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Re: Speed control
Thanks Dave,
I went to the site and saw all the nice regress pictures (p-n junctions),
read about half of the text and remembered why I am an ME. Actually, I
didn't see what the significance of the difference was between a MOSFET
and an IGBT was in actual practice. Does this device handle more
current?, voltage?, use less power to turn on?, or what? I purchased a
couple of PWM controllers recently to use in variable speed diver
propulsion units. They were surplus and therefore not expensive. If I
start making these for sale I will be looking for low cost units which I
can get on a regular basis. I would even consider making the units if the
design was robust and the parts could be obtained cheaply. Could these
IGBT's be used in a 12vdc, 30 amp PWM cost effectively? A simple answer
will suffice for now, details could follow later if appropriate.
Thanks for your inputs,
Dick
Dave Everett wrote:
> At 18:43 14-05-99 -0700, Dick Morrisson wrote:
> >And an "IGBT" is a what?
> >Integrated Great Big Transister
> >Irritated Goose Bite Tester
> >Illogical Giant Banana Transformer
> >Ok, I give up, please enlighten me (an ME) oh great one (assumed EE)!
> >
> You were close Dick!
> 'Insulated Gate Bipolar Transistor'
>
> If you feeling sado-masochistic, you can read all about them at:
> http://www.elec.gla.ac.uk/groups/dev_mod/papers/igbt/igbt.html
>
> Also cures insomnia, dropsy and Ebola virus.
>
> Dave Everett