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Author Topic: Smps power supply design help  (Read 1781 times)
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max
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« on: June 01, 2012, 10:23:06 22:23 »

Hi friends,

Is there any software or a web site where I can find the
complete circuit design details for the SG3525 and UC38xx
series power supplies ics.

Regards
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bobcat1
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« Reply #1 on: June 02, 2012, 11:07:45 11:07 »

HI

Search TI site , probably you will find some application note or data sheet (those are very old IC)

Why not to switch to new technologies there are many new IC for power switching

All the best

Bobi
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max
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« Reply #2 on: June 02, 2012, 10:57:03 22:57 »

Hi Bobi

I want to design a supply with following specs

inupt     14 to 33v
output   15v @ 20A

input is isolated from output.

Can you suggest any solution or new chips for this task?

Regards
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« Reply #3 on: June 02, 2012, 11:53:17 23:53 »

did you not finnish this? it's just the same project, only voltages change...
http://www.sonsivri.to/forum/index.php?topic=36402.msg113208#msg113208

if it was me, doing this, on the quick and drity, I would use a pc power supply pcb, with the 110-230 ac power components removed.
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Old_but_Alive
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« Reply #4 on: June 03, 2012, 07:14:55 07:14 »

I have always found that Linear Tech are the best for switching regulator chips.
expensive, but they are good.
I havent checked TI, they are also good.

have a look at the linear tech LT1952-1

http://www.linear.com/product/LT1952

check out  their design notes etc

I hope this helps

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solutions
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« Reply #5 on: June 03, 2012, 08:08:09 08:08 »

Based on what I see as your skillset, use webench: http://www.ti.com/ww/en/analog/webench/power.shtml
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« Reply #6 on: June 03, 2012, 08:09:16 08:09 »

Hi.
You can try http://www.poweresim.com ,it's an online software for SMPS. Or LTSPICE, it's free, too.
Regards.
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