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  1. #1
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    Leakage inductance of isolated offline half-bridge transformer

    Hi,

    what kind of level of leakage inductance could i expect to get with a standard wound half-bridge transformer for 350W offline half bridge?

    -Would you expect more leakage with a flyback transformer?

    I will have the primary sandwiching the two secondaries (+-50V)

    vac in = 9-265vac

    its an ETD44 smps ferrite core, with AL = 1024
    Last edited by grizedale; 3rd August 2011 at 13:26. Reason: missing info

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  2. #2
    Advanced Member level 3
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    Re: Leakage inductance of isolated offline half-bridge transformer

    Leakage below 2uH is good, below 1uH is very good, 2-4uH is average, above 4uH is getting poor...



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