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Old 23rd October 2006, 03:05 PM   #1
deiksac is offline deiksac  Czech Republic
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Default High Power Chip-based Amplifier?

Tried some basic searching on the forum but did not get to any satisfactory result.

My question is: Is it easily possible to build a chip-based amplifier able to deliver say 600W peak / 300 W average into 8 Ohm load?
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Old 23rd October 2006, 03:39 PM   #2
Nordic is offline Nordic  South Africa
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Have a look at this, not quite up there where you wanted... but better than no reply...

http://www.national.com/an/AN/AN-1192.pdf
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Old 23rd October 2006, 04:48 PM   #3
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Look into the LM4702, it should be possible but not as easy to use as a chip amp. With up to +/-100V rails (A version, not out yet) there is great potential for power. +/-75V, the B or C version, can't remember, should get you pretty close to 300W into 8 ohms. Not a ton of info about this part out there but check out the datasheet at National's website.

-SL
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Old 23rd October 2006, 06:57 PM   #4
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Default high power GC

use LM3886 Times 6 at 40VDC+/- rails in a bridged parallel configuration will give you about 300 watts into an 8 ohm load.
The LM4870 is not a good idea becuase of its reduced dissipation, and dissipation is of major concern with a BPA design.
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Old 24th October 2006, 03:09 AM   #5
chingon is offline chingon  Mexico
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seems to me this is what halo is talking about:
http://www.shine7.com/audio/bpa300.htm
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Old 24th October 2006, 10:31 AM   #6
audioPT is offline audioPT  Portugal
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chingon,

check my site:
http://audiopt.pm-si.com/

It's in portuguese, but you can use google to translate it.
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Old 24th October 2006, 12:30 PM   #7
deiksac is offline deiksac  Czech Republic
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Thanks for the info, guys :-)
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