A friend of mine is wanting to build his own light-bar for his truck, and wants it 'daylight' bright.
Now... I have experience with the little 1W white LEDs, but the LEDs we will be using are 10x that..
The concern I have is from lack of experience. I have the theory behind setting up a lower voltage buck constant current supply and running the LEDs in parallel with a very low value resistor on each LED, or stringing them together in series and using a constant current boost converter.
The final power usage will be 10 of those LEDs which operate from 10-11V with a current draw of 900mA.
Considering I will need to supply either 10A.. or 100+V, which one should I pursue?
The title is a generic question that I'm not sure about. Is there a threshold when building a supply where it is considered 'high-power' or when special design considerations will need to be made? Or can I just up-scale a smaller constant current source and be fine?
Now... I have experience with the little 1W white LEDs, but the LEDs we will be using are 10x that..
The concern I have is from lack of experience. I have the theory behind setting up a lower voltage buck constant current supply and running the LEDs in parallel with a very low value resistor on each LED, or stringing them together in series and using a constant current boost converter.
The final power usage will be 10 of those LEDs which operate from 10-11V with a current draw of 900mA.
Considering I will need to supply either 10A.. or 100+V, which one should I pursue?
The title is a generic question that I'm not sure about. Is there a threshold when building a supply where it is considered 'high-power' or when special design considerations will need to be made? Or can I just up-scale a smaller constant current source and be fine?