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Class D Switching Power Amplifiers and Power D/A conversion

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Old 29th March 2014, 09:21 AM   #561
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Quote:
Originally Posted by apexaudio View Post
D200.1
hi Apex,

can I ask for PCB lay-out for D200.1? I would like to build your class d amp..

thanks..
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Old 31st March 2014, 07:01 AM   #562
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Quote:
Originally Posted by QQ12e5k1 View Post
Dear Mile..
Please check maybe there some error on my pcb.

Regards
sir QQ,

can I ask your PCB lay-out of d200.2. I would like to build d200.2.

thanks...
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Old 31st March 2014, 11:32 AM   #563
stewin is offline stewin  Kenya
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Join Date: Jul 2007
Quote:
Originally Posted by stewin View Post
hi sir apex

can i use +\-80vlts with a 2ohms load if i use irfb4227 as outputs ?


and how many turns have you used in the toroid t-106 2 output inductor?

thanking you in advance steve
any idea anyone?
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Old 25th April 2014, 07:06 AM   #564
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Location: delhi
hi apexaudio,

ml3 is not working with d class making strange noise en increasing the vol same wen increasing treble.tested with irs1500 as well the same situation.

thanks

ravs......
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Old 9th May 2014, 05:55 AM   #565
cook77 is offline cook77  Romania
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Location: Ro
Can you tell me what is the size of the PCB?
I tried D200 pcb and couldn't match CI pins with pcb's holes. My pcb is 15/6,5 cm. There are two ways of facing 2n5401&78l05 ; Which one is ok?
Ifound this amp on other forum but I can't understand (even using google translate )
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Old 11th May 2014, 08:36 AM   #566
cook77 is offline cook77  Romania
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I found out. It's 52mm X 120mm
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Old 11th May 2014, 09:22 AM   #567
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Hi Apex & DIYer,

Can I use inductors from COILCRAFT - VER2923-223KL?
any ideas???
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Old 11th May 2014, 09:33 AM   #568
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Send a message via Yahoo to ionutzxpo
hi dc sound, you can use them, they are made for audio
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Iacob Ionut
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Old 11th May 2014, 09:42 AM   #569
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Quote:
Originally Posted by ionutzxpo View Post
hi dc sound, you can use them, they are made for audio
thanks for your reply...
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Old 19th May 2014, 08:58 PM   #570
cook77 is offline cook77  Romania
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Did anyone finished APEX D200.2 ,test it, and can say: It's OK?It's working!
D200;D200.1 report OK.how about this one?
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