| 零电压换流条件分析与设计 |
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| 引用本文： | 唐雄民,李轶,彭永进,刘克安.零电压换流条件分析与设计[J].通信电源技术,2004,21(3):1-4. |
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| 作者姓名： | 唐雄民 李轶 彭永进 刘克安 |
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| 作者单位： | 湖南大学电气与信息工程学院,湖南,长沙,410082 |
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| 摘 要： | 研究移相控制全桥零电压开关脉宽调制变换器(FB-ZVS-PWM)的换流过程。针对其滞后桥臂负载电感偏小给零电压导通造成困难的特点，文中放弃了负载电流为恒流源的假设，推导了描述其换流过程的方程。基于这些方程，研究了实现软开关的条件，并用仿真和实验结果验证了该方程的正确性。文中还用一设计实例来说明了这些等式的应用。
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| 关 键 词： | FB-ZVS-PWM 吸收电容 关断损耗 占空比 |
| 文章编号： | 1009-3664(2004)03-0001-04 |
| 修稿时间： | 2004年3月1日 |
An Analysis and Design of ZVS Conditions |
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| TANG Xiong-min,LI Yi,ENG Yong-jin,LIU Ke-an.An Analysis and Design of ZVS Conditions[J].Telecom Power Technologies,2004,21(3):1-4. |
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| Authors: | TANG Xiong-min LI Yi ENG Yong-jin LIU Ke-an |
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| Abstract: | The switching process of FB ZVS DC-DC converter which is based on phase-shift WM control is studied in the paper. As known, the load inductance is very small when the lag legs are turning off, which causes a difficulty in ZVS. In order to describe the process, that think the load current is constant source is aborted, and some equations are deduced in detail. Based on the equations, the condition of ZVS is analyzed, and the simulation and experiment results validate the equations. In order to explain how to use the equations, an example is presented. |
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| Keywords: | FB_ZVS_WM snubber capacitance dissipation of turning off duty ratio |
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