一种单位功率因数正激变换器

Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI:10.1109/IAS.1992.244332

D. Divan, G. Venkataramanan, C. Chen

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引用次数: 52

摘要

提出了一种利用最小附加元件在开关电源中获得正弦、单位功率因数输入电流的新方法。该变换器在拓扑上相当于由正向功率变换器级联的升压变换器，但仅使用单个功率级实现。并对其操作进行了详细分析。恒频电流模式控制在输出端提供优异的瞬态性能，在输入端提供正弦输入电流。深入讨论了转换器元件和控制参数设计中涉及的各种权衡。所有的结果都得到了实验室变换器实验波形的支持

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A unity power factor forward converter

A novel means of obtaining sinusoidal, unity power factor input currents in switched mode power supplies using minimum additional components is presented. The converter is topologically equivalent to a boost converter cascaded by a forward power converter, but is realized using only a single power stage. A detailed analysis of the operation is presented. A constant frequency current mode control provides excellent transient performance at the output and sinusoidal input currents at the input. Various tradeoffs involved in the design of the converter elements and control parameters are discussed in depth. All the results are backed up by experimental waveforms from a laboratory converter.<>

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Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting

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