Power Amplifier and Power Supply Full PWM

[hien.t.nguyen]

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

 

[hien.t.nguyen]

Part list L25De

 

[hien.t.nguyen]

PCB stereo size: W100mm x L93mm
Heatsink: 100mm x 15mm x 40mm

 

[hien.t.nguyen]

Special version use two mosfet IRFB5620PBR replace for IRFI4020H-117P

PCB of 2 IRFB5620PBF size: 25mm x 9.5mm

 

[hien.t.nguyen]

SMPS is edition of K6 power supply relayout

Include main PCB(power) and sub PCB(PWM)

 

[hien.t.nguyen]

Sub PCB (PWM) use SG3525,LM258 All is SMD type

PCB size very small: 28x40mm

 

[hien.t.nguyen]

Main PCB size: 100x200mm

 

[hien.t.nguyen]

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!

 

[hien.t.nguyen]

Power linear for those do not like SMPS

PCB size: 100x100mm (= size L25De)

 

[NissanSR20Man]

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

 

[hien.t.nguyen]

Sch and Part list Power linear

about 30$ for PL full

 

[hien.t.nguyen]

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

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

 

[NissanSR20Man]

Thanks for the PDF

Looks good. Lots of protections features! Keep testing and provide test data. I am interested. Keep posting information, I cannot get enough data.

 

[hien.t.nguyen]

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,

 

[hien.t.nguyen]

Data at here


www.inductor.com/irf/iraudamp7d.pdf

 

[NissanSR20Man]

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,

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.

 

[hien.t.nguyen]

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.

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,

 

[hien.t.nguyen]

I received a quotation for L25De full
it is 2 chanel x 250w/8 ohm: 42.5$
If use IRFB5620 is add about 8$

 

[NissanSR20Man]

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?

 

[hien.t.nguyen]

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?

No,SMPS can selector 120/220vac.

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

Thank alot