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The ringing oscillation in turn-off of diode may induce electromagnetic interference (EMI) noise especially in fast switching operation. This study compares static and dynamic characteristics of a Si PiN diode and three type SiC Schottky barrier diodes, which have comparable voltage and current ratings, and focuses on the influence of diode characteristics on conducted emission of the continuous current...
This paper aimed at modeling EMI noise source of the continuous current mode (CCM) DC-DC converter. To this end, this paper focuses on the reverse recovery phenomenon of Si and SiC diodes which is induced in its turn-off operation. This paper also studies the effect of the input voltage level on the recovery current and on the conducted EMI noise in CCM DC-DC boost converter under periodic steady-state...
Power factor correction (PFC) converters are commonly used at the first stage in single-phase switch-mode AC/DC power converters to improve the input current waveform distortion and achieve high efficiency in energy conversion. The operating condition of MOSFET in a PFC converter changes dynamically and periodically. This paper studies the operating condition and output load dependency of spectrum...
It is important for EMC design of power conversion circuit to model EMI noise source. LECCS (Linear Equivalent Circuit and Current Source) model has been proposed for modeling EMI noise in an LSI (Large Scale Integration) on PCB. This paper studies the noise generating mechanism in a half bridge circuit and noise source modeling with equivalent internal impedance and equivalent internal current source.
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