I hope I can find some help here. My electronics knowledge is basic and a little rusty, but soldering is no problem, at least that helps ;-)
I want to build something but I have no experience with high power LEDs so I have no idea how I should do it the right way.
So, let me explain.
I want to make a lightbox with 4 different colors of LEDs: blue, green, yellow and white. I will only use one color at a time and want to be able to switch instantly from one color to the next. I have 4 LEDs from each color, which are:
- Osram Oslon SSL darkblue (700mA, 3V, 1W)
- Osram Oslon SSL green (350mA, 3V, 4W)
- Osram Oslon SSL yellow (350mA, 2V, 3W)
- Nichia NVSW219B-V1 white (700mA, 3V, 5W)
I have a heat-sink and a power adapter (where I can choose 3, 5, 6, 9, 12V). I thought I could use this with some resistors to power the LEDs, but I read on internet it might not be that easy, that's where I got a bit lost. The only thing in found out that it would be better/easier to use a constant current source.
So, I found one, but then I read I cannot switch instantly from one color to the next because of the capacitor in a constant current source.
Now I'm really lost and could use some help with this. I don't really have the time to read into all the electronics theory especially because this is a one time project.
I want to build something but I have no experience with high power LEDs so I have no idea how I should do it the right way.
So, let me explain.
I want to make a lightbox with 4 different colors of LEDs: blue, green, yellow and white. I will only use one color at a time and want to be able to switch instantly from one color to the next. I have 4 LEDs from each color, which are:
- Osram Oslon SSL darkblue (700mA, 3V, 1W)
- Osram Oslon SSL green (350mA, 3V, 4W)
- Osram Oslon SSL yellow (350mA, 2V, 3W)
- Nichia NVSW219B-V1 white (700mA, 3V, 5W)
I have a heat-sink and a power adapter (where I can choose 3, 5, 6, 9, 12V). I thought I could use this with some resistors to power the LEDs, but I read on internet it might not be that easy, that's where I got a bit lost. The only thing in found out that it would be better/easier to use a constant current source.
So, I found one, but then I read I cannot switch instantly from one color to the next because of the capacitor in a constant current source.
Now I'm really lost and could use some help with this. I don't really have the time to read into all the electronics theory especially because this is a one time project.