Hi I am run into a kind of wall! How do you make a current dimmer?
I want to dim an opto coupler via a single turn pot.
Coupler Spec is 1.2V-1.4V @ 0.1uA-50uA.
I have made a precision power supply and have tried to ad a current limiter, I have also tried to use a current divider but with no great result.
At the moment do the power supply deliver 5V 1A but it can be changed.
Thanks for your great input!
I want to dim an opto coupler via a single turn pot.
Coupler Spec is 1.2V-1.4V @ 0.1uA-50uA.
I have made a precision power supply and have tried to ad a current limiter, I have also tried to use a current divider but with no great result.
At the moment do the power supply deliver 5V 1A but it can be changed.
Thanks for your great input!
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