Power Amplifier and Power Supply Full PWM

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hien.t.nguyen

hien.t.nguyen

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Joined 2008
#1
Hi All.

I like the products amplifier high efficience,compact,friendly environment.
The new year, I have free time,I had perfect layout of Power Amplifier and Power Supply


I call them are L25De and PSL25De,it is the old circuit,nothing new,many people have made.But I layout again truly compact and simply,I want people jointly with me in this project.

L25De: 250W/8ohm,500W/4ohm(Parallel)
or 500W/4ohm,1000W/2Ohm single chanel with attachment option

I will provide full schematic,layout,partlist,...for everybody to do
There are circuit L25De
L25De Normal version:IRS2092S,IRFI4020H-117P
L25De special vesion: IRF2092S,IRFB5620PBF
 

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  • L25De sch.GIF
    L25De sch.GIF
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#8
If everybody to do, I can mounting components SMD on PCB,other components also I can buy group and share for all.

Minimium quantity I can do :20pcs single or block
Expected price about
-40$ for L25De (full)
-80$ for PSL25De(full)-1000W smps


Invite people registration list!
 
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#12
NissanSR20Man said:
Your www.ultraudio.net does not work. I want to see PDF schematics. I am really interested in such a product. I have been planning a 5ch L25D from LJM (zoe_tsang) from ebay.

Please get your website online and provide more data please
Click to expand...

Thank for your interested

I am not use that website,I am change other domain

I will provide file PDF for you at here😀

Regrads
 

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#14
Thank alot.
Data you need about THD,Capacity,Noise,frequency responce,....can found at here.
It is Reference design,My data also the same as because I only layout,not design circuit. The circuit is of manufacture component (IRS2092s,IRFI4020H-117P).

Have some different is I used better component(SMD,Tantalum cap,Elect cap Nichicon fine gold,metal film resistor,PCB two layers,...)

Regrads,
 
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#16
hien.t.nguyen said:
Thank alot.
It is Reference design,My data also the same as because I only layout,not design circuit. The circuit is of manufacture component (IRS2092s,IRFI4020H-117P).

Have some different is I used better component(SMD,Tantalum cap,Elect cap Nichicon fine gold,metal film resistor,PCB two layers,...)

Regrads,
Click to expand...

But does your layout offer same performance as IR's reference design? I could make this same circuit on a bench and be 10x more THD due to layout. I think layout + quality of materials is everything, the circuit design is proven. Someone like me could make it work, but not be high quality. You could "re-design" the layout to make it better or worse. Just wondering on this new layout design if it has been built and tested. I doubt anyone else but you have actually seen your layout, let alone tested / listened to it.

I am very eager to do a L25d design do to its simplcity and high power. It is perfect for a awesome home theatre setup if packaged and powered in a chassis correctly.
 
#17
NissanSR20Man said:
But does your layout offer same performance as IR's reference design? I could make this same circuit on a bench and be 10x more THD due to layout. I think layout + quality of materials is everything, the circuit design is proven. Someone like me could make it work, but not be high quality. You could "re-design" the layout to make it better or worse. Just wondering on this new layout design if it has been built and tested. I doubt anyone else but you have actually seen your layout, let alone tested / listened to it.

I am very eager to do a L25d design do to its simplcity and high power. It is perfect for a awesome home theatre setup if packaged and powered in a chassis correctly.
Click to expand...

Ofcouse,I was relayout after their layout so I had the opportunity to do better they by I has refer they about materials,components,layout components,length/wide of line copper,size of the PCB,copper pour for GND,copper pour for B-,...

Regrads,
 
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#19
Your SMPS is only 220V input? Can this be made for 120V 60Hz? Is the output fixed voltage or can it be adjusted? (i cannot see any adjustment means)

I can see the original k6 schematics, they include voltage switches, other features, etc... Am I missing something in your design? What are the SMPS specs?
 
#20
NissanSR20Man said:
Your SMPS is only 220V input? Can this be made for 120V 60Hz? Is the output fixed voltage or can it be adjusted? (i cannot see any adjustment means)

I can see the original k6 schematics, they include voltage switches, other features, etc... Am I missing something in your design? What are the SMPS specs?
Click to expand...

No,SMPS can selector 120/220vac.

I has fix +/-70Vdc for l25De from SMPS.

Thank alot
 
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