Ultra Simple Class D

[stewin]

hi all , kindly help me out .
will this protection schematic work?

 

[doityourselfamp]

hi all , kindly help me out .
will this protection schematic work?

Hi Stewin
how are you today?
are you test this schematic?
is it worked properly good?
do you have pcb file for it too?
thank you

 

[stewin]

hi all , i have made another version of this amp in smd style . i have added 10caps to help in dynamic power.

The amp is working fine ,

enjoy all

kindly any opinion will be appreciated .

 

[stewin]

hi all , can the fets irf3710 and irf5210 be used in this amp ,
this fets have a good current rating .

 

[Hlaford]

Total gate charge of these is bigger than the original, so they'll either be more demanding on a driver side, or slower to turn on and off, in which case you may expect more cross conduction and heating.

 

[stewin]

Total gate charge of these is bigger than the original, so they'll either be more demanding on a driver side, or slower to turn on and off, in which case you may expect more cross conduction and heating.

oh ok thanks sir , noted

 

[sweetperfume]

Has anyone tried paralleling mosfets For this design?
i tried to add extra irf9540 but does not work. Any suggestions will be highly appreciated.

 

[stewin]

Has anyone tried paralleling mosfets For this design?
i tried to add extra irf9540 but does not work. Any suggestions will be highly appreciated.

kindly provide photos and schematic of your build

 

[sweetperfume]

kindly provide photos and schematic of your build

It is same as you have used in your builds. Just added an extra irf9540

 

[sweetperfume]

Hasn’t anybody paralleled mosfets on this one?

 

[stewin]

Hasn’t anybody paralleled mosfets on this one?

kindly post photos of your build, top and bottom

 

[stewin]

hi all i have made latest designs did not incorporate dc protect relay or many caps . it is just plain with two capacitors

all files are below have fun all

 

[stewin]

more photos

 

[stewin]

hi all can BCX53 and BCX56 used to replace bc 327 and bc 337 ? are they fast enough ?

 

[Freedom666]

Is it possible to use air core inductors on the output?

 

[stewin]

hi all can BCX53 and BCX56 used to replace bc 327 and bc 337 ? are they fast enough ?

thanks @ sweetperfume it is possible.

it is not advisable @ freedom666 because of stray inductance

 

[Nairobian_clout]

This is a self oscillating d amp, Have you measured the efficiency

 

[stewin]

hello all ,
here is a stereo version with ocp start delay and dcp protection . your views and ideas are welcomed

 

[stewin]

hello all completed the stereo version with relay and dc ocp protection

 

[stewin]

hello all ,
here is a stereo version with ocp start delay and dcp protection . your views and ideas are welcomed

photos of the build