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Class D Switching Power Amplifiers and Power D/A conversion

Class D Amp with LM566,LM393 and 2XIRF530
Class D Amp with LM566,LM393 and 2XIRF530
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Old 21st February 2013, 02:39 PM   #361
apexaudio is offline apexaudio  Serbia
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Quote:
Originally Posted by Hadighorbani View Post
hi sir mile
share PCB please
i want test your amp again
thanks
This is same circuit, amp must work on old pcb.
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Old 21st February 2013, 02:55 PM   #362
suryadi5417 is offline suryadi5417  Indonesia
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Quote:
Originally Posted by apexaudio View Post
100nF/100V and two 0R1/2W instead 0R1/5W was add with litle pcb change.
nice pcb, but still can't find the iron powder..... ooooo i,m so frustasion
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Old 21st February 2013, 04:20 PM   #363
krakow is offline krakow  France
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For power resistor (2k2/2W - 10r/2W - 0r1/5W) can I use coil resistor ?
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Old 21st February 2013, 04:50 PM   #364
apexaudio is offline apexaudio  Serbia
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Originally Posted by lycanlk View Post
Dear Mile,

Nice to see that you are working on the new PCB. But I still see there's no space for a heatsink on outputs.

When I turn off D200, it will give me a funny noise (like a siren going from high to low frequency) until rail caps discharge. Any suggestions please ?

Thanks
Outputs and heatsink are on botom side of pcb, use speaker protect with NE555.
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Old 21st February 2013, 04:51 PM   #365
apexaudio is offline apexaudio  Serbia
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Quote:
Originally Posted by krakow View Post
For power resistor (2k2/2W - 10r/2W - 0r1/5W) can I use coil resistor ?
You can use any kind of resistors.
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Old 21st February 2013, 11:03 PM   #366
de Ocampo is offline de Ocampo  Philippines
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Sir Mile,

How about these type for the O/C protect, are they suitable for D200?

Regards!
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Old 22nd February 2013, 08:00 AM   #367
apexaudio is offline apexaudio  Serbia
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Originally Posted by abetir View Post
Sir Mile,

How about these type for the O/C protect, are they suitable for D200?

Regards!
0,033R can be use with IRFB4227, but 0,005R can be use only in O/C protect with LM311 comparator ( D500 O/C circuit ).
Regards
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Old 22nd February 2013, 04:02 PM   #368
suryadi5417 is offline suryadi5417  Indonesia
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at last my D200 is singing.... using coil from computer psu and not hot just warm, i,m HAPPY now... YESSSS
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File Type: jpg DSC_0422.jpg (330.8 KB, 848 views)
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Old 22nd February 2013, 04:42 PM   #369
apexaudio is offline apexaudio  Serbia
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Quote:
Originally Posted by suryadi5417 View Post
at last my D200 is singing.... using coil from computer psu and not hot just warm, i,m HAPPY now... YESSSS
Nice work, coil isn't rewind?
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Old 22nd February 2013, 06:43 PM   #370
krakow is offline krakow  France
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Quote:
Originally Posted by suryadi5417 View Post
at last my D200 is singing.... using coil from computer psu and not hot just warm, i,m HAPPY now... YESSSS
Hello,

what is the brand of the 0.47F and 0.22F capacitors?
Because my seller don't sell WIMA capacitors.

Scuse my Frenchy English

Thanks
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