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Old 17th April 2003, 08:51 PM   #1
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Default Aleph 3

Hello to all,

I have finished the assembly of an Alehp 3 taking advantage of some heat sink that taenia.

Which the maximum temperature that can reach the heat sink for this assembly is?

A greeting to all.


Angel Puerto.

NOTE: Excuse for my English so bad.
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Old 18th April 2003, 07:56 PM   #2
Mad_K is offline Mad_K  Norway
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I'm not shure if this info is what you are looking for but the rule of thumb for heatsink temperature is not to exceed 50'C. -> You should be able to touch the heatsinks without hurting your hands. The aleph 3 puts out some 200W of heat. This meas your heatsinks should have a total rating of about 0,125 'C/W. Hope this helps.
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Old 19th April 2003, 05:33 AM   #3
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Hello Mads,

Thank you for your comments. But I believe that it warms but of that due that the power supply is bigger to the standard of the Aleph 3 having to support more power the devices.

Angel
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Old 26th April 2003, 07:58 PM   #4
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Hello Mads,

This is the result 60 with the heat sink that I take advantage.
Vcc + - 33 V. also with a material that I take advantage.

Greetings.

Angel
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Old 27th April 2003, 01:17 PM   #5
Mad_K is offline Mad_K  Norway
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Wow! +/-33V is more like Aleph5! You now have 33*2*4=264W to get rid of.... But 60'C is OK. I believe it will last for a really long time. Happy listening
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Old 28th April 2003, 06:39 PM   #6
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The problem with heatsink : I'm used to see a lot of heatsink without there value of C/W.

I dont' care with the fact I take the biggest heatsink as possible.

But can we determin the dissipation power by the weight of an heatsink ( and of all others part of metal)?
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Old 28th April 2003, 06:44 PM   #7
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Talking Calculating Heatsink rating

You can calculate the heatsink rating with its dimensions using the tool in this link

I would also recommend the heatsink article, it makes for good reading.

vsr
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Old 29th April 2003, 08:29 AM   #8
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Thanks
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Old 29th April 2003, 09:13 PM   #9
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Hello

If I don't remember bad with this tension it gives 50W approximately

When I can a picture of the prototype, Ill sent you.

Greetings to all.

Angel
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Old 7th May 2003, 06:37 PM   #10
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Hello to all,

Here the pictures of the prototype are, they lack to add 2 condensers of
150.000 uf.
A thing that was me very well was to put 9 condensers of
2.200 uF Nichicon URZA in parallel with 150.000, in high and sharp means, transparency. Not small condensers of 0,1uF...

Greetings.

Angel.

NOTE: Lament my not well English one.
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