Patent ID: 7933131
Filing Date: 2011-04-26
Classification: H02M

Abstract:
1. A power supply comprising: a power converter to generate a first output power source and a second output power source in response to an external power supply and a power control signal; a power output part to rectify and smooth the output first and second output power sources; a first output controller to receive the rectified and smoothed first output power source from the power output part to generate the power control signal used at the power converter; and a second output controller to receive the rectified and smoothed second output power source feedback from the power output part to control operating modes of the power output part, wherein the power output part comprises a first output part to rectify and smooth the first output power source, and a second output part to rectify and smooth the second output power sources, the second output controller connects the first output part and the second output part, and the second output controller comprises a first switching circuit with one end connected to the first output part and another end is connected to the second output part.