My DIY UCD

[jonastrindadebairros]

I used only one pair of mosfet irfp260, but I'm preparing to use 2 pairs of irfp4768 or ixfk150n30

 

[jonastrindadebairros]

I will increase the voltage from 12 to 13v and 15v on the auxiliary and make tests.

 

[stewin]

I will increase the voltage from 12 to 13v and 15v on the auxiliary and make tests.

12volts is enough just increase the current.

 

[jonastrindadebairros]

ok, thank you

 

[stewin]

any photos jonas ?? of your project

 

[jonastrindadebairros]

any photos jonas ?? of your project

stop full,

 

[auwdio]

xlite comments

Update final schematic.
XLITE UCD VER.3

hello,
Nice ucd implementation.
I have a question about c5 and c6 (470p), they slow down switching, why are they needed?
Then d4 and d6 should be shottky diodes (0.3v) to stop saturation of q2 and q4, now their function is almost none

gr,
Niek.

 

[furiosdevil]

UcD Xlite v.2

ne5532 can replace with TL072??? in ucd xlite v.2????

 

[kartino]

hi katrino i had made this amp , the version of classd from ru the amp was nice and clear the only disadvantage is that i never had good fets i used irf540 for low power and irfp250 for hi power. when i used hi voltage like +/-70vlts the amp failed i suspect it was the fets but now that i have irfb4227 and many smd parts e.g mmbt5401/5551 mmbt 4403/3903 i will revist the project.

by the way how many voltage are you using with your discreet version? also your load and output fets that you have used?

diysmps

diysmps

Hi,

Compare with my schematic.
The russian version is not safe for big output. A small different maybe looked nothing but I put a lot effort to make the amp very stable.

 

[joaolima]

hello everyone congratulations for the kartino projects I'm joaolima from brazil I'm a hobby hobbyist for electronics and wanting to build amps class d discrete too
I downloaded the schemas you posted I would like to know if I can use mpsa92 and mpsa42 instead of 2n5401 and 5551 in advance thanks

 

[joaolima]

Hello would you like to know where to change to lower the frequency of xlite amps?