Abstract: There is provided a driver for a plasma display panel having a separated board structure that can reduce parasitic resonance by shortening the length of a cable used for power transmission by separating a board having a Y electrode switch thereon from a board having an X electrode switch thereon.

Abstract: There is provided a driver for a plasma display panel that can perform power transmission by setting different paths for an address period and a sustain period. The driver for a plasma display panel may include: a power supply part converting commercial AC power into predetermined driving power; a driving part switching the driving power from the power supply part during the sustain period to supply the switched driving power to the plasma display panel; and a path setting part setting a path through which the driving power from the power supply part is transmitted to the driving part during the sustain period and setting a charging path through which a capacitor is charged with the driving power from the power supply part during the address period.

Abstract: There is provided a driver for a plasma display panel having a separated board structure that can reduce parasitic resonance by shortening the length of a cable used for power transmission by separating a board having a Y electrode switch thereon from a board having an X electrode switch thereon.

Abstract: A power circuit protection apparatus halting an operation of a pulse width modulation (PWM) controller when an abnormal state is generated due to an open or short in a secondary side winding of a transformer is provided. The apparatus includes: a transformer; an output unit which receives voltages output from the transformer, rectifies and smoothes the received voltage, and outputs the rectified and smoothed voltage; a PWM controller which receives the voltage output from the output unit and outputs a PWM signal with an adjusted duty cycle; a voltage sensing unit which senses voltages induced in the secondary side coils of the transformer; a blocking unit which blocks interference between sensed voltages and a first reference voltage; and a comparison unit which compares a variation value of the first reference voltage with respect to a second reference voltage and outputs a signal determining an on/off operation of the PWM controller.

Abstract: A power circuit protection apparatus halting an operation of a pulse width modulation (PWM) controller when an abnormal state is generated due to an open or short in a secondary side winding of a transformer is provided. The apparatus includes: a transformer; an output unit which receives voltages output from the transformer, rectifies and smoothes the received voltage, and outputs the rectified and smoothed voltage; a PWM controller which receives the voltage output from the output unit and outputs a PWM signal with an adjusted duty cycle; a voltage sensing unit which senses voltages induced in the secondary side coils of the transformer; a blocking unit which blocks interference between sensed voltages and a first reference voltage; and a comparison unit which compares a variation value of the first reference voltage with respect to a second reference voltage and outputs a signal determining an on/off operation of the PWM controller.