| 基于SG3525实现PWM Buck三电平变换器的控制 |
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| 引用本文： | 周佩娟,钟小芬.基于SG3525实现PWM Buck三电平变换器的控制[J].苏州科技学院学报(工程技术版),2004,17(3):59-63. |
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| 作者姓名： | 周佩娟 钟小芬 |
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| 作者单位： | 1. 吉首大学,电子与信息工程系,湖南,吉首,416000
2. 华南理工大学,电力学院,广东,广州,510640 |
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| 摘 要： | 分析了SG3525电压词节芯片实现PWM Buck三电平变换器控制的原理.基于SG3525电压调节芯片的控制方法用集成芯片代替分立元件,大大简化了电路,可以较好地解决电路的不均压问题.最后验证了采用上述控制方法来实现对输入电压为120V(90～180 V),输出为48 V/4A,开关频率50kHz的PWM Buck三电平变换器的控制是行之有效的.
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| 关 键 词： | PWM Buck三电平变换器 SG3525电压调节芯片 控制方式 |
| 文章编号： | 1672-0679(2004)03-0059-05 |
| 修稿时间： | 2004年8月8日 |
On Keeping Control of PWM Buck Three-Level Converter Based on SG3525 Chip |
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| ZHOU Pei-juan,ZHONG Xiao-fen.On Keeping Control of PWM Buck Three-Level Converter Based on SG3525 Chip[J].Journal of University of Science and Technology of Suzhou：Engineering and Technology,2004,17(3):59-63. |
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| Authors: | ZHOU Pei-juan ZHONG Xiao-fen |
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| Affiliation: | ZHOU Pei-juan1,ZHONG Xiao-fen2 |
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| Abstract: | This paper analyses the method of voltage modulator based on SG3525 chip controlling PWM Buck Three-Level(TL) converter. The controlling method is that an integrated chip replaces many discrete devices, simplifies the circuit and solves the problem of voltage-sharing. In addition, PWM Buck TL converter based on previous control method is verified by experiments with 120V normal input voltage, 48 V output voltage, 4 A out current, 50 kHz switching frequency. |
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| Keywords: | pulse width modulation buck three-level converter SG3525 voltage modulator controlling methods |
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