| 脉冲序列调制-脉冲跳周期调制Buck变换器研究 |
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| 引用本文： | 牟清波,许建平,王金平,刘雪山. 脉冲序列调制-脉冲跳周期调制Buck变换器研究[J]. 电力电子技术, 2010, 44(10) |
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| 作者姓名： | 牟清波 许建平 王金平 刘雪山 |
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| 作者单位： | 西南交通大学,电气工程学院,四川,成都,610031;西南交通大学,电气工程学院,四川,成都,610031;西南交通大学,电气工程学院,四川,成都,610031;西南交通大学,电气工程学院,四川,成都,610031 |
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| 基金项目： | 国家自然科学基金项目(50677056):中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 脉冲序列调制(Pulse Train Modulation,简称PTM)采用高、低能量脉冲对开关变换器的输出电压进行调整,其动态响应速度快,控制器设计简单,但同时开关变换器轻载效率低,输出电压纹波大。脉冲跳周期调制(Pulse Skipping Modulation,简称PSM)采用ON/OFF控制对输出电压进行调整,虽然提高了开关变换器的轻载效率,但也存在输出电压纹波大的缺点。结合PTM与PSM调制技术,提出了开关变换器的PTM-PSM调制技术,在保留PSM调制轻载效率高的同时,降低了输出电压的纹波。最后设计了基于PTM-PSM调制的Buck变换器,通过实验验证了分析结果。
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| 关 键 词： | 脉冲序列调制 脉冲宽度调制 脉冲跨周期调制 |
Study of Pulse Train Modulation Pulse Skipping Modulation Buck Converter |
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| MOU Qing-bo,XU Jian-ping,WANG Jin-ping,LIU Xue-shan. Study of Pulse Train Modulation Pulse Skipping Modulation Buck Converter[J]. Power Electronics, 2010, 44(10) |
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| Authors: | MOU Qing-bo XU Jian-ping WANG Jin-ping LIU Xue-shan |
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| Affiliation: | MOU Qing-bo,XU Jian-ping,WANG Jin-ping,LIU Xue-shan(Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | Pulse train modulation(PTM)control technique uses two preset control pulses with different duty ratio to realize the regulation of the output voltage of switching DC/DC converter.PTM controller is easy to realize,with no compensation network.However,at light load,its efficiency is low and output voltage ripple is large.Pulse skipping modulation(PSM)realize the output voltage regulation of switching dc/dc converter by the ON/OFF control of power switch,at light load,its efficiency is high,but still suffers l... |
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| Keywords: | pulse train modulation pulse width modulation pulse skipping modulation |
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