| 摘要 |
PROBLEM TO BE SOLVED: To prevent an overcurrent more than necessary from flowing to a load circuit to break equipment parts by performing a constant current control for both of a charge current to a secondary battery built in equipment and a peak current required at quick traverse or quick return. SOLUTION: This DC power unit controls secondary output voltage into a constant voltage, and also this performs constant current control of the two kinds of a 2.5A constant-current control which limits the peak current of the equipment and 1.6A current control which limits the charge to the secondary battery. Moreover, when the output voltage is low at or below a specified value or at the time of an overvoltage, this stops the constant current operation. Furthermore, a current/voltage stabilization circuit, provided on the secondary side for it, is integrated. COPYRIGHT: (C)2005,JPO&NCIPI
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