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JAKUB_G
02-19-2011, 12:10 PM
This I made for my friend, who wants little amp to feed his sub-woofer in the car.
The switching power supply is based on SG3524 - data-sheet circuit. Feedback is with optotransistor, thatīs why is SMPS very bump. The effectiveness of SMPS achieves something more then 80%.

Full power: 180W/8ohm
min. load impedance : 8R
input voltage for full power: 0,35V RMS
transmitted band: 30-150Hz
voltage in the output of SPS: +-55V
effectiveness: cca 80%
max off-take current: 23A@12V - 150W/8R
fuse protection: 20A auto-fuse
dimensions: 150*210*75

I hope, it will appeal to You.

studioa
02-20-2011, 07:53 AM
Congratulations, Can you transfer schematics?

Corvett
02-20-2011, 08:11 AM
Very nice car amplifier.

Is there a schematics for project and PCB will be published?


Is this only for sub woofer amplifier? can be used for good sounding amplifier?

Transformer? is it accessible to DIY like me?

Amplifier technical data please, one channel or two?

Thank you

Very well designed PCB :D

JAKUB_G
02-20-2011, 10:50 AM
This is only one channel amplifier, the crossover is not switch-able so itīs fixed. It was doing for specific loudspeaker.
T can only post schematic of SPS, because amplifier and crossover are just in my mind :D.
Yes transformer is made by me...

SaintGP
02-24-2011, 07:03 PM
hi Buddy

This is just what i was looking for.

Could you please share schematic and partslist please

Thanking you in advance

JAKUB_G
02-24-2011, 09:43 PM
Try to contact me via email or ICQ, I still havent written schematic diagram,....

Corvett
02-25-2011, 11:02 PM
Still waiting for PCB layout and transformer construction details


I also want to make one

JAKUB_G
02-26-2011, 11:08 PM
Sorry, but i have a lot of work, and i have to learn on final exams too. :(

Corvett
02-28-2011, 10:42 AM
Sorry, but i have a lot of work, and i have to learn on final exams too. :(

Can you share PCB and how to make transformer?

JAKUB_G
02-28-2011, 04:31 PM
Sure, but I havent written schematic jet. With transformer it will be little problem because I really dont remember.. I have it somewhere written down...

qmara_just
03-08-2011, 03:24 AM
o, what a pity :(

Corvett
03-24-2011, 02:10 PM
Jakub_G

I asked for schematics long time ago


Are you going to share PCB files + Schematics or not? ::SD

JAKUB_G
03-26-2011, 02:29 AM
Sorry, I wrote the reasons in one of my thread in classAB. Yes, you asked, I know, but, I have to finish one... and than do something else.

radio
09-07-2011, 06:41 PM
Hi JAKUB_G!
I and many others expected to see the PCB pattern here!
Interesting because project so please display the schematic and the PCB!
A big thank you in advance!
P.S.
Made me what your 100W High-End Amplifier and I am very happy with it!

giololucas
09-09-2011, 01:22 PM
This I made for my friend, who wants little amp to feed his sub-woofer in the car.
The switching power supply is based on SG3524 - data-sheet circuit. Feedback is with optotransistor, thatīs why is SMPS very bump. The effectiveness of SMPS achieves something more then 80%.

Full power: 180W/8ohm
min. load impedance : 8R
input voltage for full power: 0,35V RMS
transmitted band: 30-150Hz
voltage in the output of SPS: +-55V
effectiveness: cca 80%
max off-take current: 23A@12V - 150W/8R
fuse protection: 20A auto-fuse
dimensions: 150*210*75

I hope, it will appeal to You.

Great assembly!
Where did you find this case heatsink?
Regards.

JAKUB_G
09-21-2011, 01:13 AM
Hello everybody. Im back. I didnt post the PCB layout and documentation, because there was some problem with this amp. I will sove it soon, i hope. But now Im working on swiching power supply (DC/DC convereter) about 250-300VA to supply any ampiefier.

destroyer x
10-04-2011, 05:03 PM
Big sized one.

Carlos

radio
10-06-2011, 06:11 AM
Hello
Let's wait to see the 250...300VA DC/DC converter?!
Regards

DCPreamp
07-13-2012, 06:06 AM
Wow, what a beautiful project! Congratulations on a job well done!

I guess like everyone else, I'd love to see documentation of the project, supply list (like the heatsink, transformer specifics, etc.), and construction details. But, there's no hurry. I understand life is busy and unlike others, I don't expect anything. I appreciate anything you have to offer, but it's totally up to you to provide details. If you wish not to, I totally understand and won't ever push.

Thank you for everything you already posted!

isa_olcer
04-11-2013, 07:02 PM
was very nice design midget power :x:

angellina
05-01-2016, 11:36 AM
Its cool......................!!!!!!!!!






http://www.caraudiogiants.com/shop-by-category/subwoofers/cadence-s2w8d4-v2.html

silvanus
05-01-2016, 12:15 PM
where can i get it?

angellina
06-03-2016, 08:16 AM
Sorry, but i have a lot of work, and i have to learn on final exams too. :(

What xm do u have??????or what r u studying. (http://www.caraudiogiants.com/shop-by-category/amplifiers/soundstream-p4-800.html)!!!!!!!!!!!!!!!!