基于TC1002的两相混合式步进电机细分驱动器设计

摘要

Two-phase hybrid stepping motor driver with high-performance,multi-segment,miniaturization and simple structure is designed with two-phase stepping motor control chip TC1002.The constant current chopper control mode and adjustable mixed current decay mode are used in the system to optimize the output current further.The stepping motor control system is subdivided up to 256,which is used to offere several functions,including direction control,enable/disable option,half current control,etc..It also has the ability of over current and over temperature protections.This controller is of low cost,easy implementation and stable performance,so it is suitable for stepping motor control system.%以一款两相步进电机控制芯片TC1002,实现了一种结构简单的高性能、多细分、微型化两相混合式步进电动机驱动器该系统采用恒流斩波控制方式,可调的电流衰减模式可以进一步改善步进电机绕组的电流波形.驱动器最高细分数为256,提供正反向控制、使能控制、自动半流锁定功能以及过流、过热等电动机驱动器的保护功能.这种控制器成本低、容易实现、性能稳定,是步进电机控制器的一种较好选择.