一种具有死区时间控制的新型软开关PWM DC-DC变换器的分析

S. Pattnaik, A. Panda, K. Mahapatra
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引用次数: 3

摘要

提出了一种基于mosfet的零电压开关(ZVS)脉宽调制(PWM) DC-DC变换器。该转换器通过降低开关间的电压和电流应力来实现零电压vs,从而通过最小化开关和传导损耗来提高效率。最后通过一个360w、50v / 6v、100khz PWM的半桥降压变换器样机验证了所预测的变换器的工作原理和理论分析。此外,在软开关变换器的全输出功率下,总效率从硬开关情况下的80%提高到95%左右。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analysis of a novel improved soft switching PWM DC-DC converter with dead time control
A new zero-voltage switching (ZVS) pulse width modulation (PWM) DC-DC converter using MOSFETs is proposed in this paper. The proposed converter achieves ZVS with reduction in voltage and current stresses across switches to improve the efficiency by minimizing the switching and conduction losses. The predicted operation principles and theoretical analysis of the presented converter are verified with a prototype of a 360 W, 50 V/6 V and 100 kHz PWM half bridge buck converter. Additionally, at full output power in the proposed soft switching converter the overall efficiency, which is 80% in the hard switching case, increases to about 95%.
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