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DC/DC converter for plasma display panel, power supply device comprising the DC/DC converter, and plasma display panel comprising the power supply device
DC/DC converter for plasma display panel, power supply device comprising the DC/DC converter, and plasma display panel comprising the power supply device
DC / DC converter of the plasma display panel according to the present invention includes a first voltage input; The primary side and the secondary side having a plurality of windings are stacked in series, and the variable pressure unit for outputting a direct current voltage by the turns ratio of the transformer primary winding and each layer of the secondary side of the single winding; A plurality of output ports of the take-off for each high level DC voltage output from each of the layers of the secondary winding; Output voltage detection unit for detecting selection by any one of a voltage at the output by the input signal from the outside; PWM controller for generating a control signal by comparing the output voltage detection result and a reference signal; And is controlled to a first negative voltage transformer primary side in accordance with a signal / block parts characterized in that it comprises switching to. ; According to the present invention, may vary the output voltage according to a user's selection so, saving development time and cost of the power supply required to meet the specifications of the user, and can satisfy various users' needs.
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