| 摘要 |
<P>PROBLEM TO BE SOLVED: To effectively utilize regenerative electric power generated in a drum motor 25. <P>SOLUTION: Since the regenerative electric power generated in the drum motor 25 for rotationally operating a drum is charged into a charge battery 85, a large-capacity charge battery 85 can be used compared to a conventional apparatus which charges the regenerative electric power to a smoothing capacitor 62. Because of this, the regenerative electric power can be effectively utilized since it becomes unnecessary to waste the regenerative electric power by discharge resistance. Moreover, since the supply origin of the power source to a voltage stabilizer 74 is switched mutually between the charge battery 85 and both smoothing capacitors 62, and a driving power source Vcc is supplied from the voltage stabilizer 74 to a control circuit 12 at each of the turn-on state of an AC power source and the turn-off state of the AC power source, the control circuit 12 can perform the same processing in the turn-off state of the AC power source as that in the turn-on state of the AC power source. <P>COPYRIGHT: (C)2008,JPO&INPIT |
