| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor driver and controller, which can prevent the malfunction of a sensor without increasing the number of connection between an actuator, which possesses a reversible motor of simple structure and a sensor for detecting the rotational speed, the rotational angle, the quantity of rotation, etc., and an external circuit. SOLUTION: The ground side of a sensor and one end of a motor can be connected with each other not via a diode by making the power source for sensor or the power source for motor of a motor driver and controller which has the power source for motor, a sensor for detecting the working state of that motor, and the power source for that sensor a floating the power source, and connecting one end of the power source for the motor to the ground side of the power source for the sensor, so that this motor driver and controller can prevent the drop of working voltage of the sensor and the occurrence of noise without increasing the number of connections, and the reliability on the working of the sensor is improved. |
