Irs2092

[nigelwright7557]

Are you not using a heatsink ?
Are the inductor wire holes big enough ?

The layout looks about as tight as you can get it.

[electroconico]

Originally Posted by nigelwright7557

Are you not using a heatsink ?
Are the inductor wire holes big enough ?

The layout looks about as tight as you can get it.

-The heatsink will be under the pcb.
-The inductor wire hole match correctly.
-I want to get a small pcb

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But what do you think about layout?? I have no experience wiring Class D amps


regards!

[luka]

This looks good, I don't think you need those diodes, above inductor... you do have them in fets if they would be needed: In fact only diodes in some app are somewhere around IRS, those you might want to add

I think you are ready to build it

[electroconico]

Originally Posted by luka

This looks good, I don't think you need those diodes, above inductor... you do have them in fets if they would be needed: In fact only diodes in some app are somewhere around IRS, those you might want to add

I think you are ready to build it

Ty luka!!

I'm working on it

where can I see your irs2092 pcb assembled??

regards!

[luka]

Originally Posted by electroconico

Ty luka!!

I'm working on it

where can I see your irs2092 pcb assembled??

regards!

I don't think I posted it yet, not that I would remember.
Status is, both channels are working, you could say I am testing it from time to time. One still need to be updated (1st one) to be able to get higher sw. freq. and I think I will add filter from one of the IR app notes, to lower some noise. And still unsure, if I would stay on current inductors or not, they are t106-2

[electroconico]

Originally Posted by luka

I don't think I posted it yet, not that I would remember.
Status is, both channels are working, you could say I am testing it from time to time. One still need to be updated (1st one) to be able to get higher sw. freq. and I think I will add filter from one of the IR app notes, to lower some noise. And still unsure, if I would stay on current inductors or not, they are t106-2

Ohh That's why i couldn't find it xD.
Thanks again!

regards!

[andrewlebon]

Hi Luka
greetings the amp you have made with IRF4227 what will be power in 4 ohms
supply 90 volts dc positive negative and from where you buy tl106-2 core
warm regards
andrew lebon

[luka]

I don't know what would be the highest voltage I would go for, +/-70 to 75v is what I have, I guess around here, this should give well over 400w into 4R, which is already far too much for home use. But I think single core won't be enough with such high voltages. But you can stack them, so you have 2 cores for one inductor.

I have luch and I didn't have to buy the cores, but for such cores you should contact
Micrometals - Iron Powder Cores
and try to see, where you could get them, maybe even as samples

[electroconico]

This is the pcb working at 80% :P ,
I have to improve the OCP,the IC enters to protect mode at high volume and select the inductor output.
No more heating. The mosfets are a bit warm.

Working at +-35vdc@450KHz , 6 ohms Load

[electroconico]

Hi

Does the IRFB4020 could be suitable to get 350W@8ohms ?

ty!

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Some pictures of my amp working,I'm getting around 150W,4ohms Load,+-37vdc ,Fosc 450KHz.