| 摘要 |
PURPOSE:To make a power source with large capacity unnecessary by providing a main power source for supplying a load with power and an auxiliary power source to be connected with said load through a switching means only in case of overload to allot a part of load to said auxiliary power source at the time of overload. CONSTITUTION:A first power source 1 for always supplying a load with power and a second power source 2 for supplying said load with power only in case of overload are provided to constitute this apparatus. In this constitution, when a motor-ON signal is inputted from a controller 7, a switch 5 is closed and a motor 8 is turned ON to supply current from said power sources 1 and 2 to said motor 8. Then, in further t0 seconds after the lapse of time t1 during which a starting current I2 flows, the switch 5 is opened and the motor 8 is driven only by the power source 1 by means of a load average current I1. After that, when a motor-OFF timing signal is inputted, the motor 8 is turned OFF. |
