Copper plate between power transistors and Al heatsink will correct thermal situation.
Mixing conductivity(and greater thermal capacity of copper) and convectivity.
RNM,
What caught my eye in the picture of the amp and heat sink was the intermediate plates which are obviously modules that can be strung together. What is the material used that is coupling the sections together, it looks darker than the aluminum plates. I just wonder how the transfer is between the sections at that point?
What caught my eye in the picture of the amp and heat sink was the intermediate plates which are obviously modules that can be strung together. What is the material used that is coupling the sections together, it looks darker than the aluminum plates. I just wonder how the transfer is between the sections at that point?
That, and your amazing hearing, makes you a true expert when it comes to audio design.
The power density at the interfaces won't create that large a thermal drop.
Where the biggest bang will be is at the semi package to plate interface. I can't see if there is an insulator there, but if there is and it's not alumina, swapping to that would make a big inprovement.
Also, can't tell if the packages are iso. If so, I'd plop non iso over alumina as well. And I'd toss the paste, go with graphene sheet at both interfaces.
Course, RM's probably runin 5 watts per device anyway, so this is all probably moot..
Richard, nice hardware, I love it. Never seen a toroid with 4/0 wire before..😉
John
No, only an employer that doesn't mind you wagging the schwanz outside the regular schedule.
I think we went over that and at the typical audio amplifier heatsink temperature a black finish has only a small effect. It is when you get quite a bit hotter when it begins to really make a difference.
BTY I noticed you didn't contribute when microdiodes came up again & again. I keep telling you by my measurements there is no effect shown from microdiodes in copper wire. 🙂
Waly,
Is Le Bistrot Lyonnais still the same?
There you go again! Assumptions.
what employer? I am retired. I don't have a job. I am unemployed.
It's all magic.
THx-RNMarsh
Focus Mr. Marsh, that reply had nothing to do with you or your realm of reality.
YES !
One of These :
https://www.jameco.com/z/7023B-MTG-...-Tabs-4-4-deg-C-W-Black-Anodized_2039099.html
Outperforms One of These :
https://www.jameco.com/z/530002B025...e-Pins-2-6-deg-C-W-Black-Anodized_696626.html
is anyone using DADiSP besides me? Great software and very fast code.
I used to have in my home a full LSI-11 system (with math coprocessor) and a lot of memory (for the time) and I ran this software on it and it was really great in the way you worked with its windows. Later upgraded changed to PC version. Check it out.
THx-RNMarsh
I used to have in my home a full LSI-11 system (with math coprocessor) and a lot of memory (for the time) and I ran this software on it and it was really great in the way you worked with its windows. Later upgraded changed to PC version. Check it out.
THx-RNMarsh
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DADisp looks nice, I might have to consider it if the need is really there. Until then you're a lone nerd.
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