| 摘要 |
PROBLEM TO BE SOLVED: To overcome the problem in a generation-type brake device braked by consuming the regeneration power of a motor, which are caused by the fact that a current to be drawn from an object to be discharged is controlled by turning on and off the switching elements, and an output voltage of the object to be discharged cannot sufficiently follow a speed signal and a power factor lowers, so that a proper brake force cannot be obtained.SOLUTION: The discharge control device includes an adjustment part which receives a command value (speed signal) and the voltage of the object to be discharged, and outputs a signal for setting a difference between the command value and the voltage to be zero, and a control unit which receives an output signal of the adjustment part is input, and controls a discharge current in a stepless manner. The discharge current is controlled in the stepless manner, thereby the voltage of the object to be discharged can exactly follow the command value. |
