| 基于等效电阻法的本质安全型Buck DC-DC变换器的新研究 |
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| 引用本文： | 寇蕾.基于等效电阻法的本质安全型Buck DC-DC变换器的新研究[J].科学技术与工程,2010,10(11). |
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| 作者姓名： | 寇蕾 |
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| 作者单位： | 暨南大学电气自动化研究所,珠海,519070 |
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| 摘 要： | 对Buck DC-DC变换器电感开路的最危险情况进行了分析,提出了一个全新的分析方法——等效电阻法,将Buck DC-DC变换器电感开路的放电特性等效为一个简单电感电路,推导了等效电阻的表达式;以感性电路的最小点燃曲线作为判断依据,得到了本质安全型Buck DC-DC变换器内部本质安全性的判断方法,并用实验验证了所提方法的合理性和判据的正确性。
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| 关 键 词： | Buck DC-DC变换器 本质安全 内部本质安全 等效电阻 最小点燃电流 |
| 收稿时间： | 2010/1/19 0:00:00 |
| 修稿时间： | 2010/1/19 0:00:00 |
A Novel Study on Intrinsically Safe Buck DC-DC Converters Based on Equivalent-resistance Method |
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| kou lei.A Novel Study on Intrinsically Safe Buck DC-DC Converters Based on Equivalent-resistance Method[J].Science Technology and Engineering,2010,10(11). |
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| Authors: | kou lei |
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| Institution: | Electric Automation Institute of Jinan University/a>;Zhuhai 519070/a>;P.R.China |
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| Abstract: | The most dangerous case of disconnecting inductor of a Buck DC-DC converter is analyzed deeply.The equivalent-resistance analysis method is proposed which equal the inductor-disconnected discharged behavior of Buck converters to an equivalently simple inductive circuit.The formula of equivalent-resistance is deduced.Based on this method,the inner intrinsic safety of the Buck converter is determined by comparing the equivalent-current of the inductor of the converter with the minimum ignition current.The exp... |
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| Keywords: | Buck DC-DC converters intrinsic safety inner intrinsic safety equivalent-resistance the minimum ignition current |
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