4780 stereo, parallel, bridged, single sided - diyAudio
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Old 6th July 2006, 05:22 AM   #1
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Default 4780 stereo, parallel, bridged, single sided

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
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Old 6th July 2006, 08:50 AM   #2
zek is offline zek  Serbia
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Will you be so kind to mark all elements (layout) on the PCB.
Thanks in advance.
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Old 6th July 2006, 12:07 PM   #3
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Default component layout

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
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Old 6th July 2006, 12:28 PM   #4
zek is offline zek  Serbia
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Thanks again
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Old 7th July 2006, 04:59 AM   #5
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enjoy
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Old 8th July 2006, 02:47 AM   #6
Leolabs is offline Leolabs  Malaysia
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Old 11th July 2006, 05:33 AM   #7
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With bigger pads for the IC but with an extra jumper.
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Old 25th August 2006, 09:09 AM   #8
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Default 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
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Old 25th August 2006, 12:28 PM   #9
stex is offline stex  Serbia
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Eny Eagle pcb files, schematics, or PDF files?
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Old 26th August 2006, 05:28 AM   #10
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Default 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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