UCD 25 watts to 1200 watts using 2 mosfets

[Aucosticraft]

Hi
greetings ugly wiring but its WORKING many many THANKS to CPS DIMONIS
and NORAZMI for their valuable help
warm regards
andrew lebon

Hello,

Have you tried cakeamp too?

 

[stewin]

hi guys is this fet good with this amp irfb4229 at +/- 90vlts at 2ohms ?

 

[manojtm]

Hi all
tested my PCB(3x IRFP240). Its working good.some modification made i will post my schematic soon

 

[stewin]

hi guys is this fet good with this amp irfb4229 at +/- 90vlts at 2ohms ?

 

[Dimonis]

Do you have any alternative or similar to compare with ?😀
I think no , so use 'em , they'll do.

 

[stewin]

they are the only good high voltage fets i have found so far than irfb23n20

 

[Dimonis]

stewin,
23n20 has the breakdown voltage of 200V , they aren't good for +\-90V application .
So as the other 200V mosfets !
4229 has 250V breakdown .

 

[don2007ksa]

Hi Manojtm i used 600 khz oscillator based on your schematic my IR2110 IS DEAD,my IRF240 also dead,hope you can post your schematic with modification,thank's.

 

[stewin]

stewin,
23n20 has the breakdown voltage of 200V , they aren't good for +\-90V application .
So as the other 200V mosfets !
4229 has 250V breakdown .

thanks dimonis, now i've got a reliable D mosfet(irfb4229) to use i hope it wont heat up like crazy as the irfb23n20
😀😀😀

 

[don2007ksa]

Hi Stewin what schematic you're using?can you share it?thank's.

 

[stewin]

Hi Stewin what schematic you're using?can you share it?thank's.

all here

diysmps

 

[thwcs]

all here

diysmps

Hi Stewin, can you post it to here? thank you!

 

[Dimonis]

can you post it to here? thank you!

I think this thread is devoted to amps based on LM311+IR2110 , and not to discreet 😛 . Sorry thwcs.🙁

 

[don2007ksa]

I found it Stewin,thank's hope i can make it cause there's a lot of modification hope to hear more from you,,,,,,

 

[stewin]

still developing it with nozrami and others . and pcb and schema are all there very powerful and uses discreet components and irfp250n.

diysmps

 

[classd2008]

Hi Manojtm i used 600 khz oscillator based on your schematic my IR2110 IS DEAD,my IRF240 also dead,hope you can post your schematic with modification,thank's.

Wowww... 600Khz? Manojtm used 125 Khz.... Using NE555 square oscilator and converted do triangle.

 

[manojtm]

Hi All

tested my design its AMAZING POWER!!!!!!!!!
no noise Clear sound and good power
when i check speaker line without signal it showing -16mV this problem i want to clear ....

 

[luka]

what problem? 16mV is totaly ok

 

[pergo]

Hi All

tested my design its AMAZING POWER!!!!!!!!!
no noise Clear sound and good power
when i check speaker line without signal it showing -16mV this problem i want to clear ....

which schematic are you using?

 

[manojtm]

hi luka
its (-16mV) not 16mV