TB6560 stepper motor drive circuit design

Stepper motor is a kind of electrical pulses into angular displacement of the actuator. Driver receives a pulse signal, after driving a stepper motor according to set the direction of a fixed Angle. First of all, by acmotortrading.blogspot.com controlling the pulse number to control the amount of angular displacement, so as to achieve the purpose of accurate positioning; Secondly, by controlling the pulse rate to control the motor rotation speed and acceleration, so as to achieve the goal of quick generator set spare parts rinse. At present, the stepper motor with low inertia, high positioning accuracy, no accumulation error, simple control and so on, has been widely applied in electromechanical ac motor integration products, commonly used for positioning control and constant speed control. Stepper motor driver circuit commonly used chip L297 and L298 composite applications, 3977, 8435 and so on, these chips are generally single lamination drive current is controlled in 2 A, unable to drive more powerful motor, limits its application scope. This article is based on Toshiba company launched in 2008, stepper motor driver chip TB6560 put forward a kind of stepping motor drive circuit design.