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Old 10th February 2011, 08:02 PM   #1
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Default Class D Amp with LM566,LM393 and 2XIRF530

Simple 25W class D amp from 'Practical Electronic' Magazine.
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Old 10th February 2011, 08:25 PM   #2
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LM566 VCO seems unobtainable.
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Old 10th February 2011, 08:46 PM   #3
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Quote:
Originally Posted by Eva View Post
LM566 VCO seems unobtainable.
Yes, triangle oscilator can be done with MC1455 or with some OP.
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Old 11th February 2011, 07:41 PM   #4
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The funny magazine is sold in Poland as well I think.
BTW the amplifier is pure junk.
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Old 12th February 2011, 02:40 AM   #5
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The schematic looks just slightly under average, but PCB layout is terrible.

There are better ways to do it with these parts (and TL07x op-amp triangle generator and LM319 comparator, standard stuff).

One of the things I have in mind is making a simple DIY-friendly class D module with through hole parts (except a few SMD caps) and a "DIY friendly" double sided PCB (no tracks on top layer, just continuous ground plane), and find out how good can I get it.
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Last edited by Eva; 12th February 2011 at 02:50 AM.
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Old 12th February 2011, 11:46 PM   #6
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Quote:
Originally Posted by Eva View Post
One of the things I have in mind is making a simple DIY-friendly class D module with through hole parts (except a few SMD caps) and a "DIY friendly" double sided PCB (no tracks on top layer, just continuous ground plane), and find out how good can I get it.
I'll be waiting with interest on this. My PCB done in this manner is already doing fine and has a very large number of SMD parts - zero. But innovative stuff such as better gate drivers will be appreciated.
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Old 13th February 2011, 08:32 AM   #7
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This JBL class D amp for subwoofer can be made without SMD parts.
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Old 13th February 2011, 09:19 AM   #8
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I have in mind is making a simple DIY-friendly class D module with through hole parts
¡Al final!
Finally! The wait is over. Will there be a fitting SMPS as well?
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Old 13th February 2011, 10:25 AM   #9
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Simple 25W class D amp from 'Practical Electronic' Magazine.
is it this magazine (not the issue of the pic) about follow URL ??
Everyday Practical Electronic Magazine December 2007 » Full Software Downloads - Download For All
is this topology comparable to Hypex UcD ??

Last edited by tiefbassuebertr; 13th February 2011 at 10:36 AM.
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Old 13th February 2011, 10:46 AM   #10
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DIY friendly +/-50V SMPS PSU with two transformers recicled from ATX PSU.
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