Ok, I have some experience with electronic circuits and for the life of me cant figure out how to get the effect I want. I want to make a pulsating LED. I want it to blink but at the end slowly fade, than come back on fully and fade again.
I have a circuit that blinks the LED at the speed I want, but cant figure out how to make it fade. Ive tried google and cant find anything.
The effect can be seen on a PC motherboard here:
http://www.youtube.com/watch?v=x97tVW8t1vs
The LED is near the bottom left corner of the heatsink.
My current circuit and graph looks like this, you can see what I want to do with the voltage with the little green line that I made in paint. Its supposed to be exponential decay if you cant tell
Ive tried playing with capacitors but They always just make it blink like normal. Im now pretty sure because the current isnt big enough to charge the cap and power the LED at the same time.
Any way I can get around this?
Thanks!
I have a circuit that blinks the LED at the speed I want, but cant figure out how to make it fade. Ive tried google and cant find anything.
The effect can be seen on a PC motherboard here:
http://www.youtube.com/watch?v=x97tVW8t1vs
The LED is near the bottom left corner of the heatsink.
My current circuit and graph looks like this, you can see what I want to do with the voltage with the little green line that I made in paint. Its supposed to be exponential decay if you cant tell
Ive tried playing with capacitors but They always just make it blink like normal. Im now pretty sure because the current isnt big enough to charge the cap and power the LED at the same time.
Any way I can get around this?
Thanks!