APPARATUS FOR SUPPLYING POWER AND DIGITAL IMAGE PROCESSING APPARATUS THEREWITH

摘要

A power supply device and a digital image processing device with the same are provided to stably generate necessary power even though a level of supplied power is changed. A battery(410) supplies the first input power of the first level voltage. A voltage boosting unit receives power from the battery. The voltage boosting unit boosts supplied power to supply the second input power of the second level voltage. Switches select the first input power or the second input power. A voltage dropping unit(440) drops the first input power or the second input power to generate output power. A switch controller(450) senses a level of the first input power. The switch controller controls the switches according to a level of the first input power.