In order to ensure A phase and B phase circuits are symmetric, digital potentiometer X9C503 with exterior pressed key in the feedback amplification circuit is designed.
在反馈放大电路设计时,采用数字电位器X9C503与外部按键配合,达到了A、B两相电路的对称性。
2
A closed loop control system is formed by current and Voltage feedback system by means of HALL sensor and potentiometer.