| 二次侧加钳位开关管的ZCS PWM Boost型DC/DC全桥变换器 |
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| 引用本文： | 周林泉,阮新波. 二次侧加钳位开关管的ZCS PWM Boost型DC/DC全桥变换器[J]. 电工技术学报, 2006, 21(10): 81-85 |
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| 作者姓名： | 周林泉 阮新波 |
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| 作者单位： | 南京财经大学食品工程学院,南京,210003;南京航空航天大学自动化学院,南京,210016 |
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| 摘 要： | 提出了一种二次侧加钳位开关管的移相控制零电流开关(ZCS) PWM Boost 型DC/DC全桥变换器.该变换器在二次侧加二只用作钳位的辅助开关管,利用恒定的输出电压,通过变压器对一次侧的开关管进行钳位,减小了开关管的电压应力,所有开关管均实现ZCS.本文对该变换器的工作原理进行了详细分析,给出了参数设计的原则.在实验室完成了一台1200W原理样机,实验结果证实了理论分析的正确性.
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| 关 键 词： | 脉宽调制 Buck 型全桥变换器 Boost 型全桥变换器 零电流开关 |
| 修稿时间： | 2005-09-16 |
A ZCS PWM Boost Full-Bridge DC/DC Converter With Secondary Clamping Switches |
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| Zhou Linquan,Ruan Xinbo. A ZCS PWM Boost Full-Bridge DC/DC Converter With Secondary Clamping Switches[J]. Transactions of China Electrotechnical Society, 2006, 21(10): 81-85 |
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| Authors: | Zhou Linquan Ruan Xinbo |
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| Affiliation: | 1. Nanjing University of Finances and Economics Nanjing 210003 China 2. Nanjing University of Aeronautics and Astronautics Nanjing 210016 China |
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| Abstract: | A zero-current-switching(ZCS) PWM Boost DC/DC full-bridge(FB) converter with secondary clamping switches is proposed. Adding two assistant switches in secondary, the voltage spike of primary switches are clamped by the secondary constant output voltage, and the voltage stress of primary switches is minimized. All switches realize zero-current turning on and zero-current turning off. The operation principle and the parameters design are analyzed. A 1200W prototype is built to verify the effectiveness of the proposed converter in the laboratory. The experimental results are also included in this paper. |
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| Keywords: | Pulse width modulation (PWM) full-bridge buck converters full-bridge boost converters zero-current-switching(ZCS) |
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