Another LM3886 Amp

suds · 26th August 2009, 07:24 AM

Hi,

Here is my design of LM3886 based Amplifiers.
The Schematic references is from shine7.com with Permission from Alex. (Thanks)

I have made, Single IC LM3886 Amp, PA100 Type, and PA150 Type.

Link to Images for LM3886 Chip Amp PCB Layout:

http://www.box.net/shared/h0r1ikh2m4

Suggestions / Advice / Comments Welcome..

Thanks

peranders · 26th August 2009, 02:25 PM

The power traces are a bit thin. Make them as wide as you can but at least 3 mm. Three LM3886 can handle 33 A! Since you have got inspiration from shine7, check out how he has made power planes in all high current areas.

suds · 27th August 2009, 10:42 AM

Thanks for Comment, I have made the changes , uploaded the files..
Will use, 1.6mm Board, PTH Double Side, 70micron copper

http://www.box.net/shared/h0r1ikh2m4

suds · 8th September 2009, 08:15 AM

LM3886 PCB's are ready.. see the above link (images updated)
Will build Amps on weekend, will post images of ready amps later next week.

Link once again : LM3886 PCB Images

Thanks

suds · 8th October 2009, 07:03 AM

Here is PSU Proto Image..
http://www.box.net/shared/qcijdyrn2v

26th August 2009, 07:24 AM	#1
suds diyAudio Member Join Date: Feb 2006 Location: Bangalore	Another LM3886 Amp Hi, Here is my design of LM3886 based Amplifiers. The Schematic references is from shine7.com with Permission from Alex. (Thanks) I have made, Single IC LM3886 Amp, PA100 Type, and PA150 Type. Link to Images for LM3886 Chip Amp PCB Layout: http://www.box.net/shared/h0r1ikh2m4 Suggestions / Advice / Comments Welcome.. Thanks __________________ ~suds~

26th August 2009, 02:25 PM	#2
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	The power traces are a bit thin. Make them as wide as you can but at least 3 mm. Three LM3886 can handle 33 A! Since you have got inspiration from shine7, check out how he has made power planes in all high current areas. __________________ /Per-Anders (my first name) or P-A as my friends call me

27th August 2009, 10:42 AM	#3
suds diyAudio Member Join Date: Feb 2006 Location: Bangalore	Thanks for Comment, I have made the changes , uploaded the files.. Will use, 1.6mm Board, PTH Double Side, 70micron copper http://www.box.net/shared/h0r1ikh2m4 __________________ ~suds~

8th September 2009, 08:15 AM	#4
suds diyAudio Member Join Date: Feb 2006 Location: Bangalore	LM3886 PCB's are ready LM3886 PCB's are ready.. see the above link (images updated) Will build Amps on weekend, will post images of ready amps later next week. Link once again : LM3886 PCB Images Thanks __________________ ~suds~

8th October 2009, 07:03 AM	#5
suds diyAudio Member Join Date: Feb 2006 Location: Bangalore	Here is PSU Proto Image.. http://www.box.net/shared/qcijdyrn2v __________________ ~suds~


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