UCD 25 watts to 1200 watts using 2 mosfets

[exflaco]

Stewin the protection work fine short circuit, and low imp ,tested

 

[exflaco]

Aucosticraft the 3200 is for sub low d'ont work fine at complete range ,a good PA class D lows , class H mids , And class ab higs

 

[exflaco]

Sameer you pcb a litle mistaque the-v rail is floating must be conect the zener positive to grnd ,coul share speaker delay and dc protect schematics'? tanks

 

[CPX]

Has anyone seen the performance of this amp with 20Khz input signals ?

its giving me problem when I Use 20Khz as input or mix 20Khz with 1Khz signal. the circuit stops oscillating.

You have bad layout..post it so i can give you some advice.

 

[andrewlebon]

"Un site d'audiophile" enceinte en béton - amplificateur mosfet ...
hi Exflaco
greetings this is the site for dc protect schematic posted by sameerx1 use BC547 BC557 for bc560 550
warm regards
andrew lebon

 

[exflaco]

Thanks a lot andrew lebon ,diyaudio the best diyers choice

 

[stewin]

Stewin the protection work fine short circuit, and low imp ,tested

thanks exflaco. pls post schema

 

[Aucosticraft]

You have bad layout..post it so i can give you some advice.

Thanks CPX, but the problem was when I simulated.but When today I re simulated it, it worked perfectly fine. ( I do not have oscilloscope.)also the physical amp sounds good.I am loving it.

 

[Aucosticraft]

About selection of Strands.

I was wondering about , what should be considered while deciding the number of strands for coil (for the skin effect). should we consider PWM frequency or the audio frequency range?

 

[exflaco]

Stewin tell my schem you interesting

 

[exflaco]

WOW::: the planet bigger......a 600 600 ohm aislattion
amplificador classe D 4700wrms 1ohms o mais potente do mundo C/ 142x142mm e peso 450g - YouTube

 

[de Ocampo]

Hello all Diyer
This my new class D , and i 'll checking it soon .

Thienchay, nice spacing you got there, it looks like you are using different parts is it a modified version? any plans on sharing the bottom artwork for toner transfer?

Hi all!,
I wonder if anyone of you had a clearer resolution of the pdf file for DIY share, using Detex IRS900, I have the Detex artwork but I don't think it is going to be successful on laser toner transfer, the image is so poor

 

[stewin]

Thienchay, nice spacing you got there, it looks like you are using different parts is it a modified version? any plans on sharing the bottom artwork for toner transfer?

Hi all!,
I wonder if anyone of you had a clearer resolution of the pdf file for DIY share, using Detex IRS900, I have the Detex artwork but I don't think it is going to be successful on laser toner transfer, the image is so poor

hi Thienchay , please remember the schematic also

 

[t68kv]

@abet

Try using cheshtap's remake of irs-900d.

 

[andrewlebon]

hello
geetings what should be the ideal permeability of core for dclass core since i am not so sure is 125 permeabilty the best core material in SENDUST KOOL MU material
warm regards
andrew lebon

 

[andrewlebon]

Sendust Toroidal Cores for Chokes and Inductors : CWS ByteMark, largest supplier of toroids, ferrite cores, iron powder cores, MPP cores and RF cores

 

[STAGE4]

Run Test 2 Reggae TC vs BTJ totem load 2kw per amp 2 ohms - YouTube

hm.....red red wine

 

[gerry_morales]

hi andrew check yorkville service manuals for class d powered speaker, they are using cool mu cores. magnetics 77191-a7 if i remember it right

 

[andrewlebon]

hi Gerry
greetings thanks for the information how are your d class amps playing
warm regards
andrew lebon

 

[exflaco]

Gerry yorkville use d class only in subwoofers at low frecuencie clocks ,many cores work fine ,full range hummmmmm........