ucd 25 watts to 1200 watts using 2 mosfets

[don2007ksa]

Hi jancso2002 the one i post is intended for chago25 for part's placement reference only not the P.C.B. layout.Don't be confused,if you already build the IRS900 then compare that layout to the one i post and you can see the difference.(please notice the P.C.B. layout)thank's.

[jancso2002]

Originally Posted by don2007ksa

Hi jancso2002 the one i post is intended for chago25 for part's placement reference only not the P.C.B. layout.Don't be confused,if you already build the IRS900 then compare that layout to the one i post and you can see the difference.(please notice the P.C.B. layout)thank's.

I do not confuse the scheme IRS 900 to IRS 2000, I wanted to say that even with modifications IRS 2000 base-emitter of transistor 2nXXXX not go into oscillation only periodically (PCB by Tien ....)

[Noobieme25]

Originally Posted by andrewlebon

NANOS PCB for 3 pair

warm regards
andrew lebon

http://www.diyaudio.com/forums/attac...89611297_o.jpg does this circuit is already tested? any comment?

[Mario Mota]

Originally Posted by Noobieme25

http://www.diyaudio.com/forums/attac...89611297_o.jpg does this circuit is already tested? any comment?

yes have tested the circuit. but is missing a capacitor 470N between feedings.

[andrewlebon]

Hello
greetings 3 pair amp tested with bd totem 3 pair irfp260n no issues with amp
sound quality or power
warm regards
andrew lebon

[Noobieme25]

Originally Posted by andrewlebon

Hello
greetings 3 pair amp tested with bd totem 3 pair irfp260n no issues with amp
sound quality or power
warm regards
andrew lebon

thanks for reply... hello andrewlebon do u have copy of its overlay? coz i cant see its schem or overlay parts just a pcb design tnx

[Hadighorbani]

Hi to all
HI sir manoj
sorry for my late
i have hisssss in my amp
when i conect gnd from my car cd payer to your amp gnd then it have hummmm
i try turn on your amp without power section
i use one lm7812 for bias but it dose not worked. why?
i cannot find out the amp FERQ beacuse i dont have that divases
how much value resistor for change FREQ
i need change over curent and short circute optione too. which resistor was do this to me?
thanks

[Hadighorbani]

HI stewin
do you creat sir manoj amp ver 1.1 ?
what is the problem in this versione ?
have nice time to all
thanks

[NMOS]

Originally Posted by Hadighorbani

Hi to all
HI sir manoj
sorry for my late
i have hisssss in my amp
when i conect gnd from my car cd payer to your amp gnd then it have hummmm
i try turn on your amp without power section
i use one lm7812 for bias but it dose not worked. why?
i cannot find out the amp FERQ beacuse i dont have that divases
how much value resistor for change FREQ
i need change over curent and short circute optione too. which resistor was do this to me?
thanks

short question


what amp do you have build ?

can you send me schematic

[chago25]

Originally Posted by don2007ksa

To chago25,please check

thanks sir don2007ksa