| 摘要 |
The power supply apparatus includes a plurality of voltage rising circuits each of which can be driven at a different duty ratio so as to convert and output a voltage output from a direct current power source according to a plurality of loads; and a control circuit which controls an input voltage from the direct current power source to each voltage rising circuit according to drive condition of the voltage rising circuit having the highest duty ratio of the plurality of voltage rising circuits. This configuration can provide a highly productive power supply apparatus capable of reducing a ripple voltage.
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