Microstepping Test Board with LMD 18245 Specialized Circuit for Bipolar Stepper Motor

• Main Author: Alexandru Morar
• Format: Article
• Language: English
• Published: Editura Universităţii "Petru Maior" 2010-12-01
• Series: Scientific Bulletin of the ''Petru Maior" University of Tîrgu Mureș
• Subjects: stepper motor; PWM control; dedicated ICS; microstepping
• Online Access: http://scientificbulletin.upm.ro/papers/2011/01/Microstepping-Test-Board-with-LMD-18245-Specialized-Circuit-for-Bipolar-Stepper-Motor4.pdf

The paper presents a control system for low speed stepper motor control in a microstepping mode, which was designed and performed with a high performant specialized integrated circuit LMD 18245, made by National Semiconductor company. The microstepping control system improves the positioning accuracy and eliminates low speed ripple and resonance effects in a stepper motor electric drive. The same microstepping system is ideal for robotics, printers, plotters, X-Y-Z tables and can facilitate the construction of very sophisticated positioning control systems while significantly reducing component cost, board space, design time and systems cost. The microstepping card is designed for continuous operation.