| 零电流零电压开关PWM Boost全桥变换器 |
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| 引用本文： | 周林泉,阮新波.零电流零电压开关PWM Boost全桥变换器[J].南京航空航天大学学报(英文版),2003,20(1):60-66. |
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| 作者姓名： | 周林泉 阮新波 |
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| 作者单位： | 南京航空航天大学航空电源航空科技重点实验室,南京,210016,中国 |
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| 摘 要： | 提出一种新颖的零电流零电压开关PWM Boost全桥变换器。超前管串联电感，并利用输出滤波电容的能量，可以在很宽的负载范围内实现ZCS。滞后管利用其寄生电容和与变压器原边并联的辅助电感，可以在任何负载下实现ZVS。与ZCS PWM Boost全桥变换器相比，所提出的变换器没有电流占空比丢失的问题。本文详细分析了该变换器的工作原理，参数设计原则。通过一个480W的原理样机，验证了分析结果。
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| 关 键 词： | 零电流零电压开关 PWMBoost全桥变换器 脉冲调制 软开关 工作原理 电流占空比 |
ZERO-CURRENT AND ZERO-VOLTAGE SWITCHING PWM BOOST FULL-BRIDGE CONVERTER |
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| ZHOU Lin-quan,RUAN Xin-bo.ZERO-CURRENT AND ZERO-VOLTAGE SWITCHING PWM BOOST FULL-BRIDGE CONVERTER[J].Transactions of Nanjing University of Aeronautics & Astronautics,2003,20(1):60-66. |
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| Authors: | ZHOU Lin-quan RUAN Xin-bo |
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| Abstract: | This paper proposes a zer o current and zero voltage switching (ZCZVS) PWM Boost full bridge (FB) conve rter. With series inductors, the leading switches can realize zero current swit ching (ZCS) in a wide load range using the energy of the output capacitor. Ma king use of parasitic capacitors of the lagging switches and parallel auxiliary i nductance with the primary winding of the transformer, the lagging switches can realize zero voltage switching (ZVS) under any load. Compared with the ZCS PWM Boost FB converter, the new converter has no current duty cycle loss. Operat ional principle and parameter design are analyzed. Experimental results verify the effectiveness of the proposed converter. |
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| Keywords: | pulse width modulation (PWM) soft switching boost converter full bridge converter zero voltage s witching zero current switching |
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