> -----Original Message-----
> From: M. Adam Davis [SMTP:adampic@UBASICS.COM]
> Sent: Monday, July 22, 2002 3:42 PM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: [OT]: Other Microcontrollers
>
> I can see that.  The components wouldn't generate much heat (if designed
> carefully they would emit very little heat).
>
>
Think about what would control the TEC's.  They need amps of current to pump
heat if working near their maximum delta T.  A linear system will give off
considerable heat, a switching system is likely to give noise problems.

It's possible you could get away without any form of temperature control,
just apply enough voltage accross the TEC's for the worst case, but you
would have to be very carefull that the cold sides didn't get cold enough to
damage the circuit when the unit is operating at temperatures condierably
lower than it's maximum.

TEC's are interesting and occaisionaly usefull engineering solutions, but
their disadvantages can often outweigh any benefits.

Regards

Mike

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