| 本质安全型Buck变换器的电感电流分析 |
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| 引用本文： | 寇蕾.本质安全型Buck变换器的电感电流分析[J].科学技术与工程,2010,10(12). |
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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： | 分别对Buck变换器工作在连续导电模式(CCM)和不连续导电模式(DCM)时的电感峰值电流进行了分析,指出无论变换器工作在CCM还是DCM,其电感峰值电流均随输入电压的增大而增大,随负载电阻和电感的增大而减小。得出在给定输入电压和负载变化范围内,在最高输入电压和最小负载电阻时,且变换器工作在CCM下的最大峰值电感电流就是变换器在整个动态工作范围内的最大电感电流。最后仿真结果验证了理论分析的正确性。
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| 关 键 词： | 本质安全 Buck变换器 内部本质安全 最大峰值电感电流 |
| 收稿时间： | 2/2/2010 11:42:11 AM |
| 修稿时间： | 2/2/2010 11:42:11 AM |
Analysis of Inductor Current of Intrinsically Safe Buck Converters |
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| kou lei.Analysis of Inductor Current of Intrinsically Safe Buck Converters[J].Science Technology and Engineering,2010,10(12). |
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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 peak inductor current of Buck converters in Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM) are analyzed, respectively. It is pointed out that in CCM and DCM the peak inductor current increase with the input voltage, while it decrease with the load resistance and the inductance. It is concluded that if a Buck converter is in CCM in case of the highest input voltage and the minimum load resistance, the maximum peak inductor current in such condition is the maximal inductor curren... |
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| Keywords: | intrinsic safety Buck converters inner intrinsic safety the maximum peak current |
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