Study of the effectiveness of anti-phase technique for common mode noise suppression
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This paper discusses the properties of a novel boost converter with auxiliary anti-phase winding approach resulting in low conducted common code noise level. A simplified equivalent circuit of the proposed boost converter is modeled to analyze its performance and to show the influence of the parasitic winding capacitance, as well as the stray capacitances of the switching waveform nodes into the earth plane. Simulation and experimental results are shown to verify the concept.
Key wordsanti-phase technique, EMI (Electromagnetic Interference) model, boost converter
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