UCD 25 watts to 1200 watts using 2 mosfets

[masood251]

d class amplifier

dear sir plz help me a i assemble it .there is no souund at out put and ic cd4049 becomes hot.thank regards
masood

 

[luizcpimenta]

dear sir plz help me a i assemble it .there is no souund at out put and ic cd4049 becomes hot.thank regards
masood

Good Morning. Do you have the wiring diagram?

 

[masood251]

Good Morning. Do you have the wiring diagram?

I have only pcb upper mask and i also want its schematics. Thanks

 

[luizcpimenta]

I have only pcb upper mask and i also want its schematics. Thanks

Ok, thanks.

 

[kees52]

I get quite low distortions in these demo test version in spice.

 

[masood251]

hi manoj
plz.help me to built this amplifier as i have assembeled but not working.thanks

 

[stewin]

hi manoj
plz.help me to built this amplifier as i have assembeled but not working.thanks

hi masood please post the pcb files and photos .

 

[Dinithm]

hi manoj
plz.help me to built this amplifier as i have assembeled but not working.thanks

need more details , before treatment

(because this is complex circuit system with 6 different circuits + protection logic)

give you some tips

1.do not apply more than 90V-0-90V (problem of 2n5401 and cd4049)
2.limit the switching frequncy to 120khz(BD139 and BD150 slow)
4.change 100ohms (mosfet bias resistor) to 27ohms (dead time too long)
5.chand that 10W idiot resistors use only 2W 5.6K (90*90/8.2k=0.98W)
6.add 10uf(low ESR) to IR2110 bootstrap (to bias 3 mosfets + 3 100ohms +gate drivers)

-----------------------------------------------------------------
.....use 2 pair of mosfets and remove gate transistors connect directly Ir2110 driver drive 2+2 irf4227 easyly ... set switching frquncy 180khz
output inductor 40uh
-------------------------------------------------------------------

 

[masood251]

need more details , before treatment

(because this is complex circuit system with 6 different circuits + protection logic)

give you some tips

1.do not apply more than 90V-0-90V (problem of 2n5401 and cd4049)
2.limit the switching frequncy to 120khz(BD139 and BD150 slow)
4.change 100ohms (mosfet bias resistor) to 27ohms (dead time too long)
5.chand that 10W idiot resistors use only 2W 5.6K (90*90/8.2k=0.98W)
6.add 10uf(low ESR) to IR2110 bootstrap (to bias 3 mosfets + 3 100ohms +gate drivers)

-----------------------------------------------------------------
.....use 2 pair of mosfets and remove gate transistors connect directly Ir2110 driver drive 2+2 irf4227 easyly ... set switching frquncy 180khz
output inductor 40uh
-------------------------------------------------------------------

thanks dear
i will try .thanks

 

[stewin]

.....use 2 pair of mosfets and remove gate transistors connect directly Ir2110 driver drive 2+2 irf4227 easyly ... set switching frquncy 180khz
output inductor 40uh
-------------------------------------------------------------------

is it safe or advisable to do that really ?? the ir2110 will heat up greatly.

 

[khalsa]

sd1500

sd1500 class d amp

 

[masood251]

sd1500 class d amp

Dear sir
From where you get this sd1500 PDF.thanks

 

[stewin]

sd1500 class d amp

thanks khalsa , have you tried the amp with success??

 

[khalsa]

yes sir but semi complete i try to complete soon

 

[stewin]

yes sir but semi complete i try to complete soon

hi sir , cool to hear that photos please post sir

 

[khalsa]

with some component

 

[masood251]

sd1500 top

hi sir , cool to hear that photos please post sir

it is here

 

[stewin]

it is here

hi sir masood i mean your build photos.

 

[masood251]

Hi stewin
I assemble but not tested.I want its schematics (wiring diagram) thanks

 

[masood251]

hello sir
can i put 0.1 micro farad between pin no.5 and pin no.6 of ic ir2110 because there is not space at my pcb.thanks masood