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Old 24th March 2013, 08:18 PM   #1
Cresnet is offline Cresnet  Jordan
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Default 1000W SMPS

this is my 1000W SMPS.

Any output voltage is possible, Unregulated

Works perfect.

Comments welcomed
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Old 25th March 2013, 04:36 AM   #2
hien.t.nguyen is offline hien.t.nguyen
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Quote:
Originally Posted by Cresnet View Post
this is my 1000W SMPS.

Any output voltage is possible, Unregulated

Works perfect.

Comments welcomed

Are you professional design? can you share your schematic?

regards
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Old 26th March 2013, 07:57 AM   #3
nickds1 is offline nickds1  England
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Quote:
Originally Posted by Cresnet View Post
this is my 1000W SMPS.

Any output voltage is possible, Unregulated

Works perfect.

Comments welcomed
This looks like a commercial SMPS - which one is it?
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Old 26th March 2013, 09:13 AM   #4
Cresnet is offline Cresnet  Jordan
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@nickds1

Yes, its mine
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Old 26th March 2013, 09:20 AM   #5
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It looks like a pic taken from front page of
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Old 28th March 2013, 02:06 AM   #6
nigelwright7557 is offline nigelwright7557  United Kingdom
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Many SMPS designs do away with the mains transformer and use an auxiliary winding on the SMPS transformer to provide power.
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Old 6th April 2013, 12:32 PM   #7
Cresnet is offline Cresnet  Jordan
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Quote:
Originally Posted by nigelwright7557 View Post
Many SMPS designs do away with the mains transformer and use an auxiliary winding on the SMPS transformer to provide power.
Yes, that was 4 years old project, also so many Pro SMPS manufacturers uses mains transformers, While using AUX winding wont give robust results.

No longer using that AUX transformer in the commercial version of that SMPS.
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Old 6th April 2013, 09:16 PM   #8
nigelwright7557 is offline nigelwright7557  United Kingdom
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It is considered inefficient to use a mains transformer when you have the SMPS transformer aux winding.

Havin gsaid that I have often used dropper resistors from 320VDC to get the power for the smps ic.
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