Hello,
I have 26 3W leds of max 750A, that I'd like to make dimmable using my raspberry pi's 3.3V pwm. I want to use multiple dimmable channels and keep it as tidy as possible. So rather not multiple drivers. I'm having some difficulty finding suitable parts. Mainly because the specs don't match.
I didn't want to built the circuit completely by myself, because I want maximum compactness and minimum energy loss. I trust chips and drivers more for that than I trust myself.
What i'd like to know is:
1) are there led drivers of 750mA constant current that can provide 80V or more?
2) are there maybe chips with multiple channels that can output 80V 750mA?
3) are there any transistors that can switch a 750mA current at 80V?
I have 26 3W leds of max 750A, that I'd like to make dimmable using my raspberry pi's 3.3V pwm. I want to use multiple dimmable channels and keep it as tidy as possible. So rather not multiple drivers. I'm having some difficulty finding suitable parts. Mainly because the specs don't match.
I didn't want to built the circuit completely by myself, because I want maximum compactness and minimum energy loss. I trust chips and drivers more for that than I trust myself.
What i'd like to know is:
1) are there led drivers of 750mA constant current that can provide 80V or more?
2) are there maybe chips with multiple channels that can output 80V 750mA?
3) are there any transistors that can switch a 750mA current at 80V?