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Simple Cheap Compact IC-based High Performance Amp 
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TODO updated, next up is cap and ground lift mounting. Then find fuse holders that are suitable. Lastly, I'll wire up the power supply and test that.

After that I wait for the heatsink to arrive, schematics to be drawn up, or do them myself, PCB layout to be done, or do it myself, then order, assemble, and enjoy!

NO! I _STILL_ haven't found any reasonable secondhand speakers to buy :-( This might be the biggest challenge of all.

Fred.

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Mon Dec 24, 2012 1:02 am
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Today, what better to do than assemble some heavy-duty circuits! Pics to come in next post, but for now: TODO updated!

Current TODO consists of:

  • Install new power socket/switch/fuse
  • Bolt down both bridge rectifiers
  • Figure out how to mount the filter caps and do it
  • Wire up all power supply components and test

And then finally:

  • Get schem/layout done

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n00bs, do NOT PM or email tech questions! Use the forum!
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Tue Dec 25, 2012 5:53 pm
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In order:

1) Snubber caps on main bridge
2-6) Ground lift circuit

Image

Image

Image

Image

Image

Image

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DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Tue Dec 25, 2012 9:45 pm
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Heat sink arrived! It has a somewhat "Don't fuck with me!" look to it, so I thought I'd play the same part for the shot:

Image

Usually I'm smiling in photos, so today I thought I'd be different. This is as close as I can fake to "Furious Fred" like the one that appears when people nearly run him over in Barcelona.

Fred.

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DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Thu Jan 03, 2013 10:12 pm
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LQFP144 - On Top Of The Game
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Wait a minute, that pic looks familiar........
Image

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Thu Jan 03, 2013 10:43 pm
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ROFL! Copyright infringement!!! :-o So I stole it back. Cached here as you've lost files from your server in the past ;-)

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FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Thu Jan 03, 2013 10:49 pm
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Infringe this!!!!!
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Thu Jan 03, 2013 11:37 pm
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I sure hope that this amp doesn't make any smoke! :-(

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FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Fri Jan 04, 2013 12:35 am
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LQFP144 - On Top Of The Game
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With that heat sink, I think you are covered. I would be more worried about gun smoke from your neighbors, after you turn the volume up :)

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Fri Jan 04, 2013 12:48 am
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ROFL!

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FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Fri Jan 04, 2013 1:14 am
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