| 开关电源的PWM-PFM控制电路 |
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| 引用本文： | 邹怀安,张锐,胡荣强. 开关电源的PWM-PFM控制电路[J]. 电子质量, 2004, 0(3): J021-J022 |
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| 作者姓名： | 邹怀安 张锐 胡荣强 |
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| 作者单位： | 武汉理工大学自动化学院;武汉理工大学自动化学院;武汉理工大学自动化学院 |
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| 摘 要： | 本文比较了开关电源中的三种控制方式脉宽调制(PWM)、脉频调制(PFM)、调宽调频(PWM-PFM),并简要介绍了一种新型开关电源,对其新颖、实用的PWM-PFM电路的工作原理作了较详细的分析.实验证明,此电路对输入电压波动较大的工业环境具有很好的适应性.
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| 关 键 词： | 脉冲宽度调制 脉冲频率调制 脉冲宽度频率调制 |
PWM-PFM Control Circuit of Switch Power Supply |
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| Zou Huaian Zhang Rui Hu Rongqiang School of Automation of Wuhan University of Technology. PWM-PFM Control Circuit of Switch Power Supply[J]. Electronics Quality, 2004, 0(3): J021-J022 |
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| Authors: | Zou Huaian Zhang Rui Hu Rongqiang School of Automation of Wuhan University of Technology |
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| Affiliation: | Zou Huaian Zhang Rui Hu Rongqiang School of Automation of Wuhan University of Technology |
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| Abstract: | Three control modes about switch power supply were compared in this article.such as PWM,PFM,PWM-PFM,and a new model of switch power supply was introduced in brief.The author analysed the principle of power supply in detail.lt was testified that the input voltage of the circuit could fit the foul industrial entironment. |
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| Keywords: | PWM PFM PWM-PFM |
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