Patent ID: 6603223
Filing Date: 2003-08-05
Classification: H02M,Y02B

Abstract:
An electronic apparatus comprising:an electricity supply device for supplying power; a voltage converting circuit for converting the supplied power into a converted power having a different voltage from the supplied power, and outputting the converted power; a control circuit for controlling the voltage converting circuit such that the converted power has a predetermined value; and a load circuit driven by the converted power; wherein the control circuit has a first output voltage control mode and a second output voltage control mode, the second output voltage control mode having a consumed electric current smaller than that of the first output voltage control mode and a slower control speed than that of the first output voltage control mode; the load circuit has a first operating mode and a second operating mode, the second operating mode having a consumed electric current smaller than that of the first operating mode; and the control circuit operates in the second output voltage control mode when the load circuit is in the second operating mode.