Hi,
I think your second answer was what I'm looking for, but just to clarify, he's a very simple diagram. Is there a different between the following ?
+V -> LOAD -> N Mosfet -> 0V
and...
+V -> N Mosfet -> LOAD -> 0V
From your answer, I assume they are similar, however, using Multisim and Crocodile clips, I get a larger voltage drop across the mosfet using the second method, whereas I'm trying to minimize drop. I though they should be identical as you have describe. I will try it out on breadboard soon. Oh btw, which are 'normal' mosfets, depletion or non-depletion?
Thanks for you information post, it actually gave me a really good idea and saved me several op-amps in a project I'm working on.
Another few quick questions though, does the Rgs of a mosfet determine the voltage drop? And since I want a very low voltage drop, i should be looking for a very low R mosfet correct (large load)?
As well, is it okay for the voltage at the source to be large than at the drain? Just by around 5V? This is for a fairly high power mosfet, if that makes a difference.
Thanks
p.s. You visit SPF?