| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electrical apparatus equipped with a noise filter circuit to suppress both high-frequency noise and leakage current without significantly increasing cost and size of mounted components. <P>SOLUTION: An air conditioner includes an inverter circuit 6, a noise filter circuit 4A, and a power supply relay MRY1. The noise filter circuit 4A includes capacitors C3 and C4 and a relay RY1. The capacitor C3 is provided between a line with the power supply relay MRY1 out of the paired power supply lines and a device ground. The capacitor C4 is provided between a line having no power supply relay MRY1 out of the paired power supply lines and the device ground. The relay RY1 switches the connection between a line having no power supply relay MRY1 out of the paired power supply lines and the device ground through the capacitor C4. <P>COPYRIGHT: (C)2009,JPO&INPIT |
