| 摘要 |
PROBLEM TO BE SOLVED: To provide a switching power supply unit capable of suppressing fluctuations in an output circuit of a magnetic amplifier even if load current changes suddenly. SOLUTION: This switching power supply unit 17 comprises an output voltage detecting means 18 for detecting each of output voltages of a first and a second output means 3, 4, and a control means 6 which controls ON-OFF operations by transmitting a control signal to a control terminal of a switching means FET1 so that each of the output voltages of the first and second output means 3, 4 may be constant.
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