| 基于ZVRT的零电压DC/AC变换器的研究 |
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| 引用本文： | 林国庆,王建新. 基于ZVRT的零电压DC/AC变换器的研究[J]. 福州大学学报(自然科学版), 2007, 35(4): 545-548 |
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| 作者姓名： | 林国庆 王建新 |
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| 作者单位： | 福州大学电气工程与自动化学院,福建,福州,350002 |
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| 基金项目： | 福建省自然科学基金 , 福建省科技三项费资助项目 |
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| 摘 要： | 提出一种低频方波输出的零电压DC/AC变换器,它结合了Buck DC/DC变换器和半桥DC/AC变换器的特点,合二为一,负载侧输出为低频方波信号.在低频正负半波期间,电路工作在ZVRT-BUCK变换器模式,两个开关管互为主开关管和辅助开关管.详细分析了它的工作原理和软开关情况,由于采用了ZVRT技术,两个开关管均实现了零电压通断,提高了电路效率.实验结果验证了该方案是可行的.
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| 关 键 词： | 零电压 ZVRT 低频方波 DC/AC变换器 |
| 文章编号： | 1000-2243(2007)04-0545-04 |
| 修稿时间： | 2007-01-05 |
Research on a zero-voltage soft-switching DC/AC converter based on ZVRT technology |
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| LIN Guo-qing,WANG Jian-xin. Research on a zero-voltage soft-switching DC/AC converter based on ZVRT technology[J]. Journal of Fuzhou University(Natural Science Edition), 2007, 35(4): 545-548 |
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| Authors: | LIN Guo-qing WANG Jian-xin |
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| Affiliation: | (College of Electrical Engineering and Automation,Fuzhou University,Fuzhou,Fujian 350002,China) |
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| Abstract: | A zero-voltage soft-switching DC/AC converter with low-frequency square-wave output is proposed in the paper.The proposed converter is derived from combining a Buck DC/AC converter and a half-bridge DC/AC inverter.During the different low-frequency half-wave,The circuit is operating in ZVRT(Zero Voltage Resonant Transition) Buck converter,and the two switches are considered as the main switch or the auxiliary switch each other.The circuit operation and soft-switching analysis are detailed.Because the two switches are turned on and off under zero-voltage,higher efficiency is achieved.The experimental measurements are used to verify the theoretical prediction and analytical discussion. |
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| Keywords: | zero-voltage ZVRT low-frequency square-wave DC/AC converter |
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