# How does the stepper motor driver realize the number and frequency of pulses?

by：V&T Technologies     2020-01-10
How does the stepper motor driver control the number and frequency of pulses? The two-phase stepper motor driver is an actuator that converts electrical pulses into angular displacement. When the two-phase stepping motor driver receives a pulse signal, it drives the stepping motor to rotate at a fixed angle (Called'Step angle') Its rotation runs step by step at a fixed angle. The angular displacement can be controlled by controlling the number of pulses, thus achieving the purpose of accurate positioning; At the same time, the speed and acceleration of the motor can be controlled by controlling the pulse frequency, thus achieving the purpose of speed regulation. A friend asked me a question, assuming that we can use the pulse signal of a single chip microcomputer control panel and then transmit it to the stepper motor driver, can we drive two stepper motors at the same time, then I still have to solve this problem. At the same time, I also want to make these two non-stepping motors rotate at the same angle. Is it OK? In fact, there are two solutions to solve this problem. First of all, we should solve the problem of stepping motor driver, stepping motor, and the choice of power supply. This is a more complicated matter, but we can save money for stepping motor driver, the budget can also not be reduced. There is also a better consideration in terms of safety, that is, we only refer to whether this single chip microcomputer can drive two stepping motor drivers at the same time, and whether the driving capability is enough. Suppose we don't look at this manual, usually, if a stepper motor driver needs 30MA current, it is absolutely safe. If we look at the first one, you will find that it can be but it always feels Unreliable. If we drive two stepping motors at the same time, then the machinery driven by the stepping motor is different, the parameters set will also be different, so that there will be mutual interference. If you want to use it, I suggest you use the second method here, because the result is the same, it is to increase the torque and accuracy, so this is better, safer and more reliable. Excellent recommendation: stepping motor TAG stepping motor driver
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