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Old 15th January 2013, 04:09 PM   #51
manojtm is offline manojtm  India
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Quote:
how much gap is good for ee type cores ?
Hi IR,

it depends supply voltage applied to the amp / max. 4mm gap and min. 1mm gap

Regards
MANOJ
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Old 19th January 2013, 12:15 PM   #52
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Quote:
Originally Posted by manojtm View Post
Hi Max,

These are my old class d designs don't ask me the schematics(again go for searching my scratch papers)all parts are listed in the silks screen layout except post 22(1000W amp)that i will give you on PM if you are interested.

Regards
MANOJ
Please send my mail: as.rebachuck@gmail.com
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Old 21st January 2013, 07:22 AM   #53
manojtm is offline manojtm  India
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Hi Ravpreet,

my old simple tone control

Regards
MANOJ
Attached Files
File Type: pdf TONE CONTpcb.pdf (11.5 KB, 557 views)
File Type: pdf TONE CONTsilk.pdf (18.8 KB, 460 views)
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Old 21st January 2013, 07:32 AM   #54
manojtm is offline manojtm  India
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Hi ravpreet,

OUT R resistor 1K connected wrongly(connect to Vcc pin 8) cut the print line and connect to out 2 pin 7 use a small wire

Regards
MANOJ

Last edited by manojtm; 21st January 2013 at 07:34 AM.
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Old 21st January 2013, 07:55 AM   #55
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very very thanks
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Old 21st January 2013, 01:37 PM   #56
pravpa is offline pravpa  India
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Default AUD600 with sub crossover

Quote:
Originally Posted by manojtm View Post
Hi Prav,

Use my AUD600 with sub crossover

Regards
MANOJ
Manoj Sir,

I have gone through the forum and downloaded the necessary artwork for AUD600. I would like to know the total expenditure to make a budget (in Rs).

Regards,
Pravin
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Old 21st January 2013, 03:02 PM   #57
IRSound is offline IRSound  Germany
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Hi Manoj,

what is the effect of gate resistor on mosfet dissipating power and fsw of amp ?
39 ohm gate resistor is good for 250~300KHz and IRFB4227 ?
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Old 21st January 2013, 05:48 PM   #58
Vostro is offline Vostro  South Africa
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Quote:
I have gone through the forum and downloaded the necessary artwork for AUD600
Hi Pravpa, do you mind posting the artworks for AUD600,
Im also going to make this Amp, but finding all the details isnt made easy.

Thanks
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Old 22nd January 2013, 05:41 AM   #59
manojtm is offline manojtm  India
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Quote:
what is the effect of gate resistor on mosfet dissipating power and fsw of amp ?
39 ohm gate resistor is good for 250~300KHz and IRFB4227 ?
Hi IR,

gate resistor is very critical on high frequency side. MOSFET gate capacitor increases the resistor value decreases and gate current will increases
practically i found that freq.=300Khz=130nC = @1A and i don't know the calculation

another i found above 25 ohms gate resistor will give the stability (max.100R)

Regards
MANOJ
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Old 22nd January 2013, 02:30 PM   #60
IRSound is offline IRSound  Germany
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Thanks Manoj

please refer to this post :

Class D Amp with LM566,LM393 and 2XIRF530

Regards
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