Patent ID: 7332869
Filing Date: 2008-02-19
Classification: G09G,H02M,H05B,Y02B

Abstract:
1. A power supply apparatus comprising: an inverter controller outputting an externally provided direct current in response to a predetermined control signal; a power transforming part converting the direct current into an alternating current, and transforming voltage of the alternating current to output a first polarity current and a second polarity current; and a connecting part outputting the first polarity current to a first end portion of a load through a first terminal, the connecting part outputting the second polarity current to a second end portion of the load through a second terminal, and the connecting part having a third terminal to receive a sensed signal in response to the first or second polarity currents so as to output the sensed signal, wherein the first terminal is spaced apart from the second terminal by a first insulating distance, and the third terminal is spaced apart from the first or second terminals adjacent to the third terminal by a second insulating distance.