On Sun, Apr 10, 2011 at 7:33 PM, RussellMc <apptechnz@gmail.com> wrote:

> Another issue is using on/off switching  for temperature control.
> This would produce marked thermal cycling.
> Better would (probably) be using  a DC voltage which is varied in
> order to try to cause it to just balance cooling against thermal load.
> Some mix of PID control is probably  appropriate. Proportional alone
> may well suffice.
>

Thanks. I'll probably need to make some sort of a MOSFET current source
capable of driving large loads, and keep it within the Ohmic region.

Is that the way to go about it?
--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.