| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply unit wherein a plurality of statuses of voltage of an alternating-current input power supply and a direct-current output power supply are displayed, and from this display, the status of voltage of the alternating-current input power supply and the status of voltage of the direct-current output power supply can be checked at a glance and it can be easily determined whether the unit is in order or out of order. SOLUTION: The power supply unit comprises a status displaying means 3 having: a status of alternating-current voltage displaying means 4 that displays a plurality of statuses of voltage of the alternating-current input power supply Vac; and a status of direct-current voltage displaying means 5 that displays a plurality of statuses of voltage of the direct-current output power supply VD. Thus, a plurality of statuses of voltage of the alternating-current input power supply Vac and the direct-current output power supply VD are displayed, and it can be easily checked at a glance whether the status of voltage of the unit is normal or abnormal. COPYRIGHT: (C)2005,JPO&NCIPI
|
