| 摘要 |
PROBLEM TO BE SOLVED: To propose a power supply device and a power supply system capable of being used by connecting a plurality of power supply devices in various modes by a simple configuration.SOLUTION: Provided is a power supply device 11 for outputting a power supply by a desired output voltage V1, the power supply device comprising: a common terminal COM provided for the transmission of a reference potential; a reference voltage terminal VC provided for the transmission of a reference voltage V4; a voltage-current conversion circuit 21 for driving resistors R3, R4 by performing voltage-current conversion processing on an input voltage V4 and thereby changing a reference potential of the input voltage V4 from a potential of the common terminal COM to a reference potential of an output voltage V1 before generating an intermediate processing-use reference voltage V5; an error amplification circuit 4 for generating a control voltage V2 for the output voltage V1 on the basis of the intermediate processing-use reference voltage V5; and a power supply output unit 2 for outputting a power supply by varying the output voltage 1 according to the control voltage V2. |
