基于L297的两相步进电机驱动器

作者：潘海燕，姚朝霞 日期：2007-05-08/span> 浏览：4024 查看PDF文档

                                               基于L297的两相步进电机驱动器
                                                        潘海燕，姚朝霞
                           (台州职业技术学院 电子电气工程系，浙江 台州 318000）

摘 要：L297是一种适用于两相步进电机控制的专用芯片。利用L297芯片设计了一种两相步进电机驱动器，给出了该驱动器的驱动电路，并分析了其驱动特性。该驱动器可实现全步、半步控制驱动，具有大功率、斩波驱动、恒力矩、高可靠性等优点，可用于较大功率的机电设备中。
关键词：步进电机；驱动电路；L297

                                       Two phase stepping motor driver based on L297
                                                 PAN Haiyan, YAO Zhaoxia
（Department of Electronic & Electrical Engineering, Taizhou Vocational & Technical College, Taizhou 318000, China）

Abstract: L297 is a type of dedicated chip applied in control of two phase stepping motor. A new design of two phase stepping motor driver based on L297 was introduced. The drive characteristic was analyzed and the driver circuit was given which can implement the fullstep and the halfstep control. The scheme has a novel thinking in the advantage of switch control, constant torque, high power and high reliability.
Key words: stepping motor; driver circuit; L297

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