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Subject: search.filters.subject.EMI suppression

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    Controlling conducted EMI emission on a Buck-boost converter using gate controlled circuit
    (2002-01-01)
    Kaewchal, Jamraj
    ;
    Khangern, Werachet
    ;
    Nitta, Sbuicfai
    The suppression of conducted EMI emissions of a Buck-boost converter using a gate controlled circuit is presented. The results indicate that the conducted EMI could he suppressed by conrolling the rise and fall time of gate signal for a MOSFET as a switching device. The simulated results of Buckboost converter at 100 kHz switching frequency of are compared with the experimental results.
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    The study and analysis of the conducted EMI suppression on power MOSFET using passive snubber circuits
    (2002-01-01)
    Yaisom, C. U.
    ;
    Khamgern, W.
    ;
    Nitta, S.
    This paper presents the study and analysis of RCD, RLD, and RCD-RLD passive snubber circuits affect to the power losses and the suppression of the conducted EMI emission on the power MOSFET. The paper describes the snubber effects on dv/dt during turn-off period, di/dt during turn-on period, over voltage, spike voltage, power loss and the conducted EMI emission. The 100 watts -50 kHz buck converter is used in the simulation and the in experiment. The measured and simulated results of conducted EMI emission are compared to verify the effectiveness of the each snubber circuits.