Re: FET vs IGBT thoughts

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <teslalist-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

At 01:18 PM 4/9/2003 -0600, you wrote:
>Original poster: "Justin Hays by way of Terry Fritz <teslalist-at-qwest-dot-net>" 
><pyrotrons2000-at-yahoo-dot-com>
>
>Hi All,
>
>Yes, Thanks Terry. I didn't realize that IGBT's were that nonlinear!
>I knew they were, but wow. That's a huge advantage (1/20th of the
>dissipation I think you mentioned) over a MOSFET on the high end of
>the current range.


It's not that they are really all that nonlinear.. the FET looks like a 
resistor when it's turned on. For the IGBT (which is kind of a FET and 
bipolar transistor in the same device) you're really looking at Vce for the 
bipolar transistor, which can be very, very small, but is really not all 
that dependent on Ic