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Old Feb 22, 2012, 05:52 AM
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Romania, Dolj, Craiova
Joined Sep 2007
14,645 Posts
Not exactly the most optimal approach.
You focused on tin case as the main heat source, while the real heat source is the final transistor (U17 in first picture)
From the pictures you posted I have no clue how is the heat transferred from the final transistor to the tin case, and this is very important.
I would try to have a direct contact between the transistor and any heatsing you add, cooling the case is not the main goal.
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Old Feb 22, 2012, 06:08 AM
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Birmingham, Alabama
Joined Jun 2002
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what he said he's really smart
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Old Feb 22, 2012, 10:32 AM
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Joined Apr 2011
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Quote:
Originally Posted by RENATOA View Post
Not exactly the most optimal approach.
You focused on tin case as the main heat source, while the real heat source is the final transistor (U17 in first picture)
From the pictures you posted I have no clue how is the heat transferred from the final transistor to the tin case, and this is very important.
I would try to have a direct contact between the transistor and any heatsing you add, cooling the case is not the main goal.
I can post later other image how i can make thermo transfer to heatsink. Now I change input wire.
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Old Feb 23, 2012, 03:48 AM
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Remove old wire and solder new teflon wire.
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Old Feb 27, 2012, 02:54 AM
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Protect board by thermo tape
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Old Feb 27, 2012, 02:56 AM
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Cut and glue thermal transfer mat
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Old Feb 27, 2012, 02:58 AM
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Solder board back to case...
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