[SOLVED] unstable load resistor

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hi everyone
first of all i want to say thanks for the replies
my problem is: i have unstable load resistor (range from 1 to 7 Omh) in next circuit:

i need, that drain current will be constant 4A. what kind of feedback i will must put to the gate from Rload?
thanx
 

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Hi
Although i think i've saw another thread just like this from you but your answer is using a simple hiccup current limiter .
Best Wishes
Goldsmith
 

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