全软开关非隔离高降压DC/DC变换器具有最小的分量计数

2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC) Pub Date : 2022-02-01 DOI:10.1109/PEDSTC53976.2022.9767238

S. Khalili, M. Packnezhad, H. Farzanehfard

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引用次数: 0

摘要

本文提出了一种适用于非隔离DC/DC应用的全软开关高降压变换器，其无源元件和有源元件数量最少。高电压转换比是通过一对耦合电感来实现的，而在基本降压变换器上只增加一个辅助有源开关和一个耦合电感，就能提供主开关的零电压开关条件和主二极管关断时的零电流开关条件。因此，在软开关高降压变换器中，就元件数量而言，该变换器是最佳的。上述变流器的优点有助于实现高效率。为了验证变换器的理论运行和分析，在100W和100kHz下实现了155- 24v的实验室原型电路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Fully Soft-switched Non-isolated High Step-down DC/DC Converter with Minimum Component Count

A fully soft-switched high step-down converter with minimum number of passive and active components is presented in this paper, which is suitable for non-isolated DC/DC applications. High voltage conversion ratio is achieved by a pair of coupled inductors while zero voltage switching condition for the main switch along with zero current switching condition for the main diode at turn-off are provided by adding only an auxiliary active switch and a coupled inductor to the basic buck converter. Thus, the converter is optimum in terms of component count among the soft-switched high step-down converters. The mentioned converter advantages have contributed to the realization of high efficiency. To confirm the theoretical operation and analysis of the converter, a laboratory prototype circuit is implemented for 155-to-24V at 100W and 100kHz.

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来源期刊

2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)

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