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。
A closed loop control system is formed by current and Voltage feedback system by means of HALL sensor and potentiometer.
借助输出电压采样和霍尔元件，设计了电流、电压反馈电路，形成了闭环控制系统。
A closed loop control system is formed by current and Voltage feedback system by means of HALL sensor and potentiometer.
借助输出电压采样和霍尔元件，设计了电流、电压反馈电路，形成了闭环控制系统。
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