6000W By IRS2092

[foxeletronic]

Friends, am I confused looking at the outline where SD and VSS of the circuit will be linked? How is he elaborated it will work perfectly and to give 6 kwrms which voltage it would be ideal for the feeding possitiva and negative?
Thank you!http://www.diyaudio.com/forums/attac...rs2092_6kw.jpg

[Eva]

There is no way in which this circuit can produce 6000W, at least not without bridging two channels with +/-90V rails on 2 ohm (sagging to +/-80V under load, which definitely requires a regulated SMPS or far more than 3000uF per rail).

This involves 80A peak and switching such a high current reliably is not for beginners, not to mention that a schematic without a working PCB layout (or the experience required to do it) is useless.

I have reasons to think that this schematic is not based in any real working thing, and I say this from the point of view of someone that has a few working prototypes capable of 5000W bursts on 2 ohms on her workbench.

Why supply capacitors are 200V? They should be 100V. 4.7 ohm is too low as a turn on gate resistor for that MOSFET and too high as an efficient turn off resistor. Big thru-hole films on supply rails are useless, they result in resonances. Etc...

[jleaman]

Originally Posted by Eva

There is no way in which this circuit can produce 6000W, at least not without bridging two channels with +/-90V rails on 2 ohm (sagging to +/-80V under load, which definitely requires a regulated SMPS or far more than 3000uF per rail).

This involves 80A peak and switching such a high current reliably is not for beginners, not to mention that a schematic without a working PCB layout (or the experience required to do it) is useless.

I have reasons to think that this schematic is not based in any real working thing, and I say this from the point of view of someone that has a few working prototypes capable of 5000W bursts on 2 ohms on her workbench.

Why supply capacitors are 200V? They should be 100V. 4.7 ohm is too low as a turn on gate resistor for that MOSFET and too high as an efficient turn off resistor. Big thru-hole films on supply rails are useless, they result in resonances. Etc...

I wouldent really worry about this thread, the original poster hasn't even posted after the first post.! GooD info tho

[wg_ski]

Originally Posted by jleaman

I wouldent really worry about this thread, the original poster hasn't even posted after the first post.! GooD info tho

Good info is exactly right - even if the OP decides it's not worth the trouble. Some of us 'outsiders' are still interested in doing this sort of thing. Out of the confusion comes enough information to learn what topologies work, what the switch timing requirements are and how to model everything. And I'm not in a big hurry to throw something together without adequate understanding (and watch it explode).

PCB layout is the least of my worries - I already design multi-GHz high efficiency (including switch mode) MMIC power amplifiers for a living so I know a thing or two about distributed networks.

[khalsa]

hi guys i want pcb desin this amp KhalsaAudioCenter@yahoo.com

[foxeletronic]

Hello friend, would be very thankful to receive PCB if possible, my electronic address is foxeletronic@ibest.com.br.
Thankful!

[pawan borkute]

dear sir
i want pcb desin this amp irs2092_6kw.my mail id pb_sound@rediff.com please send this address



thanks & regard

[DJ_DUMY]

hi
I designed a PCB for this amplifier but I replace transistors with two driver circuits if you have something better please send to me at gabriel_seku@yahoo.com

[foxeletronic]

Hello friend, which is the component driver, since it doesn't consist the name and I number, he/she also has capacitor and diode without reference. Thankful!

[Eva]

Originally Posted by DJ_DUMY

hi
I designed a PCB for this amplifier but I replace transistors with two driver circuits if you have something better please send to me at gabriel_seku@yahoo.com

How much current do you expect to obtain from this layout before fets and drivers start to fail for "obscure reasons"?

You have done a class AB layout with high parasitics.