ucd 25 watts to 1200 watts using 2 mosfets

[apexaudio]

Originally Posted by exflaco

Sir Apex Could share pcb for D500 ,tanks a lots or only a proyect,not tested?

I can share pcb, but not tested.

[exflaco]

Hey sir Aper i work very hard on your Friendly DIY apex D500 ,never work ,yours clas AB and H very respeted in DIY forum ,y dont undestand because ,share bad schem and boards not tested , realy a joke ,Diyaudio the best.......

[exflaco]

Irvineyay ,the original IRS900 use IRFP250 and 100 ohm gate resistor?

[irvynejay]

Originally Posted by exflaco

Irvineyay ,the original IRS900 use IRFP250 and 100 ohm gate resistor?

yes gate resistor vary when other fets used

[abetir]

Originally Posted by t68kv

IRS-900

T68kv, sis favor can you post the diameter size of the toroid inductor and the wire gauge plus the no.of turns...?

I'll see if I can find similar size's on 2nd hand boards being sold in Raon area, I've been seeing a lot of boards with toroids in it, I can't DIY at the moment I just burned my pcb drill I might as well go parts hunting for the meantime.


Thanks!

[t68kv]

Abet,

Out Dia - 1.2"
In Dia - 0.7"
Height - 0.4"

Approx 20-22 turns of 16AWG

Remember, not all core have the same permeability value. I suggest that you also try using ferrite EE with gap 1-2mm gap.

[abetir]

^ OK! thanks,

My etched pcb for IRS900D (done manually), thanks Thien!





(Sorry, been using cellphone cam )

[sameer x1]

Hi Exflaco
greetings please check pcb with schematic for mistakes

sameerx1

[exflaco]

The tl084 power rail must be uncouple with 2 pairs 0.1uf and 25uf 50v respect to gnd (pin 4 y 11t) and the uper side totem pole 1n4148 is inverting, more late y see you more mistakes if find it, tanks exelent design sorry poor english

[andrewlebon]

Hi Sameerx1
greetings scrap this design gate tracks are to long make it like triell 1500 watts
warm regards
andrew lebon