| 摘要 |
PURPOSE:To decrease power driving a transistor sharply by supplying the base currents of the transistor for controlling a motor by low voltage from one section of batteries wired in series. CONSTITUTION:A DC power source 1 to which a plurality of batteries 1a-1d are wired in series is wired to a DC motor 2 used for a forklift, etc. and a transistor 9 for drive, and the motor 2 is driven by the ON-OFF control of the transistor 9. Transistors 6, 7 wired to the battery 1a are connected to a base of the transistor 9, and the base is controlled by the working signals, etc. of an accelerator pedal of a signal circuit 5. Thus, since the base currents of the transistor 9 are supplied from one section of the batteries of the DC power source 1, power driving the transistor 9 is sharply decreased, and reliability can be improved and a device can be miniaturized. |
