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D4K5 DIY Class D Amplifier 2000W ( Gerber Files) - working PCB or fake ?
D4K5 DIY Class D Amplifier 2000W ( Gerber Files) - working PCB or fake ?
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Old 20th October 2019, 12:27 PM   #1
NMOS is offline NMOS  Germany
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Default D4K5 DIY Class D Amplifier 2000W ( Gerber Files) - working PCB or fake ?

Hello Friends


D4K5 Class D amplifier (about 2000W 4 Ohm)

Fake or working PCB and working circuit ?

Does someebody here build this D4K5 class D amplifier ?


I have download from elcircuit.com schematic, Gerber Files, Youtube Video

High Power Class-D Amplifier D4K5 - Electronic Circuit


This amp design have 3 Mosfets and should work from +/- 30 to 100 V Rail

in Youtube Video everything look fine but some people writing in Blog PCB dont work, you will waste money
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Old 20th October 2019, 12:28 PM   #2
NMOS is offline NMOS  Germany
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Attachment schematic
Attached Images
File Type: jpg d4k5 HIGH RESOLUTION.jpg (466.3 KB, 153 views)
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Old 20th October 2019, 02:51 PM   #3
andrewlebon is offline andrewlebon  India
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Hello Nmos
greetings they will all work if tweaked a little for better performance
warm regards
Andrew
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"It's Better to try and fail than to never know and always wonder"
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Old 20th October 2019, 05:47 PM   #4
NMOS is offline NMOS  Germany
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Quote:
Originally Posted by andrewlebon View Post
Hello Nmos
greetings they will all work if tweaked a little for better performance
warm regards
Andrew

What kind of improvements ?


I know only this improvements from DIY Member Kartino,....

1. to add 2 schottky diodes in original design look picture.....There are 4 diodes now arround the inductor.

Whatever energy generated in the coil, it cannot be more than voltage supply as the diodes act like pipe. Any generated voltage more than voltage supply will be drained by that diodes to supply cap. Thats why this design is very stable. Even you can play connect or disconnect, short, whatever, on and off power without smoke.

2. Core 1xMS157060, 19 turns for 90Vdc or 2x157060 14 turns for a 130Vdc supply.

3. change resistor calue to 2 x 4K7 at 2n5401 and add 5V zehner and 22uf Electrolyt Kondensator to Ground

4. output is 700W 8 ohms / 1500W 4 ohms with a 90Vdc 20A supply. The output can be raised 1200W 8 ohms / 2400W 4 ohms with a supply of 130Vdc

5. Mosfet IRFP4227 1 set for 90Vdc supply. IRFP4229 / IRFP4332 / IRFP4242 / IRFP4768 / IXTQ76N25 to supply 120Vdc 1 set. Other mosfets are not recommended.

look pictures

can you share important information what I dont know ?
Attached Images
File Type: jpg improve 1 4K7.jpg (35.6 KB, 129 views)
File Type: jpg improve 3 resistor Gate 4k7.jpg (41.4 KB, 119 views)
File Type: jpg improve 2 diodes.jpg (48.7 KB, 117 views)
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Old 20th October 2019, 05:54 PM   #5
NMOS is offline NMOS  Germany
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Quote:
Originally Posted by NMOS View Post
What kind of improvements ?


I know only this improvements from DIY Member Kartino,....

1. to add 2 schottky diodes in original design look picture.....There are 4 diodes now arround the inductor.

Whatever energy generated in the coil, it cannot be more than voltage supply as the diodes act like pipe. Any generated voltage more than voltage supply will be drained by that diodes to supply cap. Thats why this design is very stable. Even you can play connect or disconnect, short, whatever, on and off power without smoke.

2. Core 1xMS157060, 19 turns for 90Vdc or 2x157060 14 turns for a 130Vdc supply.

3. change resistor calue to 2 x 4K7 at 2n5401 and add 5V zehner and 22uf Electrolyt Kondensator to Ground

4. output is 700W 8 ohms / 1500W 4 ohms with a 90Vdc 20A supply. The output can be raised 1200W 8 ohms / 2400W 4 ohms with a supply of 130Vdc

5. Mosfet IRFP4227 1 set for 90Vdc supply. IRFP4229 / IRFP4332 / IRFP4242 / IRFP4768 / IXTQ76N25 to supply 120Vdc 1 set. Other mosfets are not recommended.

look pictures

can you share important information what I dont know ?

look pic
Attached Images
File Type: jpg w.jpg (26.4 KB, 124 views)
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Old 22nd October 2019, 04:01 AM   #6
Turbowatch2 is offline Turbowatch2  Germany
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If it really works, you will find a finished PCB at Alibaba around x-mas.

Maybe the inventor just published it to let some far east "electronics engineers" finish it?
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Old 22nd October 2019, 05:52 AM   #7
NMOS is offline NMOS  Germany
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Quote:
Originally Posted by Turbowatch2 View Post
If it really works, you will find a finished PCB at Alibaba around x-mas.

Maybe the inventor just published it to let some far east "electronics engineers" finish it?

Ich denke Indonesien ist da weiter.....

Same Amp 1500 Watt with 1 pair Mosfet


Here for Rp348.500 equal. to 25 EUR / 27 USD

from Bukalapak Indonesia Online selling platform

Jual Power Class D 1500watt di lapak HK audio audimension



Class D 4k5 same amp like from elcircuit but finished already

with 3 Mosfets about 45 EUR / 50 USD

Jual clas d 4k5 di lapak Muh Rozin muh_kharozin


POWER CLASS D FULLBRIDGE 10K 4SET FINAL 8PCS MOSFET Rp850.000

about 80 EUR / 90 USD ready assembled from Indonesia

Jual POWER CLASS TD FULLBRIDGE 10K 4SET FINAL 8PCS MOSFET di lapak NSTR ELECTRONIC nusantararecord
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Old 22nd October 2019, 05:55 AM   #8
NMOS is offline NMOS  Germany
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I think

To buy parts and pcb for DIY assemble is expensiver compare finished asselbled product from Indonesia
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Old 22nd October 2019, 08:04 AM   #9
Turbowatch2 is offline Turbowatch2  Germany
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My political correctness advises me to leave this thread.

Bye!
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Old 22nd October 2019, 09:25 AM   #10
NMOS is offline NMOS  Germany
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Quote:
Originally Posted by Turbowatch2 View Post
My political correctness advises me to leave this thread.

Bye!
Hi we come from the same country...

what do you mean with political correctness ?

I dont understand you ?

"because it comes from Indonesia, political correctness advises me to leave this thread ?"

we talk about electronic and you about political correctness ?

When you go in our German local big Multimedia Store like Mediamarkt and Saturn (most of the EU Countries have this big stores too)

and look today carton of electronic product

"NOW much more products "Made in Indonesia" before it was up to 99% Made in China"

Have a look in Media Markt and Saturn


some international brands manufacatured in Indonesia long time already ...Panasonic, Sony car radio
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