| 摘要 |
An electronic apparatus for stably driving a load circuit having operating modes that are vastly different in consumed electric current values and current variations. A supply device supplies a first power. A voltage converting circuit produces a converted power by converting the first power. A control circuit outputs a control signal for controlling the voltage converting circuit and outputting a fourth power based on the converted power. The load circuit is driven by the fourth power and has first and second operating modes and outputs an operating mode signal to the control circuit indicating in which mode it is being operated. The control circuit has first and second output voltage control modes and selects in which of the first and second output voltage control modes an output voltage of the voltage converting circuit is controlled by the operating mode signal.
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