This means you can’t control the spindle speed with LinuxCNC or Mach3. For his Hackaday Prize entry, [SUF] is building a DC motor controller for a Chinese spindle motor that doesn’t use any ...

This time he’s using a motor controller that has four half H-bridges built into it. ... 10 thoughts on “ Intro To DC Motor Control Using The SN754410 ” xeracy says: July 21, 2011 at 1:20 pm ...

You can also use a single thyristor, a full-wave unsmoothed supply, and a pot to control the speed. The back-EMF from the motor switches the thyristor off when the voltage drops, the pot setting ...

With speed control pot RV2 set to minimum (diagram left), connecting a series combination of a suitable resistor and an opto-coupler output between the top of the Zener and the pot’s wiper, then ...

This paper presents a DC motor speed controlling technique under varying load condition. The linear system model of separately excited DC motor with Torque-variation is designed using PID controller.