4780 stereo, parallel, bridged, single sided

gmphadte · 6th July 2006, 04:22 AM

Here is an all in one pcb for LM4780.
There are four compulsory jumpers.
The pcb is stereo ready, that means no cuts/bridges are necessary for stereo.
This is an improved version of the design posted here

Also refer the above link for help in assebling.

Gajanan Phadte

zek · 6th July 2006, 07:50 AM

Will you be so kind to mark all elements (layout) on the PCB.
Thanks in advance.

gmphadte · 6th July 2006, 11:07 AM

Quote:

Will you be so kind to mark all elements (layout) on the PCB.

Refer post #14 in above link for values.

4 Orange jumpers are mandatory for all configs.
Green for parallel, follow fig on datasheet
Pink for Bridged, follow fig on datasheet

There are blank spaces for extra filter capacitors, if needed.
Blue are resistors, purple are caps

Gajanan Phadte

zek · 6th July 2006, 11:28 AM

Thanks again

gmphadte · 7th July 2006, 03:59 AM

enjoy

Leolabs · 8th July 2006, 01:47 AM

gmphadte · 11th July 2006, 04:33 AM

With bigger pads for the IC but with an extra jumper.

carumartins · 25th August 2006, 08:09 AM

Hi Gajanan,

This is Caro, i'm from Goa as well. I was interested in building a Parallel 4780 amp, i was wondering if you've done you'rs. And wanted to know where you got the transformer from.

Can we get in touch.

my email is carumartins@gmx.net

stex · 25th August 2006, 11:28 AM

Eny Eagle pcb files, schematics, or PDF files?

carumartins · 26th August 2006, 04:28 AM

I'm thinking of working with the one suggested by gajanan, and the schematic of BPA 200 using 2 LM4780's.

25th August 2006, 08:09 AM	#8
carumartins diyAudio Member Join Date: Aug 2006	Another Goan Here Hi Gajanan, This is Caro, i'm from Goa as well. I was interested in building a Parallel 4780 amp, i was wondering if you've done you'rs. And wanted to know where you got the transformer from. Can we get in touch. my email is carumartins@gmx.net

26th August 2006, 04:28 AM	#10
carumartins diyAudio Member Join Date: Aug 2006	pcbs I'm thinking of working with the one suggested by gajanan, and the schematic of BPA 200 using 2 LM4780's.

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6th July 2006, 07:50 AM	#2
zek diyAudio Member Join Date: Aug 2003 Location: Belgrade, Serbia	Will you be so kind to mark all elements (layout) on the PCB. Thanks in advance.

6th July 2006, 11:28 AM	#4
zek diyAudio Member Join Date: Aug 2003 Location: Belgrade, Serbia	Thanks again

7th July 2006, 03:59 AM	#5
gmphadte diyAudio Member Join Date: Jul 2003 Location: Dona paula, Goa	enjoy

8th July 2006, 01:47 AM	#6
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam

25th August 2006, 11:28 AM	#9
stex diyAudio Member Join Date: Jun 2004 Location: Paracin Serbia	Eny Eagle pcb files, schematics, or PDF files?

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