555 3-phase dc stepper motor controller

811

09:33:58

3 555 timers used to control a DC brushless 3 phase motor like a HDD motor. The LED's represent the 3 coils. When the LED is off that 555 is sinking or grounding that coil because the common wire is always positive. The potentiometer hooked up to pin 5 of all the timers is a way to fine tune how fast the motor turns or in this case the LED's flash.

published 8 years ago

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.