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Old 25th November 2012, 07:29 AM   #2951
manojtm is offline manojtm  India
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Quote:
in bias between - and + leg we have 11.75 VDC
Hi Hadi,

OK. check the voltage given for TLO71 & 72 IC (GND and -6V, GND and +6V)
it will took max 7.5mA cuurent (35V supply 3.3k/3w you will get 10mA)

if it is below 5V you need to change the resistor value to 1k/3w.

My new AUD600 rev.1.3 i used TL783 ic for +6v and relay +12v supply.

regards
MANOJ
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Old 25th November 2012, 08:48 AM   #2952
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Default thanks to sir manoj

ok
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Old 25th November 2012, 10:10 AM   #2953
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Hi sir manoj
it was in negative 5.54 and in pasetive is 5.24 VDC
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Old 25th November 2012, 12:19 PM   #2954
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How can creat 25uH selfe arund the ETD29 core for reduse EMI sir manoj amp ?
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Old 26th November 2012, 04:56 AM   #2955
manojtm is offline manojtm  India
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Quote:
How can creat 25uH selfe arund the ETD29 core for reduse EMI sir manoj amp ?
Hi Hadi,

25uH is used to reduce EMI in output wave. Initially you do the AMP work perfectly. you don't worried about output filter noise . you need to shield for reduce this.

Regards
Manoj
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Old 26th November 2012, 05:36 AM   #2956
manojtm is offline manojtm  India
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Hi Hadi,

0.6mm 24 Turns for 25uH. both winding start point i marked (big dot).first you wound 70uH after complete then 25uH

Regards
MANOJ
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Old 26th November 2012, 09:50 AM   #2957
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Hi sir manoj
ver 1.1 was not work
i thing some thing was error in that board
i creat ver 1.0
it was work good for 2 hour
i have 0.8mm wire
i creat 25 uH with 22 turn of 0.8mm wire
i creat 25uH and after that creat 70 uH with 40turn of 0.8mm wire
when i conect the 25uH to the amp board then ETD29 go to truble hot just in several secound and mosfet too and 4.7 ohm resistor near the relay burn
without 25uH amp work good even without mosfets heatsing
what about in your new vertion ?
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Old 26th November 2012, 10:14 AM   #2958
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can i use T106-2 for this amp sir manoj ?
say to me how can i creat filter self with this core ?

Last edited by Hadighorbani; 26th November 2012 at 10:29 AM.
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Old 26th November 2012, 10:32 AM   #2959
manojtm is offline manojtm  India
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Quote:
can i use T106-2 for this amp sir manoj ?
Hi Hadi,

Thanks for pointing errors(rev. 1.1) I will re-check the PCB. and get back to you

Yes you can use 106-2. use only single winding.

T106-2 you need 80Turns for @65uH

Quote:
i creat 25uH and after that creat 70 uH with 40turn of 0.8mm wire
when i conect the 25uH to the amp board then ETD29 go to truble hot just in several secound and mosfet too and 4.7 ohm resistor near the relay burn
I think your winding polarity reversed.

Regards
MANOJ
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Old 26th November 2012, 10:51 AM   #2960
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yes
i thing too
i creat that yesterday
that time you dont have pm for me
thanks dear friend
do you creat ver 1.3 ?
i dont have a good and power full smps
i realy need one for best testing your amp sir.
thanks for every thing you do.
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