ERROR ANALYSIS METHOD AND CIRCUIT OF POWER SUPPLY UNIT IN THE PDP

摘要

An error analysis method of a power supply unit for a PDP(Plasma Display Panel) and a circuit therefor are provided to enable a user to judge a block with an error accurately even though a random part in the power supply unit has an error. A power supply(100) includes at least one of a power factor correction part, a multi voltage output part, a sustain voltage output part and an address voltage output part. A micro computer(200) senses operation state of each component part of the power supply, and controls the operation state of the power supply according to the result. A switch(SW1) is connected to a first input/output port of the micro computer and converts the mode of the power supply according to on/off state. A light emitting diode(LED) is connected to a second input/output port of the micro computer, and is turned on/off in correspondence to a pulse signal set in the micro computer.