| 摘要 |
<p>PURPOSE: To save energy when a motor is driven by dividing a plurality of batteries in series into two or more units, connecting the units in parallel, connecting both ends to the motor, and regenerating the generating power of the motor. CONSTITUTION: When a motor 2 is driven, switches 3 are set in a discharge mode, and battery units 1a and 1b are connected in series. The voltage of 12V is supplied to the motor 2 from both ends. Meanwhile, when the motor 2 is braked, the switches 3 are turned to the side of a charging mode, and the battery units 1a and 1b are connected in parallel. The voltage between both ends is set at 6V, which is lower than 12V of the rated drive voltage of the motor 2. When the generated voltage by the motor 2 is sufficiently higher than 6V, the generated power of the motor 2 charges the battery units 1a and 1b through a reverse-current preventing diode 4 and a current limiter circuit 5. Thus, the energy is regenerated, and the drive time is elongated.</p> |
