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Old 14th February 2007, 09:08 PM   #1
MadFinn is offline MadFinn  Sweden
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Default Paralell LM3886

Hi all
I know there are earlier posts about this but i thought you helpfull dudes out there can give me some answers anyway
Does anyone have a Eagle schematic to a solution of a BPA200 or the BPA300 amp ???

And if anyone knows the person who has the site monster audio www.shine7.com i think is the websites name
He has done a real nice AMP

MadFinn
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Old 15th February 2007, 05:21 PM   #2
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I just bought two pieces the bpa150 copies pcb from China. It is just RMB$20 each Someone have copied the pcd and did some modifcation on pcb. He gives up th surface mount component. Click the image to open in full size.

Click the image to open in full size.


Click the image to open in full size.
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Old 15th February 2007, 07:15 PM   #3
MadFinn is offline MadFinn  Sweden
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Default Nice PCB'S

From who did you buy those nice cards ???
Du you have a component list for the amp ???
MadFinn
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Old 16th February 2007, 09:03 AM   #4
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I don't have the component list, but all required components are printed on the PCB. Perhaps, u may have reference to www.shine7.com.

This crazy guy nearly finish BPA300 board

Click the image to open in full size. .

Actually, I am often surfacing on some Chinese diy web site where u may find a lot of cheap stuff such as LM3886 chip, pcd etc. However, some of them might be fake. If u really want to buy something from them, u have to pay extremely carefull.

I may give u his email, but I don't know whether he can read English. U may PM me
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Old 16th February 2007, 09:03 AM   #5
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By the way, I also have two TDA7293 pcd board which is 3 chips parellel.

Click the image to open in full size.

http://www.hifidiy.net/bbs/UploadFil...2523280628.gif

I just make it working.. .. not bad
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Old 19th February 2007, 08:12 AM   #6
MadFinn is offline MadFinn  Sweden
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Default Come on folks

There must be more people that can give me some advice in this subject.
Please give me som info so i can start the building of a new amp
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Old 19th February 2007, 08:31 AM   #7
mateo88 is offline mateo88  United States
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http://www.national.com/an/AN/AN-1192.pdf#page=1


parallel two of the bridged modules using 0.1 ohm resistors in series with the output
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Old 19th February 2007, 10:22 PM   #8
beerman is offline beerman  United States
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Quote:
Originally posted by mateo88
http://www.national.com/an/AN/AN-1192.pdf#page=1


parallel two of the bridged modules using 0.1 ohm resistors in series with the output
This works without the additional op-amp components in the BPA200 module, listed on subsequent pages of the same PDF?

That might give me enough power to satisfy my basstooth.
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Old 28th February 2007, 10:51 PM   #9
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Default PCB SOURCE

Originally posted by yik_cheung
I just bought two pieces the bpa150 copies pcb from China.
It is just RMB$20 each Someone have copied the pcd and did some modifcation on pcb.
He gives up th surface mount component.

----------------------------------------------------------------

Hello YIK_CHEUNG

Do you have information on the PCB supplier for the BPA150 board?

Thanks in advance.

LS
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Old 1st March 2007, 02:51 AM   #10
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Hi dudaindc

I know this guy and I bought my BPA150 board from him. I may give u his contact problem. Do u have MSN acc? I may talk to u directly.
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