I want to supply a constant current of 1A to a variable resistive load. I have made my constant current source with LM317 and its working as expected. Now I want to put a FET in line and somehow break the circuit through FET if the supply voltage from constant current source exceeds about 4.7V (some sort of safety feature). I think it can be achieved by a zener and transistor but can’t put up a circuit. Can someone help me?
I don’t want you to draw complete circuit just give me an idea how to achieve this and I hope I will be able to draw the circuit.
Regards
I don’t want you to draw complete circuit just give me an idea how to achieve this and I hope I will be able to draw the circuit.
Regards
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