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开关电容PWM DC-DC电压调节模块 被引量:8

Switching Capacitor PWM DC-DC Voltage Regulator Module
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摘要 介绍了一种开关电容PWM DC-DC电压调节模块,该变换器是开关电容变换器和PWM变换器的结合,具有如下优点:①开关管的零电压开关(Zero-Voltage-Switching,ZVS);②运用自耦变压器实现同步整流管(Synchronous Rectifier,SR)的自驱动,减小了驱动损耗和体二极管导通损耗;③变压器漏感对效率的影响小,可以使用常规的分立式变压器,从而降低成本;④变换器是单相的,结构简单,应用灵活。在理论分析的基础上,搭建了一台四相700kHz 1.2V/130AVRM原理样机验证了理论分析的正确性。 This paper proposes a novel switching capacitor PWM DC-DC voltage regulator module.The converter is a combination of a switching capacitor converter and a PWM converter,and it has the following advantages: ① Zero voltage switching of all the MOSFETs.② Using an auto transformer self-driven method to save the driver loss and the synchronous rectifier(SR) body diode conduction loss.③Its efficiency is not sensitive to leakage inductor,so that the discrete transformer can be used to save the cost.④Single phase option makes it more flexible.A four-phase 700kHz 1.2V/130A output VRM prototype was built to verify the analysis.
出处 《电工技术学报》 EI CSCD 北大核心 2012年第10期182-189,共8页 Transactions of China Electrotechnical Society
基金 国家自然科学基金(51007038) 台达环境与教育基金会《电力电子科教发展计划》资助项目
关键词 开关电容变换器 PWM变换器 自驱动 零电压开关 Switching capacitor converter PWM converter self-driven zero voltage switching
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参考文献14

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二级参考文献65

共引文献112

同被引文献45

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