| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic system to achieve accurate power supply even if there are power supply line resistances or connector contact-resistances, and further, to cope with a plurality of electronic devices having different required power supply voltages, with one power supply device. SOLUTION: The electronic system is provided with the electronic device 50, and the power supply device 10 that is provided connectably/removably to/from the electronic device 50 so as to supply power via a cable when connected with the electronic device. The electronic device 50 is provided with a first detection circuit 51 which detects a power supply amount so as to output a first detection signal, and a control signal terminal T2 that sends the first detection signal to the power supply device 10 when connected with the power supply device. The power supply device 10 is provided with an output variable power supply circuit 11, and a control circuit 12 that controls output of the power supply circuit 11 on the basis of the first detection signal. COPYRIGHT: (C)2008,JPO&INPIT
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