UCD 25 watts to 1200 watts using 2 mosfets

[andrewlebon]

higher power smps

small smps under construction trafos 2 heavy

 

[Hadighorbani]

hi
no one can not hellp me for create IRS900 and IRS1500 ?!!!!!!!!!!!!!!

 

[exflaco]

Hadi IRS 900 its easy and work cheap material use a correct pcb and the out filter coul use
ei33 old pc with gap 1mm and the sound its very good start 45v and irf640 good choice

 

[andrewlebon]

DSCN3793 - YouTube

 

[Hadighorbani]

thanks to exflaco

Hadi IRS 900 its easy and work cheap material use a correct pcb and the out filter coul use
ei33 old pc with gap 1mm and the sound its very good start 45v and irf640 good choice

Hi
mey be my pcb was wrong
but i dont have another pcb file
do you have it ?
i have T106-2 and dont need EI33
i was used IRF250N and 1K ohm OSC resistor
in 45 volt my IRS900 generate smoke in filter capasitor
how much power with IRF640N can generat this amp ?

 

[luizcpimenta]

My new layout for 1KW Class D with onboard OCP and onboard bias supply.
2 Pairs IRFB4227 TO-220

Good day.
Could you send me the files of this amplifier?
Thank you.
luizcpimenta@gmail.com
luizcpimenta@yahoo.com.br

 

[exflaco]

Hardi a working one

 

[Hadighorbani]

thanks to exflaco

Hardi a working one

hi
thanks my friend
which one is OSC resistor in IRS900 ?
do you have any thing for IRS1500
shematic
pcb
layout
any thing
very thanks

 

[exflaco]

irs1500

oscilattor resistor 1k

 

[Hadighorbani]

i can not use .LAY files but very thanks for your helping dear friend

 

[ledsscp7]

Hadighorbani using Sprint Layout

 

[exflaco]

Its free Sprint-Layout pcb file donwload and open ,nex print layer you desire

 

[akraj]

Its free Sprint-Layout pcb file donwload and open ,nex print layer you desire

Hi Exflaco: which one is more power ful, IRS1500, IRS3000, or aud600 (Manoj amp)?

Thanks
Raj

 

[akraj]

Hi Manoj: I think my wiring is as per your diagram/instruction. Attacing a picture for better understanding, is it okay.

Thanks
Raj

Hi Manoj:

You may see from the attached picture that the volume wiring is okay as per diagram. Still no sign of luck, finally given audio input to pin 1 (by passed tl072) now the sound good, no HF noise. I changed couple of IC's, same result.

I would like to increase rail voltage, please let me know which part need to be changed and what is the threshold voltage limit of this design?

Thanks
Raj

 

[IRSound]

guys...

anyone have schematic of irs-1500d ?

Regards

 

[Hadighorbani]

Hi exflaco
i was creat and fix the parts for IRS900D
i was used IRF640N with 1K ohm OSC resistor
what is the value for IRF640n gate resistor ?
i want to use T106-2
how much the value of out put filter ?
thanks

 

[Hadighorbani]

guys...

anyone have schematic of irs-1500d ?

Regards

thanks IRSound
i need too

 

[Hadighorbani]

thanks exflaco

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

 

[exflaco]

For the diyers friends.
These 3 class d amps IRS (900-1500-3000) the same topologie and schematics
the 1500-3000 ad OCP (overcurrent protecttion) personally prefer irs1500
with biger vmos like 90n20 (90a200v) or better irfp4768(93a250v)and work fine
2ohms load.
Depend the load and the +-vcc inductor coul use 22-50uh no problem.
look the little secrets down the pcb
A smd little 100nf decoupling and use pcb 3000 only one vmos per side.
Other mistake its the 12v auxiliary better 1,5-2a (use two paralel 7812 or lm317)
one 7812 work in irs900 only

 

[Deleted member 148505]

Hi Hadighorbani,

What diode are you using for the gates? 1n4148 is sufficient.

Sorry I cannot share the layout yet for my all in one class D. Please understand.

Regards,