UCD 25 watts to 1200 watts using 2 mosfets

[andrewlebon]

CLASS D

Hello
greetings simple limiter for class d can be made from schematic

warm regards
Andrew

 

[kinter]

Ooops, i'am wrong, i had seen another datasheeet

Inviato dal mio Z00D utilizzando Tapatalk

 

[DC sound]

Irfp260 is better than irfp250.... 260 have low Qg and support more current.... why you don't use that?

Inviato dal mio Z00D utilizzando Tapatalk

IRFP250 from Harris Semiconductors..

 

[manojtm]

what load did you test with the irfp250 at that voltage and the switching frequency , also how long did the amp play .

Hi stewin,

My AUD600 still running on theater as a sub woofer, connected load 2 x 8R(650W) 18" parallel
supply rail +/-87V (90V) tested on idle full drive +/-82V (900W RMS)MOSFET Used IRFP250 Filter 33uH T157-2 both are running cool

Regards
MANOJ

 

[stewin]

Hi stewin,

My AUD600 still running on theater as a sub woofer, connected load 2 x 8R(650W) 18" parallel
supply rail +/-87V (90V) tested on idle full drive +/-82V (900W RMS)MOSFET Used IRFP250 Filter 33uH T157-2 both are running cool

Regards
MANOJ

wow very very impressive sir

 

[stewin]

hi all i have used ucd schema 400khz with irfb4227 one pair at +/-85vlts smps at 2ohms and all was o.k i wanted to use+/-110vlts can irfb 4229 handle that voltage??? please help

 

[stewin]

i have mmbt 5401/5551 and mmbt3904/4403 which ones can i use as gate drive to drive two pairs of irfb4229?????

 

[andrewlebon]

Hello pantinjin
greetings do you sell high power dclass sub woofer amp modules
2000 watt power output
warm regards
Andrew

 

[andrewlebon]

sub woofer amp modules

Hello pantinjin
greetings do you sell high power dclass sub woofer amp modules
2000 watt power output
warm regards
Andrew

 

[stewin]

please post pictures of the amps modules you are selling , your website page is not opening properly.

 

[stewin]

i have mmbt 5401/5551 and mmbt3904/4403 which ones can i use as gate drive to drive two pairs of irfb4229?????

any advice or comment any one

 

[Pafi]

any advice or comment any one

I don't recommend any of these, they are weak. BC807/817 are better, and FMMT549 is very good. (NPN can be weaker.)

 

[stewin]

Yes, BC807/817 or FMMT549's current is larger, and the driving power is greater.


TingjinPan
Ptj.123@hotmail.com
Https://shop129732915.taobao.com/

thanks guys , i wish i can get where to buy them .

any way are there any to92 good gate drivers??


nice modules pantinjm how much do they cost in us dollars smps and amp module

 

[andrewlebon]

sub amp IGBT

Yorkville sub amp

 

[stewin]

that amp is hot . with the right power supply that is 5kwts rms at 8ohms and 10kwts rms at 4ohms.

 

[NMOS]

Yorkville sub amp

Can i get rest of circuiit / schematic ?

Greetings

 

[Parag99]

My amp

 

[Parag99]

3500w/channel@2ohms

 

[stewin]

nice work para, what is the operating voltage and output fets??

 

[santosjoj]

my IRS900... sounds very awesome... good bass response

Hi DC Sound,
Do you have schematic of your irs900 look interesting to try to make my own one.

thanks
santosjoj