Where can I get schematic of a minimalist LM3886 for sub use ?

[goldyrathore]

Hi,

Can someone pls provide me the link to a minimalist (Bridged/Parallel) schematic of LM3886 for sub use ?
I assume its done before.

Thanks in advance,
Goldy

 

[mik]

http://audioclone.free.fr/divers.html

 

[BobEllis]

have a look at the app note at www.National.com

 

[macboy]

have a look at the app note at www.National.com

Specifically, AN-1192.
Also don't forget about the Overture Design Guide speadsheet, and the how-to for it.

As a general rule of thumb, bridged amps work well for 8 ohm (or higher) loads, parallel amps work well for 4 ohm (or lower) loads, and a bridged-parallel can work great for 8 ohms or lower. "Or lower" implies you must parallel more chips to handle the increased load, but there is essentially no limit to the number that you can parallel.

 

[jackinnj]

Why "minimalist" ? -- there is no benefit, only risk, to omitting a few decoupling capacitors -- the AN-1192 outline is simple and straightforward.