTRONIC DEVICE AND POWER SUPPLY DEVICE

摘要

Provided is an electronic system wherein power is accurately supplied even with a power delivery line resistance and a connector contact resistance, and furthermore, a plurality of electronic devices having requiring different power supply voltages can be handled with one power supply device. The electronic system is provided with an electronic device (50), and a power supply device (10) which is arranged to be connected/removed to and from the electronic device (50) and supplies power through a cable when connected. The electronic device (50) is provided with a first detection circuit (51) for performing detection relating to the supply amount of the power supply and outputting a first detection signal, and a control signal terminal.