UCD 25 watts to 1200 watts using 2 mosfets

[stewin]

Hello
greetings 1200 WATT SMPS made by sir irvynejay its still under testing
many THANKS to SIR detex audio and nano for helping us all the way
warm regards
andrew lebon

do the fets get hot or they warm when loaded with like 600wts load

 

[andrewlebon]

Hi Stewin
greetings yes fets get warm heat sink to be attached on fets and diodes
SMPS we have to learn to make 3kw everyone making 3kw per channel how do you provide the power so SMPS is the future
warm regards
andrew lebon

 

[manojtm]

HI ALL,
My new class d design it will work very cool on +80v -80v @250KHz full band
i connected 3x 8 Ohm speaker parallel without heat-sink

Regards
MANOJ

 

[andrewlebon]

Hi Pafi
greetings no reply
warm regards
andrew lebon

 

[don2007ksa]

IRS2000D

IRS2000D

the problem output coil heat's up,output dc -6.3 m.v,freq 200khz -/+ 90vdc,wont oscillate with out load,clear audio when it run's,clear sine wave output,any solution?

 

[CPX]

What permeability core do you use?

 

[exflaco]

Manojtm only block diagram in a diy place? better nothing.

 

[exflaco]

Yelow and white cores dont work fine at 200khz better a EE core with 1mm interior gap

 

[don2007ksa]

i used a yellow color from PC power supply and i double it up with 32 turns of 1.2mm,sound 's good,hope can find an EE core here is KSA.

 

[andrewlebon]

SENDUST CORES

USE SENDUST CORES OR EE CORES with 2 to 3mm gap the core material is
vital component in d class
warm regards
andrew lebon

 

[andrewlebon]

detex audio 1500 watts

detex pcb
warm regards
andrew lebon

 

[andrewlebon]

mosfet used is FDA69N25 from FAIRCHILD

 

[dudaindc]

detex pcb
warm regards
andrew lebon

FYI - It seems that some of the tracks (under the IC's) got "masked" by the white background... 🙁

 

[exflaco]

Best diyer place

Your request

 

[stewin]

HI ALL,
My new class d design it will work very cool on +80v -80v @250KHz full band
i connected 3x 8 Ohm speaker parallel without heat-sink

Regards
MANOJ

pls post a schema are the outputs irfp250?

 

[dudaindc]

Your request

Thanks! 😉

 

[andrewlebon]

pcb 1500 watts detex audio

detex pcb

 

[stewin]

hi andrew and exflaco can i use irfp250n/260n with pcb 1500 watts detex audio at +/- 75vlts dc with a 4ohms woofer

 

[andrewlebon]

yes YOU CAN USE IRF250N with 70+/- supply

 

[stewin]

wow thanks. pls post schema if available can irfp260n work also at that voltage with that impedance? . thanking you in advance.