OK, given this circuit:
Which has this actual relationship between the voltage at the base of the MOSFET and the voltage across the resistor at the drain:
Notice that the saturation happens rather quickly at low gate voltages. What I'd like is to be able to vary the gate voltage from 0 to 5 volts and have the voltage drop across the resistor be more proportional across that range so that the graph would look more like this:
How would I go about figuring out how to make a circuit like that?
Which has this actual relationship between the voltage at the base of the MOSFET and the voltage across the resistor at the drain:
Notice that the saturation happens rather quickly at low gate voltages. What I'd like is to be able to vary the gate voltage from 0 to 5 volts and have the voltage drop across the resistor be more proportional across that range so that the graph would look more like this:
How would I go about figuring out how to make a circuit like that?
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