10 channel, PCB-free chipamp completed!! - Page 3

Spasticteapot · 11th January 2006, 11:27 PM

Where may I find plans or a schematic for one of these? Admittedly, I'd only need 6 channels, but 10 would be sweet.

MikeLewis · 12th January 2006, 12:11 AM

The schematics are based mostly upon these by carlosfm

PSU Thread:
The (high-cap.) unregulated PSU for chipamps

Amp Thread:
Improving the Non-Inverting chipamp

Here's what I believe is the most recent schematics from each thread:
http://www.diyaudio.com/forums/attac...amp=1131923246

Major changes in my implementation was appropriately increasing the power handling of the components in the PSU. Each psu uses its own 625VA trafo. Another thing was that I used different diodes, ones that could handle the Amps I was demanding. I know a lot of its overkill, but I specced all components for worst-case scenario, so it could handle indefinitely it's 'max' power on all channels, including peaks over the max RMS without bottoming out the filter caps. The diodes were either, MSR1560 or MUR1660, can't remember which

Physically, I jsut came up with a way to fit suff in the case and went from there.

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11th January 2006, 11:27 PM	#21
Spasticteapot diyAudio Member Join Date: Jan 2006 Location: Wisconsin....what did you expect?	Where may I find plans or a schematic for one of these? Admittedly, I'd only need 6 channels, but 10 would be sweet.

12th January 2006, 12:11 AM	#22
MikeLewis diyAudio Member Join Date: Aug 2005	The schematics are based mostly upon these by carlosfm PSU Thread: The (high-cap.) unregulated PSU for chipamps Amp Thread: Improving the Non-Inverting chipamp Here's what I believe is the most recent schematics from each thread: http://www.diyaudio.com/forums/attac...amp=1131923246 Major changes in my implementation was appropriately increasing the power handling of the components in the PSU. Each psu uses its own 625VA trafo. Another thing was that I used different diodes, ones that could handle the Amps I was demanding. I know a lot of its overkill, but I specced all components for worst-case scenario, so it could handle indefinitely it's 'max' power on all channels, including peaks over the max RMS without bottoming out the filter caps. The diodes were either, MSR1560 or MUR1660, can't remember which Physically, I jsut came up with a way to fit suff in the case and went from there.

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