A generalized output branch with coupled inductor is proposed in this article, with which a diversity of single-input dual-output (SIDO) configurations can be synthesized through substituting it for the original inductor in the conventional single-input single-output (SISO) converters. Furthermore, for each configuration, multiple SIDO converters will be generated after realizing the auxiliary voltage source in the generalized output branch with two different nodes. Because the number of magnetic components remains unchanged in comparison with the SISO converter, high power density can be achieved in the derived SIDO converters with coupled inductor. Moreover, the cross-regulation problem is effectively alleviated, and soft-switching operation is realized for switches. Hence, both optimized steady-state and dynamic performance can be obtained. In this article, three example SIDO configurations based on buck, boost, and buck−boost converters are derived, and an example family of 12 SIDO converters from buck converter is demonstrated in detail. Afterwards, a unified operation principle and performance analysis suitable for all these 12 converters are also introduced, which is helpful for the topology comparison. Finally, experimental verification of the theoretical analysis is also conducted.

中文翻译：

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从广义输出支路合成具有耦合电感的双输出 DC-DC 转换器

本文提出了一种具有耦合电感的广义输出支路，通过将其替换传统单输入单输出（SISO）中的原始电感，可以合成多种单输入双输出（SIDO）配置。转换器。此外，对于每种配置，在具有两个不同节点的广义输出支路中实现辅助电压源后，将产生多个 SIDO 转换器。由于与 SISO 转换器相比，磁性元件的数量保持不变，因此派生的带有耦合电感的 SIDO 转换器可以实现高功率密度。并且有效缓解了交叉调节问题，实现了开关的软开关操作。因此，可以获得优化的稳态和动态性能。在本文中，导出了三个基于降压、升压和降压-升压转换器的示例 SIDO 配置，并详细演示了来自降压转换器的 12 个 SIDO 转换器示例系列。随后，还介绍了适用于这12个转换器的统一工作原理和性能分析，有助于拓扑比较。最后，还对理论分析进行了实验验证。