| 摘要 |
<P>PROBLEM TO BE SOLVED: To offer a leakage current controller for an air conditioner which can simultaneously negate leakage currents that are generated by switching operations of an inverter and a half bridge type converter. <P>SOLUTION: This leakage current controller is equipped with a first control voltage generating means which generates a voltage of an antiphase opposite to that of a voltage to the ground generated by the half bridge type converter 1, a second control voltage generating means which generates a voltage of an antiphase opposite to that of a voltage to the ground generated by the inverter part 2, and an equivalent impedance part 10 which has equivalent impedance equivalent to the leakage impedance of a compressor motor 3 and which receives the input of the added-up output voltage of the first and second control voltage generating means and outputs a current for offsetting the leakage current of the compressor motor 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
