How about 3xLM3886 on one PCB! PA150! - diyAudio
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Old 25th June 2012, 08:47 AM   #1
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Default How about 3xLM3886 on one PCB! PA150!

Ladies and Gentlemen

Basing on alexw88's (shine7.com) experience, I've created my own project of PA150 (3xLM3886). It has been modified a bit, the size has been reduced, and some other tweaks have been made. I'd like to share the project with you (below). PDF file with switchable layers, try it! I'm gonna order the PCB soon, if anyone wants to grab a couple of PA150 PCB, let me know. Of course, tweaks still can be done before the order.

PCB layout:
http://airproject.drl.pl/PA150v18.pdf
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Old 25th June 2012, 10:48 AM   #2
AndrewT is offline AndrewT  Scotland
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One post, no previous history.
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regards Andrew T.
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Old 25th June 2012, 10:58 AM   #3
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I'm more of a practicioner and reader than talker
No bother!

Thanks everyone for the interest. There are 2 orders (4 PCBs) already!
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Old 25th June 2012, 08:54 PM   #4
SoIL4x4 is offline SoIL4x4  United States
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Maybe a little more information would help. Some information about the power supply. Do you have any picture? Have you done any testing?
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Old 26th June 2012, 09:00 AM   #5
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No picture, use the visualisation at the top of the page.

Power supply up to +35/-35 VDC. LM3886 datasheet.
Details: PA150 - 3x LM3886 PCB assembly guide
PA150 - 3x LM3886 PCB assembly guide

I has been well tested by alex88. Testing and measurement:
DIY BPA300 6x LM3886 300W audio Amplifier

It is still the same project, except the capacitors which were moved from the bottom to the top, C10 (10u) replaced with wima (better solution), and some downsizing.
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Old 26th June 2012, 02:06 PM   #6
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Join Date: Dec 2011
Location: Warsaw
For now:
syklab - 2 pcs
potepuh - 2 or 4 pcs
me - 2 pcs

and also on Polish dyi audio forums:
dekaenja - 2 pcs
kat01 - 2pcs

That is 10 or 12 altogether
The producer estimated the cost depending on quantity:
8 pieces - 10 EUR apiece
16 pieces - 7 EUR apiece

Anyone who is interested, just give me your e-mail address and I will send you some details.
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