On Wed, May 25, 2011 at 4:55 PM, Forrest W Christian <forrestc@imach.com>wr=
ote:

> When fully on, a FET has a resistance - RdsON.
>

So the gate controls the resistance?


> When fully on, a Bipolar has a voltage drop - Vce(sat)
>

So what does the base control exactly? If the current through the base
controls the current through the collector, and I =3D V/R, is it also
controlling the resistance? Or is it controlling the voltage drop?


> Maybe better put - a FET is like a resistor, a Bipolar is like a diode.
>
--=20
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