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Harmonic Filter

Discussion in 'General Electronics Discussion' started by joyanand_bd007, Aug 9, 2013.

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  1. joyanand_bd007


    Aug 9, 2013
    Need some help with harmonics filter . I am doing an led driver project where the output current waveform has some form of harmonic. To filter that out i want to add an harmonic filter . Anyone with any idea how should i approach . Thank You
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    Nov 17, 2011
    You're not being very specific. What is the expected waveform? What does the actual waveform look like?

    Harmonic content per se is not a bad thing. If you drive LEDs with a rectangular pulsed current, you will have lots of harmonics but high efficiency.

    Apart from that, harmonics can be suppressed by a simple low pass filter.
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