3 Simple Ways to
Share What You Make

With Instructables you can share what you make with the world — and tap into an ever-growing community of creative experts.

PhotosPhotos

Share one or more photos of a project, recipe, or whatever you've made, quickly and easily.

Step by StepStep-By-Step

Share your step-by-step photos with text instructions of what you made so others can do it too!

VideoVideo

Share your how-to video. You'll need your embed code from a video site such as YouTube.

Versatile RGB LED PWM Driver

Step 17Connecting LED modules to the driver

Connecting LED modules to the driver
«
  • conndiag.jpg
  • 5mmleds.jpg
DC in should be in the range 9 to 24 volts. It should also be able to supply the current requirements of all three output channels. This will depend on the type of LEDs used so we can't specify any particular power source.

Maximum output per channel is 5 amps for a total of 15 amps. Connecting cables should also be rated for the current they will be carrying. Although the driver can handle up to 15 amps, it is perfectly happy to drive a few 5mm LEDs at 30mA, as we say it is a versatile driver.

LED arrays, modules etc should have their negative or cathode terminals connected to the MOSFET outputs and the positive or anode connection to the common terminal as shown below.

Depending on the type of LED used you may need to include a current limiting resistors. Some modules have these built in, refer to the manufacturers information for the specific LEDs you plan to use.

A very good 'free' web based tool that will design arrays of LEDs for you, check out this site. http://led.linear1.org/led.wiz

The board can drive a huge range of LED types, even single 5mm LED as the picture here shows.

If you want more information on other RGB LED projects don't forget to check out the PICPROJECTS web site http://picprojects.org.uk/projects/picprojects.htm
« Previous StepDownload PDFView All StepsNext Step »
1 comment
Jan 26, 2010. 9:46 AMjaapiyo says:
Nice Instructable but why is switch 2 not in use?
Thanx, Jaap

Pro

Get More Out of Instructables

Already have an Account?

close

All Steps Viewing
View all steps of an Instructable on the same page when you're a Pro Member.

Upgrade to Pro today!
3
Followers
Author:peteg