If one wanted to use one of these to cool an LDMOS VHF KW, where would
one find the design info to calculate which cold plate would provide
sufficient
cooling ?
I envision a stack something like this:
LDMOS PC Board
Copper Heatsink (thickness need be determined)
Cold Plate
Aluminum Heat Sink (is this really necessary ?).
73 es HH, Dick, W1KSZ
On 12/14/2014 4:32 PM, David Cutter wrote:
I'm a little surprised that folks in this group haven't suggested
liquid cooling for this modest application. Semiconductor cold plates
have been around for a long time, are economical to use and in my view
a much better solution than forced air cooling. They are compact,
quiet, require far less cabinet space, keep junctions cooler and more
stable than air could ever and enable higher reliability.
Look at Aavid for instance, whose devices I used on many occasions:
http://www.aavid.com/sites/default/files/products/liquid/pdf/liquid-cold-plate-datasheet-hicontact.pdf
If you play your cards right, you can cool the amplifier and the power
supply on a short 4-pass plate. Put the heat somewhere convenient,
not in your shack.
73
David
G3UNA
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to w1...@earthlink.net
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com
