[_borders/old-ads-DON'T UPLOAD/old-ads/Media/ad-inser t.htm]
Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 30,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.
We make every effort to link to material posted by the designer. 
Please let us if you would like us to link to or post your design.

HOME Schematics Discover Forum Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches

DiscoverCircuits.com -- Hobby Corner
Last Updated on: Wednesday, July 16, 2014 06:35 AM

Hobby Circuits' Category List

The contents & graphics of Discovercircuits.com are copyright protected.
LINKING to Dave's circuits is permitted but DO NOT COPY any files to your WEB SITE server

More  Control Circuits     
Motor Control Circuits     PWM Circuits

PWM Circuit for Motor Speed Control
designed by David Johnson, P.E.

Sometimes you want to slow down a brush type DC motor. The most efficient way to do this is with a pulse width modulation (PWM) technique. The hobby circuit below can operate from about 3 volts to 15 volts. The frequency is fixed at about 2KHz but the pulse width can be varied from nearly 100% to 0%.
By using a multi-turn pot, you can accurately select the desired motor speed. With the components indicated, the peak motor current can be about 2 amps.  For higher currents, you will have to use an n-channel FET with a lower drain to source resistance.  (NOTE:  This schematic was corrected 09/09/09)

Click on Drawing Below to view PDF version of Schematic

Circuit Circuit PWM Circuit for Motor Speed Control


More  Control Circuits      Motor Control Circuits   
 PWM Circuits

Hobby Circuits' Category List
eMail David A. Johnson, P.E. about this circuit

 


 Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.

HOME Schematic Lists Hobby Corner Dave's Circuits Electronic Resources Contact Info

 

 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |    Privacy Policy

Copyright  2002 - 2014 David A. Johnson & Associates.  All Rights reserved.