In this article, the inherent fault-tolerant capability of the soft-switching cell for boost-based dc–dc converters is investigated. The main switch of boost-based dc–dc converters withstands high-temperature stress, which is expected to be failed with a higher probability than other devices. Providing soft-switching condition for the main switch and employing fault-tolerant capability are effective approaches to solve this problem. When a fault occurs for the main switch, the proposed converter can be reconfigured such that the soft-switching cell can change its duty to continue the normal operation of the converter without interruption. Inherent redundancy, low failure rate, high integration, and high efficiency are the specifications of the presented converter. The reliability analyses are presented and the functionality of the active soft-switching cell to provide soft-switching condition and fault-tolerant capability are verified by experimental results.

中文翻译：

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具有固有冗余特性的软开关单元在提高基于升压的 DC-DC 转换器可靠性中的应用

在本文中，研究了基于升压的 DC-DC 转换器的软开关单元的固有容错能力。基于升压的 dc-dc 转换器的主开关可承受高温应力，与其他设备相比，预计其发生故障的概率更高。为主开关提供软开关条件并采用容错能力是解决这一问题的有效途径。当主开关出现故障时，可以重新配置所提出的转换器，以便软开关单元可以改变其占空比以继续转换器的正常运行而不会中断。固有的冗余、低故障率、高集成度和高​​效率是所提出的转换器的规格。