Voice coil motor position motion control device

The invention discloses a voice coil motor position motion control device. Motor position information, motor speed information, and motor current information are obtained by detecting the position of a voice coil motor; a position error is calculated according to a target position and motor position information; and if an absolute value of the position error is greater than a position adjustment threshold, a motor calibration step is performed. The motor calibration step is implemented as follows: a motor current direction Dr and a motor speed given value Vn are calculated based on the position information; a motor current given value Ipn is calculated according to the motor speed given value Vn; an output current In is calculated according to the motor current given value Ipn; and a voice coil motor is driven according to the motor current direction Dr and the output current In. Therefore, high-speed high-precision control of the voice coil motor can be realized. 本发明公开了种音圈电机位置运动控制装置。通过检测音圈电机的位置获得电机位置信息、电机速度信