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I am playing around with Mosfet specifically irf 540.According to the datasheet ,Vgs is about 10 volt.I added 2 resistors to 2 different circuits to see if there is a difference in the component's saturation. I applied then 3 volt to both gates .Surprinsingly the first circuit saturated and the other didn't.I have got then serveral questions:
- Why did the Mosfet saturate in the first configuration and not in both?
- Why did it saturate with 3 volt and not 10 ?
- Does this circuit really need a resistor following drain or source?
- What additional considerations to take in if i want to drive a load which draw at max 1 A at 24 V?