基于LV8729V的二相步进电机驱动电路设计  

Two-phase Stepper Motor Driver Design Based on LV8729V

作　　者：吴永德 

机构地区：[1]广东省电子职业技术学校电子技术应用系,广州510515

出　　处：《机电一体化》2016年第5期68-72,共5页Mechatronics

摘　　要：提出基于步进电机驱动芯片LV8729V的电路设计方案,包括步进电机的主电路、输出电流设置电路、控制信号隔离电路以及电源电路的设计,并给出具体的驱动电路图。该方案具有高细分、过热关断、过流保护和自动半流锁定等功能,电路简洁,性能稳定,性价比高,适用于相电流小于1.6A的二相步进电机使用。Circuit design programs are proposed based on the stepper motor driver chip LV8729V, including the designs of stepper motor main circuit, output current setting circuit, control signal isolation circuit and power supply circuit. And all the detailed circuit diagrams of the driver are given. The driver has the functions of highly precise di- vision, thermal shutdown, over-current protection and automatic half current. The driver has the advantages of simple structure and stationary performance. It is applicable to the two-phase stepper motor whose phase eurrent is less than 1.6A.

关 键 词：步进电机 细分驱动 自动半流 LV8729V LM317 

分 类 号：TM383.6[电气工程—电机]