This article presents a reconfigurable voltage multiplying rectifier (RVMR) to improve the performance of an LLC resonant converter for wide output voltage applications. The RVMR can operate as voltage-doubler mode or voltage-quadrupler mode according to the primary switching strategy. Two operation modes split a wide output voltage range into two narrow ranges. Therefore, the RVMR enables the LLC resonant tank to be designed in a narrow output voltage range, which results in a narrow switching frequency range, high efficiency, and high power density. A smooth mode transition can be achieved by adopting a phase-shift control to general pulse frequency modulation control without any additional switch. The proposed RVMR LLC converter can improve its efficiency by 2.9% and reduce component volume by 26% compared to the conventional full-bridge LLC resonant converter. A 750-W prototype with 400 V input, 100–300 V output voltage, and 2.5 A max output current has been built and tested to verify the effectiveness of the proposed converter.

中文翻译：

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高效率 有限责任公司 具有可重配置电压倍增整流器的谐振转换器，适用于宽输出电压应用

本文提出了一种可重配置的倍压整流器（RVMR），以提高APS的性能。 有限责任公司用于宽输出电压应用的谐振转换器。根据主要切换策略，RVMR可以作为倍压器模式或倍压器模式工作。两种操作模式将一个宽的输出电压范围分为两个窄的范围。因此，RVMR启用了有限责任公司谐振槽设计在狭窄的输出电压范围内，从而导致狭窄的开关频率范围，高效率和高功率密度。通过将相移控制应用于一般的脉冲频率调制控制，而无需任何额外的开关，就可以实现平滑的模式转换。拟议的RVMR有限责任公司 与传统的全桥相比，该转换器可将其效率提高2.9％，并将组件体积减少26％ 有限责任公司谐振转换器。已构建并测试了具有400 V输入，100–300 V输出电压和2.5 A最大输出电流的750 W原型，以验证所提出转换器的有效性。