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首页> 外文期刊>IEEE Transactions on Industrial Electronics >Bridgeless Filterless Neutral-Point-Clamped Resonant AC/DC Converter
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Bridgeless Filterless Neutral-Point-Clamped Resonant AC/DC Converter

机译:Bridgeless Filterless Neutral-Point-Clamped Resonant AC/DC Converter

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摘要

In this article, we present a bridgeless filterless neutral-point-clamped (NPC) resonant ac/dc converter. By using the push#x2013;pull transformer itself, with the primary-side switching modulation fixed at 0.5, the proposed ac/dc converter accomplishes theoretically zero input-current ripple and so does not need the extra input filter. Semibridgeless configuration reduces the conduction loss associated with an input full-bridge diode rectifier. The resonant NPC structure much reduces the voltage stress at turn- off instant; this aspect reduces the turn- off loss occurred at the secondary-side switches. Therefore, the proposed converter features low cost, high power density, and high efficiency. A prototype with 1-kW output power is implemented to verify the superior properties of the proposed ac/dc converter.
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