The paper presents a two-phase interleaved boost converter (IBC) providing higher step-up conversion ratio compared to the conventional IBC. The circuit consists of a crossly connected diode-capacitor cell which provides the extra boost up. The two identical capacitors of the cell are charged in parallel and discharged in series providing high voltage gain at considerably low duty ratio. Switching operations, ripple and average currents through inductors are analyzed in continuous conduction mode (CCM). Ripple in input current is also improved. The voltage stress across the semiconductor devices is less in the proposed converter. Also, boundary load condition is derived. Small-signal modeling is carried out and a control circuit is enabled in the voltage mode control framework. Power losses are analyzed and 96.53% efficiency is achieved. Finally, the proposed converter is designed and implemented, and experimental results are provided.

中文翻译：

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具有改进转换比和低电压应力的高效两相交错升压转换器的设计与分析

本文提出了一种两相交错式升压转换器 (IBC)，与传统 IBC 相比，它提供更高的升压转换率。该电路由一个交叉连接的二极管电容单元组成，可提供额外的升压。电池的两个相同电容器并联充电和串联放电，以相当低的占空比提供高电压增益。在连续导通模式 (CCM) 下分析通过电感器的开关操作、纹波和平均电流。输入电流的纹波也得到改善。在所提出的转换器中，半导体器件上的电压应力较小。此外，还导出了边界载荷条件。在电压模式控制框架中进行小信号建模并启用控制电路。分析功率损耗和 96.53%效率达到。最后，设计并实现了所提出的转换器，并提供了实验结果。