How to convert a 100V SMPS to a 240V one? - diyAudio
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Old 18th July 2008, 10:18 PM   #1
zBuff is offline zBuff  New Zealand
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Default How to convert a 100V SMPS to a 240V one?

I don't know anything about SMPS design, but is there anyway I can learn a rudimentary amount of knowledge to learn how to do the different voltage conversions?
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Old 19th July 2008, 07:15 AM   #2
luka is offline luka  Slovenia
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Hi

If it is ready made, it could be simple as removing one bridge wire between input rectifier and main caps, that bridge enables 110v operation, without it 220v.
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Old 20th July 2008, 08:10 PM   #3
zBuff is offline zBuff  New Zealand
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Thanks for the help, I will have to take a closer look at the circuit to see if it is possible on it.
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Old 21st July 2008, 11:00 AM   #4
jtkraj is offline jtkraj  India
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If the SMPS is built for 110V operation without and option for upgrading, its difficult to change the input voltage range.

you will have to change the MOSFET, Input filter components.

Even change the transformer windings for better efficiency.
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Old 21st July 2008, 02:31 PM   #5
golam is offline golam  Bangladesh
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jtkraj is absolutely right. In SMPS, all the parameters are tightly calculated and applied and hence changing any parameter may not give optimum result if upgrading modalities are not included. Even it may hamper proper functioning.
Thanks.
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