Yes.  That's why he said bipolar driver - reversing the current reverses the
heat flow.

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Alan B. Pearce
Sent: Wednesday, October 03, 2001 3:21 AM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: crystal oven cct?


>Tjaart and I were talking about temperature controllers one day, and he
>mentioned he made a crystal oven with a peltier device and bipolar
>driver(driven by a PIC of course) that maintains 25 deg C. That way the
>crystal aging is reduced, power consumption is low, and there's less
>"warmup" time.

That's cute. Does it work in reverse to cool the crystal when the exterior
temperature is above 25?

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu