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Old 23rd March 2007, 07:42 PM   #1
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Default What do you think about my proto type?

Hi,

I am planning to make a 4+1 car amplifier based on LM4780(4*60+120W). I enclosed the component layout of my desing. Two 4780s are BPA and the left ones stereo for fullrange. The copper drawing is not finished yet and I would like to ask someone here. The PCB will be mount on the heatsink from the SMPS mosfets and 4780s' case via bulk copper used as bus for industrial electrical(2"*0.5"*5"). My heatsink is 5"*6.5" and has 17 fins (3cm). Will this heatsink be enough for my amp?

All comments will be very useful on this stage!
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Old 23rd March 2007, 07:51 PM   #2
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Cool and here is the unfinished copper side

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