US Patent 7283738 Digital camera and power supply apparatus used therefor

A power supply apparatus, including a power supply configured to supply power to a plurality of devices or circuits to operate said plurality of devices or circuits; and a moderation mechanism configured to control the power supplied to the plurality of devices or circuits, wherein the moderation mechanism is configured to control the power supplied to the plurality of devices or circuits such that the plurality of devices or circuits does not operate simultaneously at the time when the plurality of devices or circuits initiates its operation or stops.