| 有源箝位ZVS单端正激变换器的三种工作模式分析(一) |
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| 引用本文： | 师宇杰,白峰,周东方. 有源箝位ZVS单端正激变换器的三种工作模式分析(一)[J]. 电源学报, 2002, 1(3): 189-192 |
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| 作者姓名： | 师宇杰 白峰 周东方 |
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| 作者单位： | 解放军信息工程大学，郑州 450002 |
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| 摘 要： | 由于负载和谐振电感的不同，有源箝位ZVS单端正激变换器出现了三种不同的工作过程，我们称之为三种工作模式(其中不包括非零压模式)。三种模式中，主开关管和辅助开关管都是零压开通的，而变压器的磁化情况各不相同，并且适用场合也不同。本文分别对这三种工作模式进行了分析，并从中得出了一些有价值的结论，通过计算机仿真，证实了这些结论的正确性，最后给出了一个应用实例。
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| 关 键 词： | 有源箝位；单端正激变换器；软开关 |
Analysis Of The Three Operation Modes Of ZVS Active Clamp Forward Converter (1) |
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| SHI Yu-Jie,BAI Feng and ZHOU Dong-Fang. Analysis Of The Three Operation Modes Of ZVS Active Clamp Forward Converter (1)[J]. Journal of Power Supply, 2002, 1(3): 189-192 |
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| Authors: | SHI Yu-Jie BAI Feng ZHOU Dong-Fang |
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| Affiliation: | PLA Information Engineering University , Zhengzhou , 450002;PLA Information Engineering University , Zhengzhou , 450002;PLA Information Engineering University , Zhengzhou , 450002 |
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| Abstract: | Active voltage clamping was introduced as a resetting technique for the transformer of the forward converter. Due to the difference of the loads and resonant inductors, the ZVS active clamp forward converter has three operation modes except for the none-ZVS mode. This paper analyze the three operation modes respectively , and draw some valuable conclusions. Finally, the simulation results verify the correctness of the conclusions. An application example of the first operation mode using a 15W prototype operating on 357KHz switching frequency is also presented. |
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| Keywords: | Active Clamp Forward Converter Soft Switching |
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