| 摘要 |
<P>PROBLEM TO BE SOLVED: To stabilize power output, using an inexpensive configuration. <P>SOLUTION: A power supply device is provided with a transformation circuit (E1b), having a transformer (T1) step-up and step-down AC voltage and outputting power according to the power input, a feedback circuit (E1c), having a feedback fixed resistor (R4') controlling power output which is fed back to a power input-side and feeding back power output of the transformation circuit (E1b) to power input for controlling the power output of the transformation circuit (E1b) to be constant, an input/output relation storage means for storing the input/output relation of the power input and the power output; and a power control means inputting power corresponding to power output, by referring to the input/output relation stored in the input/output relation storage means. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
