| 摘要 |
<p>An apparatus for preventing an accident of inputting an unadaptable AC power supply erroneously to a rectifying means by providing means for selecting a rectifying means being inputted with an AC power supply inputted to a power supply unit depending on preset set information, means for judging the voltage level of the AC power supply inputted to the power supply unit, means for checking matching between the judgment results of the judging means and the voltage level of an input AC power supply represented by the set information, and means for allowing or rejecting an AC power supply inputted to the power supply unit to be inputted to a rectifying means selected by the selecting means.</p> |
