This is a theoretical question so I am going to try to put this in general terms.
Say one has a constant current source of 50mA connected to two LED string connected in parallel. To ensure that one string does not hog all the current we put an 'identical' resistor on each string.
What determines the smallest resistance that can be used?
Again I do not have an application for this. It is just a question that has been rolling around upstairs.
Say one has a constant current source of 50mA connected to two LED string connected in parallel. To ensure that one string does not hog all the current we put an 'identical' resistor on each string.
What determines the smallest resistance that can be used?
Again I do not have an application for this. It is just a question that has been rolling around upstairs.