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Old 4th January 2006, 11:20 PM   #1
Baracus is offline Baracus  Poland
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Default Lm4780 Bridged PCB

Hello

I have a question, where i can find some links to
Bridged LM 4780 PCB Designs, two sided .
Every site has Parallel PCBs.

Thanks in advance
Baracus
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Old 5th January 2006, 04:41 AM   #2
sangram is offline sangram  India
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Peter's PCBs work fine in Stereo, bridged or parallel. You just have to install/not install certain components to get it to work in the mode you want.

edit: that thread is the "Audiosector" thread in the Vendor's bazaar, or www.audiosector.com
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Old 5th January 2006, 04:52 AM   #3
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I will affirm that AUDIOSECTOR is a great place to buy.

Peter Daniel is more than willing to assist and is also quick to do so.
I plan on conducting future business with him.

Good Luck,
Dominick in New Jersey
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Old 5th January 2006, 05:08 AM   #4
sangram is offline sangram  India
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Quote:
Originally posted by Dominick22
I will affirm that AUDIOSECTOR is a great place to buy.

Peter Daniel is more than willing to assist and is also quick to do so.
I plan on conducting future business with him.

Good Luck,
Dominick in New Jersey
I agree completely.
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Old 5th January 2006, 06:39 AM   #5
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Not much changes necessary from parallel to bridge.
see the schematic below

Gajanan Phadte
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File Type: jpg bridge para.jpg (33.3 KB, 584 views)
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Old 6th January 2006, 08:48 AM   #6
sangram is offline sangram  India
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mmmm Yes, but if you're following National's schema then you'll need to work on Peter's board a bit as it's configured only for non-inverting. For the inverting side you'll have to take input at a specific point, and change some of the resistor values, and not put some at all. It's simpler to have a small inverting opamp at the second input.
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Old 6th January 2006, 11:06 AM   #7
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shameless plug -- see "BridgeClone"

http://www.tech-diy.com/chipamps.htm

and I'll send a reprint of the article.
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Old 6th January 2006, 12:45 PM   #8
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Talking LM4780 PCB

Here is my LM4780 PCB


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Old 7th January 2006, 12:45 AM   #9
troystg is offline troystg  United States
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Quote:
Originally posted by jackinnj
shameless plug -- see "BridgeClone"

http://www.tech-diy.com/chipamps.htm

and I'll send a reprint of the article.

I don't consider that a shameless plug at all since that is EXACTLY what he was asking for.

( I am affiliated only with myself )
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