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AC/DC cascaded power converters having high DC conversion ratio and improved AC line harmonics
AC/DC cascaded power converters having high DC conversion ratio and improved AC line harmonics
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机译:具有高DC转换率和改进的AC线谐波的AC / DC级联功率转换器
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摘要
AC/DC cascaded power converters having high DC conversion ratio and improved AC line harmonics provide low input harmonic currents, high power factor and efficient operation for low voltage DC outputs when coupled directly to a source of unfiltered rectified AC voltage. The power converter incorporates an intermediate storage element that provides most or all of the energy storage capacitance within the power converter and a blocking device that enables continuous energy transfer from AC line to output to achieve unity power factor and regulated output while maintaining low AC input current ripple.
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