Knowledgebase - 4QD - Electric Motor Control


Welcome to our knowledge base, this is where we have useful wiring diagrams and lots of helpful information to get your project running, as well as all the articles from our old website.

Please use the menu on the left to browse the categories and articles, or use the search bar above.

In the Technical Background Information section we have a guided tour that covers a lot of the issues and jargon involved with controllers.

We also have a sister site at If you are looking for a motor control circuit or ideas on how to build your own interface it has hundreds of interesting articles and useful circuits for all sorts of applications, not just for motor control.