Quote:
Originally Posted by rsisk
Am I correct in assuming the following:
Source - The +5V/82ohm/LED side of Ether's diagram
Drain - The ground side of the diagram
Gate - The DIO Signal/100Kohm side of the diagram
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No. For an N-channel MOSFET, the source is connected to ground, and the drain is connected to the load, which is connected to the power.
The gate is connected to the signal, as you said.
So in the sketch I posted earlier, the source is on the bottom of the FET, and the drain is at the top. See annotated sketch attached.