555 Based DC Motor Speed Controller

  • Rajkumar Sharma
  • 25,826 Views
  • easy
  • Tested

M005

555 DC Motor Speed Controller project will control the speed of a DC motor connected to it.  This project is built using the popular 555 timer IC.

Specifications

  • Power supply input 5-12V DC
  • Motor Load Up to 1 to 2Amps
  • Onboard preset to vary Duty Cycle from 10% to 95% @ 120 Hz
  • Ideal for mini drill and robotics application
  • Transistor based output drive with heat-sink
  • Diode protection for motor surge
  • Power-On LED indicator
  • Screw terminal connector for easy power supply input and output-Motor connection
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 47 mm x 56 mm

Schematic

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Parts List

BOM

PCB

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LOPES ANGELO

THANK yoUU

stathis81

Is it ok to use TIP120?

Martin Johansen

You can check out the data sheet for TIP120/122 here: http://www.learn-c.com/tip120.pdf
The TIP120 should be fine, at least for small motors.

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