Steep conversion ration Ćuk, Zeta, and sepic converters based on a switched coupled-inductor cell
Steep conversion ration Ćuk, Zeta, and sepic converters based on a switched coupled-inductor cell
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DOI：
10.1109/pesc.2008.4592410
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发表时间：
2008-06
期刊：
影响因子：
--
通讯作者：
B. Axelrod;Y. Berkovich;S. Tapuchi;A. Ioinovici
中科院分区：
文献类型：
--
作者：
B. Axelrod;Y. Berkovich;S. Tapuchi;A. Ioinovici
通过将Cuk（分别为Sepic和Zeta）变换器的输入电感替换为由耦合电感和一个二极管形成的单元，获得了具有高电压比的新的变换器族。在漏电感中积累的能量被转移到负载。开关元件两端的电压应力保持在中等值。整流二极管的反向恢复问题得到缓解。DC分析允许将DC增益公式化为耦合电感的匝数比和耦合系数以及负载的函数。实验结果证实了理论预期。
By replacing the input inductor of the Cuk (respectively Sepic, and Zeta) converter with a cell formed by a coupled inductor and one diode, a new family of converters with high voltage ratio is obtained. The energy accumulated in the leakage inductance is transferred to the load. The voltage stresses across the switching elements are kept at a moderate value. The reverse-recovery problem of the rectifier diode is alleviated. A DC analysis allows for the formulation of the DC gain as a function of the turns ratio and coupling coefficient of the coupled inductor, as well of the load. Experimental results confirm the theoretical expectations.