非对称PWM方案平衡电压双输出交错四开关Buck-Boost DC-DC变换器

2022 IEEE Ninth International Conference on Communications and Electronics (ICCE) Pub Date : 2022-07-27 DOI:10.1109/ICCE55644.2022.9852055

D. Bui, Honnyong Cha, Viet-Chan Nguyen

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引用次数: 4

摘要

本文提出了一种双输出交错降压(DOBB) dc-dc变换器，并给出了相应的PWM方案。对于传统的PWM方案，DOBB变换器继承了自然输出电压平衡，但仅当D $\geq$ 0.5(升压区域)时。所提出的非对称PWM方案有助于DOBB变换器消除占空比的限制。因此，即使在负载不平衡的情况下，在整个占空比范围内，无需任何专用控制器和/或辅助电路，两个输出电压也能自动平衡。建立了一个1.6 kw的原型转换器并进行了测试，以验证所提出的转换器的性能。

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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Asymmetrical PWM Scheme Balancing Voltages Dual-outputs Interleaved Four-switch Buck-Boost DC-DC Converter

This paper proposed a dual-outputs interleaving buck-boost (DOBB) dc-dc converter and a proper PWM scheme for the converter. With the conventional PWM scheme, a DOBB converter inherits natural output voltage balancing, but only when D$\geq$0.5 (boost region). The proposed asymmetrical PWM scheme helps the DOBB converter eliminate the duty ratio limitation. As a result, the two output voltages are automatically balanced even with unbalanced load conditions without any dedicated controller and/or auxiliary circuits in a whole range of duty ratio. A 1.6-kW prototype converter is built and tested to verify the performance of the proposed converter.

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2022 IEEE Ninth International Conference on Communications and Electronics (ICCE)

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