| 摘要 |
PURPOSE:To reduce the vibration of an object to be controlled by increasing the drive current value of a stopping phase and decreasing a drive current value before the stopping phase. CONSTITUTION:A drive current control signal HP applied as a digital input signal switches an analog switch SW1. In other words, when this drive current control signal HP is 'High', the switch SW1 is connected with a high voltage constant power source +VRH or -VRH side. When 'Low', it is connected with a low voltage constant voltage source +VRL or -VRL side. Accordingly, the magnitude of the output current to the constant current drive circuit is switched by the drive current control signal HP, thereby increasing the drive current of the stopping phase and decreasing the drive current before the stopping phase. |
