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Old 9th January 2008, 04:03 AM   #1
christine zhou is offline christine zhou  Singapore
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Default design dc-dc converter

Hi

I need to design a step down dc-dc converter which dc input range is between 160vdc or 320vdc. The output should get 48Vdc, 12.5mA. Please share with me if you have any block diagram and pls give me some idea how to design.

I am looking forward a reply from you soon.

Thanks and Rgds,
christine
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Old 9th January 2008, 01:10 PM   #2
flg is offline flg  United States
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So, isolated or non-isolated? Maybe you would like a Flyback, or just a buck? 12mA? Hmmm...
Actually, I don't see to many Pass followers doing smps types of projects. I don't mean to chase you away but, maybe you would be happier with the response from: http://www.diyaudio.com/forums/forum...?s=&forumid=67
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Old 10th January 2008, 09:41 AM   #3
christine zhou is offline christine zhou  Singapore
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Thanks flg...fly back can get output power upto 200W and buck converter even less than that. I need to get output power is 600W so I am thinking of using half-bridge converter.




Anyone who got block diagram to share for dc-dc step down converter which input is 160V and output is 48V,12.5A and 600W?

PLEASE HELP!!!!!!!
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Old 10th January 2008, 05:10 PM   #4
luka is offline luka  Slovenia
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design dc-dc converter
Hi

did you searched at all??
Half bridge , read all
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Old 10th January 2008, 11:47 PM   #5
flg is offline flg  United States
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Sure. Pass stuff is cool but I'm not waiting to see an Audio Application of SMPs from him...
12A? Ohhhhh. Some simple little chip like an ON Semi 1050 Series or Tiny Switch would do 12mA but, 12A is a little different...
luka is right. Do a search. there should be an abundance of info to get you on your way. You might look out in the rest of the web for TelCom stuff too
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