UCD 25 watts to 1200 watts using 2 mosfets

[manojtm]

Hi hadi,

check +12v for realy supply. resistor 2k/5w for +75v supply(34mA current) . you should change with your need.
+35v you need 1k/5w resistor (34mA current).

regards
manoj

 

[manojtm]

i connect input signal
shild conect to GND
+ signal connect to + input
nothing conrct to - input and it is not connect to GND
right ?

Hi Hadi,

connect - input to GND
signal + input and GND

regards
MANOJ

 

[manojtm]

Hi Hadi,

speaker should be 4 or 8 ohms for first setup.

Regards

MANOJ

 

[manojtm]

Hi Hadi,
use this site for calculating resistor for your need(supply voltage ie. +35V, for full volume it comes down to near +30v so both you calculate and set the average value)

Ohm's Law Calculators

Regards
MANOJ

 

[Hadighorbani]

thanks to sir manoj

Hi hadi,

check +12v for realy supply. resistor 2k/5w for +75v supply(34mA current) . you should change with your need.
+35v you need 1k/5w resistor (34mA current).

regards
manoj

i use 1k 3w befor
the relay have about10 volt

 

[Hadighorbani]

thanks to sir manoj

Hi Hadi,

speaker should be 4 or 8 ohms for first setup.

Regards

MANOJ

it was 16 ohm
this speaker dont burning easey

 

[Hadighorbani]

thanks to sir manoj

Hi Hadi,
use this site for calculating resistor for your need(supply voltage ie. +35V, for full volume it comes down to near +30v so both you calculate and set the average value)

Ohm's Law Calculators

Regards
MANOJ

thanks dear friend

 

[manojtm]

Hi Hadi,
Check 6v rail also(+6&-6)
Regards
MANOJ

 

[stewin]

hi manoj GOD bless your kind spirit keep it up

 

[Hadighorbani]

thanks to sir manoj

Hi Hadi,
Check 6v rail also(+6&-6)
Regards
MANOJ

HI sir manoj
what is your perspective?
in bias between - and + leg we have 11.75 VDC
are you speak about bias or LM7806 ?

 

[manojtm]

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

 

[Hadighorbani]

thanks to sir manoj

ok

 

[Hadighorbani]

Hi sir manoj
it was in negative 5.54 and in pasetive is 5.24 VDC

 

[Hadighorbani]

How can creat 25uH selfe arund the ETD29 core for reduse EMI sir manoj amp ?

 

[manojtm]

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

 

[manojtm]

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

 

[Hadighorbani]

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 ?

 

[Hadighorbani]

can i use T106-2 for this amp sir manoj ?
say to me how can i creat filter self with this core ?

 

[manojtm]

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

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

 

[Hadighorbani]

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.