Servo Magazine ( August 2008 )

Build a PWM Circuit to run a VEX Motor

By John Toebes    View In Digital Edition  

As part of this year’s Science Olympiad competition, the students were tasked with building an electric car that would go a certain distance and stop. While the Vex Robotics kit from Innovation First is ideal for building such a vehicle, the competition restriction on batteries precluded the use of the 7.2V NiCad that the Vex controller uses. Fortunately, this gave an opportunity to experiment with other ways to drive the Vex motor and control the car...


Read This Article!
If you’re a subscriber and your subscription includes this issue of SERVO, you can read this article in our digital edition by clicking the blue "View In Digital Edition" button above.. Use the email address associated with your subscriber services account to login.

If you're a member of our Preferred Subscriber Network, not only will the magic blue button let you read this article, but EVERY article in EVERY issue is yours to enjoy! Over a decades worth of content is stored in our digital archive!

If you’re not a subscriber, you can still view a few sample pages of our digital edition or subscribe here for full digital access and/or print delivery. Also, as you browse around our site, you will find selected articles have been posted in their entirety for you to enjoy.

Article Comments