I don't know about that, but you have liquid cooled heatsinks for high power
processors capable of taking care of a few hundreds of watts. It's flat on top
so it could take a flat package and still allow relatively convenient
connections.
I remmember a design l did at a company
Producing high ppower jammers.
That was an MRF151 putting out 350 watts continuous opetsting st 38 VDC.
Alex 4Z5KS
נשלח מסמארטפון ה-Samsung Galaxsy שלי.
<div>-------- הודעה מקורית --------</div><div>מאת: John Lyles <jtml@losalamos.com> </div><div>תאריך:26/08/2016 10:44 (GMT+02:00) </div><div>אל:
amps@contesting.com </div><div>עותק: </div><div>נושא: [Amps] LDMOS HEAT SPREADERS </div><div>
</div>I wonder if a high power transistor could mount on a chill block sold
for puck type very high power devices. For instance,
http://catalog.chtechnology.com/viewitems/extruded-bonded-fin-heat-sinks/liquid-chill-block?&plpver=10&forward=1
Of course, getting the RF into and out off the device with this cooler
in the way is tricky.
John
K5PRO
Date: Mon, 22 Aug 2016 07:44:16 +0100
From: Steve Thompson <g8gsq72@gmail.com>
With water cooling, why not sit the transistor over a pocket and
run the coolant directly against the flange? That's a method I saw
in production test at the Philips (as it was) factory.
NEC had an ill fated TV broadcast tx which cooled the transistors
with compressed air blown directly onto the flange. In terms of
cooling I was told it worked just fine, the problem came when the
nozzles blocked with dust.
Steve
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