6000W By IRS2092

[foxeletronic]

schematic

 

[foxeletronic]

http://www.diyaudio.com/forums/attachments/class-d/145286d1257091610-6000w-irs2092-irs2092_6kw.jpg

 

[Valenca]

It work well ???

 

[foxeletronic]

I dunno, I have only scheme.

 

[foxeletronic]

Someone has put up this amplifier, and worked or is lost in time assemble it?

 

[Valenca]

It's a good question...

 

[pergo]

only 3 pairs of IRFB4227 for 6kW

 

[Valenca]

Pergo, Perhaps in bridge.... né ?

 

[Alexontherocks]

I would say 600w is a closer estimate.....reference design is for a single pair of devices.


6kw seems beyond specs...

 

[pergo]

in bridged mode...oh yess

 

[Valenca]

Any takers in the assembly?

 

[Valenca]

I do not know, a class-D amp with 90% efficiency and voltage 85v +85 v only with 600W of power ... Hmmm, I think it gives a little more than that!

 

[lithoc]

I do not know, a class-D amp with 90% efficiency and voltage 85v +85 v only with 600W of power ... Hmmm, I think it gives a little more than that!

Let's do simple math,

1 x 4227 = 500w

From the schematic , it uses 6

6 x 500w = 3000w

Bridge 2 x 2092

2 x 3000w = 6000w


...... come back to reality .....

 

[stewin]

before even going to the reality can those bjt really drive the gate of those 4227 safely at full power? and what is the switching frequency?

 

[Valenca]

Stewin, about 200Khz i think...

 

[stewin]

i have the pdf version of the schema . but can those bjt's drive the output fets safely at full power?

 

[stewin]

hey guys i've found it's posible to drive output power fets with bjt it is called tontem pole. thanks to ir company ir amp9 is similar to what this thread is all about

but produces 1.7kwt instead of the 6kwt as in this thread

http://www.irf.com/technical-info/refdesigns/iraudamp9.pdf

 

[nigelwright7557]

hey guys i've found it's posible to drive output power fets with bjt it is called tontem pole. thanks to ir company ir amp9 is similar to what this thread is all about

but produces 1.7kwt instead of the 6kwt as in this thread

http://www.irf.com/technical-info/refdesigns/iraudamp9.pdf

I have found one pair of 4227 will give 500watts and two pairs 1000watts.
So their 3 pairs at 1kw7 sounds right.

 

[Valenca]

Someone would have the PCB of this circuit?

 

[Valenca]

Stewin, it's a good circuit, you have the PCB of this circuit?