电机控制之电流采样方法

Current SamplingMethods for Motor Control

电机控制中电流采样方法各有优缺点,适用场合也不同。针对电流采样方法的方案设计,此处从电流采样方法选择、提高电流采样的抗干扰等方面,对电流采样进行论述,详细分析设计了电阻+∑Δ调制器在电流采样中的实际应用,实验样机证明了电路设计和时序设计方法的正确性。最后,总结了各类电流采样方法仍然有待解决的问题。

In motor control,current sampling methods have their own advantages and disadvantages,and their applica-bility varies.Scheme design for current sampling methods,current sampling from the aspects of comparing current sampling methods and improving the anti-interference of current sampling are discussed.The practical application of resistor+Z△modulators in current sampling is analyzed in detail,and the experimental prototype proves the correct-ness of circuit design and timing design method.Finally,the problems to be solved in various current sampling meth-ods aresummarized.