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andrewlebon 31st January 2012 08:28 AM

Ultra Simple Class D
1 Attachment(s)
Hi Diyers
Greetings. simple 200W amp works first time on simple parts only I don't have output inductor with this inductor amp is working Credit goes to Norazmi for helping me to make this amp possible

Warm Regards
Andrew Lebon

vedmitraa 31st January 2012 05:54 PM

well done Andrew, you are proud of Agra.with love Vedmitraa

nrg2009 31st January 2012 06:16 PM

looks very simple and simple=good!
What chip did you use? what voltages are you using?

great job!

benb 31st January 2012 06:26 PM

That looked a little TOO amazing until I saw the two screws at the top holding down what appear to be TO-220 semiconductors on a heat sink underneath the board. I see the three leads of each coming up through the board. With a single-sided board it's gotta be simple!

nrg2009 31st January 2012 06:39 PM

How about a schematic?

andrewlebon 31st January 2012 11:55 PM

greetings i will post pcb and component layout for this simple amp
components ic TLO74 OUTPUT transistors IRF 540 IRF 9540
2N5401 2N5551 BD139 BD140 SUPPLYtransformeri used is 20 0 20 AC tested till
33 0 33 AC transformer all i can say it comes on first time output transistors
are very cool on 4ohm load amazing bass and clarity pcb size is 8cm by 5cm
for anyone making their first d class amp this amp is a good starting point 200
warm regards
andrew lebon

andrewlebon 1st February 2012 12:02 AM

pdf doucment size
greetings how to post schematic and pcb the pdf document is 300kb and forum allows only 190kb any wayto get schematic on forum
warm regards
andrew lebon

andrewlebon 1st February 2012 01:44 AM

trying to upload
1 Attachment(s)
trying to upload file pdf file size 299 kb

andrewlebon 1st February 2012 01:51 AM


nrg2009 1st February 2012 02:02 AM

Nice, very impressive. My hat is off to you.

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