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Old 4th July 2012, 05:05 PM   #1
db! is offline db!  Canada
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Default What SMPS topology is this?

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I'm looking to build a similar SMPS for another project but I'm having some trouble identifying what identifying what topology it uses. It's not quite a flyback converter nor is it a forward converter either.

Any help would be appreciated!
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Old 4th July 2012, 05:12 PM   #2
Elvee is offline Elvee  Belgium
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It is an ordinary flyback converter, based on an auto-transformer inductor.
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Old 5th July 2012, 04:23 PM   #3
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I've seen it referred to as the "Tapped-Inductor Boost Converter". It allows a higher output/input voltage ratio than the traditional boost converter. You could also view it as a flyback converter with its output stacked on top of the input voltage that uses an autotransformer.

See for example

http://rap.rgcanseco.net/files/Docum...0Converter.pdf

Last edited by megajocke; 5th July 2012 at 04:26 PM.
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Old 6th July 2012, 02:43 AM   #4
db! is offline db!  Canada
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Thanks for the help guys!
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