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Dual-Mode Resonant Flyback Single Power-Conversion Inverter

机译：双模谐振反激单电源转换逆变器

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This article presents a dual-mode resonant flyback single power-conversion inverter with reduced number of power components. Unlike conventional flyback converters, it transfers power in a resonant manner during the first half of the switching period and in a linear way during the remaining half of the switching period. It operates in above resonance mode below the computed instantaneous power level, and in below resonance mode above this instantaneous power level. The secondary diodes of the resonant flyback converter are merged into two of the secondary-side switches in the proposed inverter configuration, which reduces the number of active-power components. The operation principle of the inverter is presented and analyzed. By using the dual-mode control strategy, the proposed converter achieves maximum efficiency of 94.3% with total harmonic distortion of 3.8%. Experimental results with a prototype 240-W inverter verify the performance.
机译：本文介绍了双模谐振反激单电源转换逆变器，功率分量减少。与传统的反激式转换器不同，它在切换周期的前半部分和在切换时段的剩余部分期间以线性方式转换功率。它在低于计算的瞬时功率电平下方的谐振模式下操作，并且在该瞬时功率水平上方的谐振模式下方。谐振反激转换器的二级二极管以所提出的逆变器配置合并为两个次级侧开关，这减少了有源功率分量的数量。提出和分析了逆变器的操作原理。通过使用双模控制策略，所提出的转换器的最大效率为94.3％，总谐波变形为3.8％。使用原型240W逆变器的实验结果验证了性能。

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