I have an existing 0-5v circuit that provides dimming control of 5v lights. I would like to replace the incandesent lights with LEDs.
The LEDs that I have dim from 2.5v to 3.3v
I plan on supplying constant 5v power in addition to the 0-5 control voltage.
The panels I am working on have anywhere from 5 to 70 lights on them wired in parallel.
I would like to restrict the output voltage to 2.5v - 3v.
The controlling voltage is 0-5 volts.
With up to 70 LED's I doubt that a 555 would be able to handle the load so it would need to account for this.
Do I still need to wire a resistor in series with each LED?
I am fine with assembling circuits but do not "speak the language" well enough to feel comfortable adapting a circuit to work so I appreciate any help that I can get.
Thanks.
Mike
The LEDs that I have dim from 2.5v to 3.3v
I plan on supplying constant 5v power in addition to the 0-5 control voltage.
The panels I am working on have anywhere from 5 to 70 lights on them wired in parallel.
I would like to restrict the output voltage to 2.5v - 3v.
The controlling voltage is 0-5 volts.
With up to 70 LED's I doubt that a 555 would be able to handle the load so it would need to account for this.
Do I still need to wire a resistor in series with each LED?
I am fine with assembling circuits but do not "speak the language" well enough to feel comfortable adapting a circuit to work so I appreciate any help that I can get.
Thanks.
Mike