Mosfet switching problem with low value resistor such as 1 ohm

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SArslan

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Hello forum
I am trying to switch mosfet. I am using 1 ohm resistor. My aim is heating or cooling resistor.
First, ı tried basic common source configuration. I used 1 ohm resistor as a drain resistor. My gate voltage is either 3.3 v or 0 v. With this configuration, mosfet cant enter triode region. So how can ı switch mosfet with 1 ohm resistor.
 


what type of fet are you using?
is it a logic switching fet.
you need more supply voltage to the 1R
i should think. or the fet is faulty
or connected incorrectly.
if 5V supply the IL= 5A so you need >5A fet
 

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