0-15V 0-120A adjustable PSU attempt with average current control. - Page 8 - diyAudio
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Old 10th July 2009, 08:27 AM   #71
luka is offline luka  Slovenia
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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
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Old 17th July 2009, 08:41 PM   #72
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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
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Old 17th July 2009, 09:02 PM   #73
luka is offline luka  Slovenia
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Care to send me any of those schematics?
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Old 19th July 2009, 08:09 PM   #74
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Lightbulb 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!
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Old 20th July 2009, 07:42 AM   #75
Orcino is offline Orcino  Brazil
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Hi, please send me the sch 1kw and 3kw.

sorry for my english.

Thanks

Orcino

orcinoborges@gmail.com
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Old 20th July 2009, 02:16 PM   #76
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Hi DCPreamp!

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

djwerley@ bol.com.br.

Thanks!
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Old 11th August 2009, 05:18 PM   #77
luka is offline luka  Slovenia
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Default 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?
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Old 19th April 2010, 01:09 PM   #78
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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
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Last edited by Reactance; 19th April 2010 at 01:17 PM.
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Old 5th September 2010, 12:57 PM   #79
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Quote:
Originally Posted by luka View Post
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.
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Old 5th September 2010, 04:03 PM   #80
luka is offline luka  Slovenia
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they are not my file, I just posted the links of where they were
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