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BrianG · 05.31.2007, 11:30 PM

You pretty much hit the nail on the head. Like their name implies, they control the flow of current through the source and drain terminals (the high current areas) by a field created by applying voltage to the gate. Think of them like a large fire hose. The valve is the gate. The source and drain are in the input and output. You can control a LOT of water flow with relatively little force on the valve. Same thing with a FET.

	(#380)
BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	05.31.2007, 11:30 PM You pretty much hit the nail on the head. Like their name implies, they control the flow of current through the source and drain terminals (the high current areas) by a field created by applying voltage to the gate. Think of them like a large fire hose. The valve is the gate. The source and drain are in the input and output. You can control a LOT of water flow with relatively little force on the valve. Same thing with a FET.