Transformerless Power Suppply

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  1. - 9th February 2006, 08:38 #5
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    Melanie
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    If you must... here's part of a circuit I designed (coincidentally for a fan controller for Hospitals)... total disclaimer if you die whilst playing with it - it is LIVE - you have been warned! No big dropper Resistors (R1 is a standard 0.25W), no heat disspation problems...

    The only real justification for using a circuit like this is space... The total physical real-estate a circuit like this requires is a fraction of that taken by an iron cored transformer or a switcher.
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