A stepper motor is a motor that moves in steps. Well, DUH! Isn’t that obvious? But it may not be. Because the notion of moving in steps is not as trivial as we may think. In fact, the ability to…
Author: avayan
Slow, Mixed and Fast Decay Modes. Why Do We Need To Complicate Things?
If you are driving inductive loads, whereas it is a brushed or brushless DC motor, stepper motor, solenoid or a relay, you must have experienced a little bit of a problem in the form of an unwanted current flowing in…
Avayan’s CNC Electronics Overview
My electronics are ready to go. Everything except one board is of my design, and I am proud to report that as of today it is all working. The parallel port board is the only thing I bought. It is…
Yet another DC Motor Controller
I don’t know why, but a few weeks ago I felt like improving my AE-DC1 DC motor controller. At least the results were pleasing. The AE-DualDC3A module is considerably easier to use than its predecessor. It is just a little bit…
Cobotrox I in Action
Like I explained on my previous post, I was finally able to take my old electric wheel chair platform and remote control it by using a very simple decoder that takes RC PWM signals and generates DC Motor PWM signals.…
Wheel Chair Robotics – Adding Remote Control Functionality
A great deal of the robots out there are basically just giagantic remote control contraptions. Some people will argue there is little roboticism about that, but I think remotely operated mechanisms do qualify as robots. After all, imagine a machine…
Understanding PWM
PWM stands for Pulse Width Modulation and it basically means precisely that. You have a pulse, and if you can change the width of the pulse without changing the frequency, then you have modulated its width. Lets first take a…
Connecting the AE-MDL-STPR1 Bipolar Stepper Motor Controller
If you have acquired or built one of my bipolar stepper motor drivers with up to 2.5A current capability and internal microstepping indexer, you could be asking, “How do I get this little guy started?” That is indeed a very…
DC Motor Control Basics
You have a DC Motor you want to control it. But how? And what does DC Motor control means? Pretty much when we are talking about DC motor control, there are 4 aspects we need to get our minds busy with:…
Removing the Brakes
Wheel chairs are meant to carry somebody, usually somebody that can not walk. It should be of no surprise that in the last few decades, architectural constructions have been mandated to take this into account. Wherever you go, there are…