| 摘要 |
As a result of a path being connected to an input terminal to allow a first intermediate voltage from a power-side regulator or another external source that does not pass through the power-side regulator to be selectively inputted into any supply-side regulator, a supply voltage can be generated based on the inputted voltage. Therefore, as a result of the relevant supply-side regulator being connected to a path by which the other external source is inputted, a supply voltage having a voltage value differing from that when the first intermediate voltage is inputted can be generated. As a result of the voltage inputted into the supply-side regulator being changed, only the voltage value of the supply voltage generated by the supply-side regulator is changed. Therefore, the variation of the voltage value of the supply voltage that can be provided by a power supply unit can be changed.
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