0-15V 0-120A adjustable PSU attempt with average current control. - Page 8

luka · 10th July 2009, 08:27 AM

yea, I would like to see this project to come alive again too
12-15v are always needed with some high current

Hope you'll get around some time and redo it

DCPreamp · 17th July 2009, 08:41 PM

Wow Eva. First, let me compliment you on all your work. You're definitely a true DIY'er, and not one of those "all 'wisdom,' no projects" kind of guys.

Let me ask you, any reason you didn't use 40V, 150A (or more) Schottky diodes for secondary rectification?

Also, any reason you didn't use a COTS (commercial, off-the-shelf) 150A current shunt within the output loop to monitor current?

Not to impugn your work, but it's what Sorensen/Elgar does on their DCS-series 1KW & 3KW commercial switching supplies. I have a few of their 1KW models (thank you eBay!), plus the schematics, and their designs are elegantly simple, yet robust.

When I worked in professional car audio, in order to test our 800W monster audio amp, we used 3 Pioneer Magnetics 5V, 300A switching power supplies connected in series. Each was trimmed down to 4.6V to give us 13.8VDC to simulate a car's electrical system. Cool stuff!

Thanks,
Paul

luka · 17th July 2009, 09:02 PM

Care to send me any of those schematics?

DCPreamp · 19th July 2009, 08:09 PM

If anyone is else is interested in the schematics, I have zipped them up into 2 x 900KB files and can email them out. Or, if anyone has their own site and wishes to post them for non-commercial, DIYAudio use, I can email them to you.

By the way, these schematics were given to me for free by Sorensen because I own some of their products and requested them. I post them just for general knowledge and educational purposes, and not for any form of copyright infringement. Also, don't attempt to build an off-line, high-power SMPS without a lot of knowledge of safety, device selection, and regulatory considerations. A cool power supply project is not worth dieing over!

Orcino · 20th July 2009, 07:42 AM

Hi, please send me the sch 1kw and 3kw.

sorry for my english.

Thanks

Orcino

orcinoborges@gmail.com

djwerley · 20th July 2009, 02:16 PM

Hi DCPreamp!

I am interested in the projects and schematics. Please it sends for my email:

djwerley@ bol.com.br.

Thanks!

luka · 11th August 2009, 05:18 PM

1st page:

http://eva.eslamejor.com/buckbrd0.gif
http://eva.eslamejor.com/buckbrd1.gif

This are 2 pictures, files missing from server..

Next post...

http://img311.imageshack.us/img311/9072/100a3c9ys.gif
http://img311.imageshack.us/img311/7682/100a3d8qs.gif
http://img311.imageshack.us/img311/2371/100a3e8rb.gif

This 2 could be hard to know what were they...only if you do

So do you think, you will redo this project, do it diffrently or do it at all?

Reactance · 01:17 PM

Hi eva this is a very interesting project in terms of educational value, can someone please updated this thread and keep the circuit diagrams, images ect... archived please im following professional guidelines and practices this is a rather good thread to learn from. PCB layouts are nicely done with pride

Thanks

6899518 · 5th September 2010, 12:57 PM

Quote:

Originally Posted by luka

1st page:

http://eva.eslamejor.com/buckbrd0.gif
http://eva.eslamejor.com/buckbrd1.gif

This are 2 pictures, files missing from server..

Next post...

http://img311.imageshack.us/img311/9072/100a3c9ys.gif
http://img311.imageshack.us/img311/7682/100a3d8qs.gif
http://img311.imageshack.us/img311/2371/100a3e8rb.gif

This 2 could be hard to know what were they...only if you do

So do you think, you will redo this project, do it diffrently or do it at all?

