design dc-dc converter

christine zhou · 9th January 2008, 04:03 AM

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

flg · 9th January 2008, 01:10 PM

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

christine zhou · 10th January 2008, 09:41 AM

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!!!!!!!

luka · 10th January 2008, 05:10 PM

Hi

did you searched at all??
Half bridge , read all

flg · 10th January 2008, 11:47 PM

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

9th January 2008, 04:03 AM	#1
christine zhou diyAudio Member Join Date: Jan 2008	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

10th January 2008, 05:10 PM	#4
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	Hi did you searched at all?? Half bridge , read all __________________ home page @ http://www.classdaudio.tk/ @ 24/7 all year long I FEEL SLOVENIA

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9th January 2008, 01:10 PM	#2
flg diyAudio Member Join Date: Jul 2005 Location: North East	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

10th January 2008, 09:41 AM	#3
christine zhou diyAudio Member Join Date: Jan 2008	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!!!!!!!

10th January 2008, 11:47 PM	#5
flg diyAudio Member Join Date: Jul 2005 Location: North East	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