![]() I think what should have been mentioned is that this DSP uses feedback (current) from the stepper in such a way that the driver is in sync with the motor and therefore cannot overstep or miss steps. Posted in Microcontrollers Tagged driver, dspic33, stepper motor Post navigation For those that really want to dive in, multi-paged write-up is worth bookmarking. It works, but he would go the other route if doing it again.įor the pedestrian, the video after the break has all the details you need. During development, he decided to use interrupt-based PWM rather than the hardware PWM offered by the dsPIC. ![]() When driven hard it needs its own heat sink, which cut from a larger CPU heat sink. That’s it sticking up next to the large capacitor. But instead of using a series of discrete MOSFETS to switch the signals to the motor, he sourced an L298N motor driver. been learning about and building stepper drivers for years, and recently he decided to build a high-performance driver based on a MicroChip reference design.Īs with the reference design, his board uses a dsPIC33. ![]() But if you’re looking to run then at a high number of revolutions per second things get tricky pretty quickly. Stepper motors are pretty easy to control with a microcontroller. ![]()
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