Hello Luka, please post again the files, they are missing... sorry my english.
Thank you.

luka · 5th September 2010, 04:03 PM

they are not my file, I just posted the links of where they were

10th July 2009, 08:27 AM	#71
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	yea, I would like to see this project to come alive again too 12-15v are always needed with some high current Hope you'll get around some time and redo it __________________ home page @ http://www.classdaudio.co.cc @ 24/7 all year long I FEEL SLOVENIA

17th July 2009, 08:41 PM	#72
DCPreamp diyAudio Member Join Date: Jun 2005 Location: Sacramento, CA	Wow Eva. First, let me compliment you on all your work. You're definitely a true DIY'er, and not one of those "all 'wisdom,' no projects" kind of guys. Let me ask you, any reason you didn't use 40V, 150A (or more) Schottky diodes for secondary rectification? Also, any reason you didn't use a COTS (commercial, off-the-shelf) 150A current shunt within the output loop to monitor current? Not to impugn your work, but it's what Sorensen/Elgar does on their DCS-series 1KW & 3KW commercial switching supplies. I have a few of their 1KW models (thank you eBay!), plus the schematics, and their designs are elegantly simple, yet robust. When I worked in professional car audio, in order to test our 800W monster audio amp, we used 3 Pioneer Magnetics 5V, 300A switching power supplies connected in series. Each was trimmed down to 4.6V to give us 13.8VDC to simulate a car's electrical system. Cool stuff! Thanks, Paul __________________ "Believers cling to the myth despite the evidence, reinterpret the myth to suit the evidence, or lie about the evidence to support the myth." "To err is human; to blame errors on external factors is even more so."

17th July 2009, 09:02 PM	#73
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	Care to send me any of those schematics? __________________ home page @ http://www.classdaudio.co.cc @ 24/7 all year long I FEEL SLOVENIA

19th July 2009, 08:09 PM	#74
DCPreamp diyAudio Member Join Date: Jun 2005 Location: Sacramento, CA	Sorensen 1KW & 3KW Schematics If anyone is else is interested in the schematics, I have zipped them up into 2 x 900KB files and can email them out. Or, if anyone has their own site and wishes to post them for non-commercial, DIYAudio use, I can email them to you. By the way, these schematics were given to me for free by Sorensen because I own some of their products and requested them. I post them just for general knowledge and educational purposes, and not for any form of copyright infringement. Also, don't attempt to build an off-line, high-power SMPS without a lot of knowledge of safety, device selection, and regulatory considerations. A cool power supply project is not worth dieing over! __________________ "Believers cling to the myth despite the evidence, reinterpret the myth to suit the evidence, or lie about the evidence to support the myth." "To err is human; to blame errors on external factors is even more so."

11th August 2009, 05:18 PM	#77
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	Pictures missing, links... 1st page: http://eva.eslamejor.com/buckbrd0.gif http://eva.eslamejor.com/buckbrd1.gif This are 2 pictures, files missing from server.. Next post... http://img311.imageshack.us/img311/9072/100a3c9ys.gif http://img311.imageshack.us/img311/7682/100a3d8qs.gif http://img311.imageshack.us/img311/2371/100a3e8rb.gif This 2 could be hard to know what were they...only if you do So do you think, you will redo this project, do it diffrently or do it at all? __________________ home page @ http://www.classdaudio.co.cc @ 24/7 all year long I FEEL SLOVENIA


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20th July 2009, 07:42 AM	#75
Orcino diyAudio Member Join Date: Jul 2009	Hi, please send me the sch 1kw and 3kw. sorry for my english. Thanks Orcino orcinoborges@gmail.com

20th July 2009, 02:16 PM	#76
djwerley diyAudio Member Join Date: Jan 2009	Hi DCPreamp! I am interested in the projects and schematics. Please it sends for my email: djwerley@ bol.com.br. Thanks!

19th April 2010, 01:09 PM	#78
Reactance diyAudio Member Join Date: Jun 2005 Location: Cape Town	Hi eva this is a very interesting project in terms of educational value, can someone please updated this thread and keep the circuit diagrams, images ect... archived please im following professional guidelines and practices this is a rather good thread to learn from. PCB layouts are nicely done with pride Thanks __________________ There’s nothing worse than the smell of burned output transistors!! Last edited by Reactance; 19th April 2010 at 01:17 PM.

5th September 2010, 04:03 PM	#80
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	they are not my file, I just posted the links of where they were __________________ home page @ http://www.classdaudio.co.cc @ 24/7 all year long I FEEL SLOVENIA

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