Abstract: The present general inventive concept describes a switching mode power supply (SMPS) and a method of supplying power by using the same. An SMPS that may be used in an image forming apparatus can include a transformation unit to transform an alternating-current (AC) voltage input to the SMPS, into at least one direct-current (DC) voltage by using a transformer, a first output voltage output unit to output the transformed DC voltage as a first output voltage of the SMPS, a first switching unit to prevent output of the second output voltage, and a second switching unit to prevent output of the second output voltage.

Abstract: The present general inventive concept describes a switching mode power supply (SMPS) and a method of supplying power by using the same. An SMPS that may be used in an image forming apparatus can include a transformation unit to transform an alternating-current (AC) voltage input to the SMPS, into at least one direct-current (DC) voltage by using a transformer, a first output voltage output unit to output the transformed DC voltage as a first output voltage of the SMPS, a first switching unit to prevent output of the second output voltage, and a second switching unit to prevent output of the second output voltage.

Abstract: An LCD driving inverter to drive a plurality of lamps mounted in an LCD module, includes: a main substrate having an input part connected to an external power source, a conversion circuit converting a direct current provided from the input part into an alternating current, a first transformer connected to the conversion circuit to convert voltage from the conversion circuit and a first output part providing the voltage from the first transformer to at least one of a plurality of lamps; a subsidiary substrate including a second transformer connected to the conversion circuit to convert the voltage from the conversion circuit and a second output part providing the voltage from the second transformer to at least another one of the plurality of lamps; and at least one spacing member disposed between the main substrate and the subsidiary substrate so that the subsidiary substrate is mounted to be spaced from a surface of the main substrate.

Abstract: An LCD driving inverter to drive a plurality of lamps mounted in an LCD module, includes: a main substrate having an input part connected to an external power source, a conversion circuit converting a direct current provided from the input part into an alternating current, a first transformer connected to the conversion circuit to convert voltage from the conversion circuit and a first output part providing the voltage from the first transformer to at least one of a plurality of lamps; a subsidiary substrate including a second transformer connected to the conversion circuit to convert the voltage from the conversion circuit and a second output part providing the voltage from the second transformer to at least another one of the plurality of lamps; and at least one spacing member disposed between the main substrate and the subsidiary substrate so that the subsidiary substrate is mounted to be spaced from a surface of the main substrate.