Need high power sub chip amp .

[darkm4n]

Hi ,

I really need a high power ( 150 w or more RMS ) chip amp schematic to drive a big subwoofer .. can anyone help me ??
The transformer i will use is a 24 V x 2 at 10 Amp's .

THANKS !!!

[maxw]

2x bridged LM4780's maybe?

[Stuart Easson]

If you can find them the STK power modules are easy to use and offer a braod range of outputs. ie STK4040xi, 100w/4ohms, upto STK4050v : 200w/8ohms. I don't think they incorporate a lot of protection in the module so are probably not the most robust of amps, but if you are encapsulating everything in a sub it should be perfect. My velodyne servo12's use stk4040v, 70w/8ohm, so I know these work pretty well in a sub.

Stuart

[UrSv]

Go to National.com and search for appnote AN-1192.

[shanemac]

I came accross these while out surfing the web and the compnay seams to have a few new interesting products - I wonder if they offer "samples"...

http://www.tripath.com/pb3020.htm


I'm also wondering if anyone here has played with these chips in a DIY design, I'd be interested to see/hear how it worked out.

cheers,

[carlmart]

Originally posted by shanemac
I came accross these while out surfing the web and the compnay seams to have a few new interesting products - I wonder if they offer "samples"...

http://www.tripath.com/pb3020.htm


I'm also wondering if anyone here has played with these chips in a DIY design, I'd be interested to see/hear how it worked out.

Keep dreaming! They don't provide samples.

Did you look for threads on the DIY Forum over Tripath? There should be a few.


Carlos