aquarius Posted October 26, 2009 Report Share Posted October 26, 2009 In my project I need to control intensity of 8 LED Piranha by using following components(see an attached file):- LED RGB Controller ( simply changes combination of R,G,B colors)- OPTO22 ODC15 Solid state relays module- 8 independent PWM controllers (work from software and change output voltage from 0 to 12VDC)- 8 LED RGB Piranha 12VDC, 25mA, with resistorsMy point is to make dimmable 8 LED Piranha while the LED Controller changes colors. Each LED performs according to the PWM Controller output voltage.I've already made and tested only one LED. Works perfect.Don't know where to connect other 7 negative outputs from PWM's.Do I have to have 7 more OPTO22 or there is another solution?Need help.Thank you. LED_Controller_Circuit_FUN_1.pdf Quote Link to comment Share on other sites More sharing options...
Riccardo Posted December 1, 2009 Report Share Posted December 1, 2009 Yes, you are going to need more ODC15 units if you want independent control over the LEDs Quote Link to comment Share on other sites More sharing options...
Hero999 Posted December 1, 2009 Report Share Posted December 1, 2009 It looks like you can just leave the negative outputs unconnected. Quote Link to comment Share on other sites More sharing options...
login
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.