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Mains harmonics testing of 150W offline LED drivers

Discussion in 'General Electronics Chat' started by Flyback, Jul 2, 2017.

  1. Flyback

    Flyback Well-Known Member

    Jan 5, 2007
    I appreciate that for Europe/UK/USA, the regulatory bodies test SMPS’s for mains harmonics at 10V intervals between 195VAC and 265VAC in UK, and 100VAC to 140VAC in the States……But is it only the result at 240VAC (120VAC in USA) that determines if it’s a pass or fail?

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