Lm4780 Bridged PCB

Baracus · 4th January 2006, 11:20 PM

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

sangram · 5th January 2006, 04:41 AM

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

Dominick22 · 5th January 2006, 04:52 AM

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

sangram · 5th January 2006, 05:08 AM

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.

gmphadte · 5th January 2006, 06:39 AM

Not much changes necessary from parallel to bridge.
see the schematic below

Gajanan Phadte

sangram · 6th January 2006, 08:48 AM

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.

jackinnj · 6th January 2006, 11:06 AM

shameless plug -- see "BridgeClone"

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

and I'll send a reprint of the article.

Silkworm · 6th January 2006, 12:45 PM

Here is my LM4780 PCB

troystg · 7th January 2006, 12:45 AM

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

)

4th January 2006, 11:20 PM	#1
Baracus diyAudio Member Join Date: Jan 2006 Location: Poland Lodz	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

5th January 2006, 04:52 AM	#3
Dominick22 diyAudio Member Join Date: Aug 2005	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 __________________ A real amateur enthusiast!

6th January 2006, 12:45 PM	#8
Silkworm diyAudio Member Join Date: Oct 2005	LM4780 PCB Here is my LM4780 PCB

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5th January 2006, 04:41 AM	#2
sangram diyAudio Member Join Date: Sep 2002 Location: India	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

6th January 2006, 08:48 AM	#6
sangram diyAudio Member Join Date: Sep 2002 Location: India	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.

6th January 2006, 11:06 AM	#7
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	shameless plug -- see "BridgeClone" http://www.tech-diy.com/chipamps.htm and I'll send a reprint of the article.

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