Hmm, been looking at IGBTs. Aren't they optimised for switching=20
though, rather than linear control?

If that's not an issue, and if they've got a reasonably linear operating=20
point we can use, they might be worth a try.

@ Olin: I think you're right about the parts needing to withstand 2kV,=20
which is why we've been stacking FETs to keep them in their safe=20
operating area. Frequency response is not critical: if the output=20
reaches target within 1 second, that's fine for now.

Thanks,
Matt


On 14/10/2010 10:12, cdb wrote:
>
> :: Aiming at making a +/-1kV output stage with reasonably low output
> :: impedance (around a few tens of k) using c.o.t.s. semiconductors
> :: andminimal quiescent current
>
> Would iGBT's be a better bet and easier to obtain than mosfets?
>
> Colin
> --
> cdb, colin@btech-online.co.uk on 14/10/2010
>
> Web presence: www.btech-online.co.uk
>
> Hosted by:  www.1and1.co.uk/?k_id=3D7988359

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.