I'm working on a light controller board for a laminar fountain project. I need some help getting started figuring out how to drive a high powered LED (1 Amp+) utilizing a PWM signal from a PIC18F26K22.
Most of the circuits I have found either don't allow for PWM dimming or don't support the current output I need. If anyone has some suggestions to point me towards certain ICs or schematics I would greatly appreciate it.
I'm using this to add RGB lighting effects to a Laminar Fountain I built a few years ago and recently resumed working on. I'll be feeding the light output into fiber-optic cable that carries the light to base of the water nozzle. The high powered LEDs are required to light the entirety of the stream.
You can find my fountain here: http://laminar.forumotion.com/t162-ike-s-prototype-project-my-first-laminar-nozzle
That forum is a great resource if you are interested in building a laminar forum.