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Class D Switching Power Amplifiers and Power D/A conversion

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Old 11th February 2013, 06:47 AM   #131
akraj is offline akraj  Bangladesh
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Default Address of Ferrite core shop in calcutta

Hi All:

Can anybody help me to locate toroid core shops in Calcutta (India)? I am looking for T106-2 or T157-2 for class D apm.

Thanks
Raj
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Old 11th February 2013, 08:31 AM   #132
pravpa is offline pravpa  India
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Default AUD600

Quote:
Originally Posted by syaelend View Post
Dear Manoj,

Could you please send the schematic Diagram of AUD600.
Below is my email address
syaelend@gmail.com
I really need it...

Thank you very much

Syaelend
Hello Syaelend,
For AUD600, Please check post #62
MY CLASS D AMP

Regards,
Pravpa
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Old 11th February 2013, 01:41 PM   #133
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Quote:
Originally Posted by pravpa View Post
Hello Syaelend,
For AUD600, Please check post #62
MY CLASS D AMP

Regards,
Pravpa
Dear Mr. Pravpa,

Thank you, On Post #62 only PCB Top print that exist, but no schematic diagram, We need The Schematic to Re lay out the PCB by Myself.
Where is I can got the Schematic of AUD600?

Thank you

Syaelend
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Old 16th February 2013, 05:05 PM   #134
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Quote:
Originally Posted by abetir View Post
Hi Manoj!

does this applies to AUD600?

You have mentioned T106-2 iron powder, I have them and I wanted them to be of use on AUD600, but before that....a few question here..

Can I power this amp using a lowly -/+35vdc? Was there a needed adjustment on the circuit?
Can I also use an external 12vdc bias circuit? (not the one on your psu board)
Please guide.

Regards!
Sir abetir where did you ordered your T106-2 iron powder core? Thanks
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Old 17th February 2013, 12:20 PM   #135
akraj is offline akraj  Bangladesh
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Smile Revised PCB for AUD600 Ver1.0

Hi Manoj:

I have revised a PCB design of AUD600 ver1.0. In this pcb heatsink will be placed on top of board and few more caps to eliminate EMI/noise.

Please let me know improvement areas.

Thanks
Raj
Attached Images
File Type: jpg AUD_600_Ver1.0.JPG (80.4 KB, 740 views)
Attached Files
File Type: pdf 001. AUD600 Ver1.0.PDF (570.7 KB, 443 views)
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Old 17th February 2013, 07:29 PM   #136
norazmi is offline norazmi  Malaysia
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looks good
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Old 18th February 2013, 05:53 AM   #137
manojtm is offline manojtm  India
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Hi AKRAJ,

Good design. use 18A(6mm) carrying HV track OR 4mm with lead coat.

and if you use AUD600 in bridge mode its give amazing power supply rail -/+73V

Regards
MANOJ

Last edited by manojtm; 18th February 2013 at 05:55 AM.
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Old 18th February 2013, 05:58 AM   #138
akraj is offline akraj  Bangladesh
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Quote:
Originally Posted by manojtm View Post
Hi AKRAJ,

Good design. use 18A(6mm) carrying HV track OR 4mm with lead coat.

and if you use AUD600 in bridge mode its give amazing power supply rail -/+73V

Regards
MANOJ
Hi Manoj:

Thanks for your suggestion. I will do that.


I also have ground pane at top layer, but not posted here. Do you think ground pane on top will improve quality?

Thanks
Raj
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Old 18th February 2013, 10:36 AM   #139
manojtm is offline manojtm  India
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Hi Raj,

IR2110 pin 5 not linked to junction point(feedback)

Quote:
Do you think ground pane on top will improve quality?
no improvements for sound quality

Regards
MANOJ

Last edited by manojtm; 18th February 2013 at 10:39 AM.
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Old 19th February 2013, 06:37 AM   #140
akraj is offline akraj  Bangladesh
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Quote:
Originally Posted by manojtm View Post
Hi Raj,

IR2110 pin 5 not linked to junction point(feedback)



no improvements for sound quality

Regards
MANOJ
Thanks a lot Manij, I will correct that. Except this everything is okay?

Can you please give me any address of Calcutta for T-106?

Thanks
Raj
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