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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