电机控制器中电流采样电路的分析与设计

随着社会发展，作为工业化动力源的电机领域也朝着高效节能的方向不断进步。特别是近些年以矢量控制技术为代表的现代电机控制技术，为各领域的电机应用注入新的活力。电机控制技术的变革也引发电机控制器设计理念的改变，现代电机控制器中电流采样电路的设计与研究变得越发重要。因此本文结合现代电机控制技术特点，从电流采样方案选择、采样电路频域特性、滤波网络设计、PCB设计等几个方面，对电机控制器中电流采样电路进行分析，并探究相关电路的设计方法。

Analysis and Design of Current Sampling Circuit in Motor Controller

With the development of society, as the power source of industrialization, the field of motor has been progressing towards the direction of high efficiency and energy saving. Especially in recent years, the modern motor control technology represented by vector control technology has injected new vitality into the motor application in various fields. The change of motor control technology also leads to the change of motor controller design concept. The design and research of current sampling circuit in modern motor controller become more and more important. Therefore, combining with the characteristics of modern motor control technology, this paper analyzes the current sampling circuit in the motor controller from several aspects, such as the selection of current sampling scheme, sampling circuit frequency domain characteristics, filter network design, PCB design and so on, and explores the design methods of relevant circuits.