vicious5id Posted August 24, 2006 Report Share Posted August 24, 2006 How would I go about creating a constant current source to supply a 20 Ohm load? I want the current to be variable from 0 to 120 mA.So I need a circuit which supplies a constant current to a 20 Ohm load, in the range of 0 to 120 mA.^ That is a circuit that I have designed already, however I believe it is a little unstable and the transistor may need a heatsink to suffice the circuit.I was hoping that perhaps there is a way to achieve a circuit that is independent of temperature, so I won't need a heatsink or have to worry about possible thermal runaway. Quote Link to comment Share on other sites More sharing options...
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