| 摘要 |
<P>PROBLEM TO BE SOLVED: To stably sine-wave-drive a plurality of motors to reduce noises. <P>SOLUTION: A control means 8 respectively and simultaneously sine-wave-drives a rotary drum driving motor 4A, a compressor driving motor 4B, and an air blowing fan driving motor 4C by three inverter circuits 3A, 3B and 3C controlled by one processor 82. Thus, the stable sine-wave drive which can reduce noise in driving a rotary drum 5, a compressor 6 and an air blowing fan 7, can be achieved. <P>COPYRIGHT: (C)2007,JPO&INPIT |
