THE POWER SUPPLY DEVICE AND THE METHOD FOR SUPPLYING POWER

摘要

The present invention provides a power supply device which includes a control unit which includes a control integrated circuit which outputs a switching signal according to a control signal and a switching element which selectively outputs the output of an input unit by the switching signal, a transformer unit which transforms the output of the control unit and outputs the transformed result, at least one DC-DC converter which generates a reference voltage by receiving the output of the transformer unit and converting the output to a predetermined level with a DC-DC method, and a protection unit which turns off the DC-DC converter if a short circuit is generated in the output terminal of the DC-DC converter. Therefore, the stress of a component is reduced by blocking the inputted control signal by forming a protection circuit in the output terminal when the short circuit due to static electricity is generated in the output terminal.