| 摘要 |
PURPOSE: A power supply device is provided to reduce the malfunction due to temperature increase by simultaneously using a first sensing switching part and a second sensing switching part. CONSTITUTION: An input voltage is inputted to the first side of a transformer(210). An output voltage is outputted to the second side of the transformer. A sensing part(240) senses an output voltage. A first sensing switching part(220) is turned on and off by the output voltage that is outputted form the transformer. A second sensing switching part(230) is turned on and off by the output voltage that is sensed by the sensing part. The second sensing switching part controls an OCP(Over Current Protection) point voltage according to the operation of the first sensing switching part.
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