| 无刷直流电机电流检测新技术 |
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| 引用本文： | 张东花,梁俊,屠秉慧.无刷直流电机电流检测新技术[J].电测与仪表,2011,48(6):19-22. |
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| 作者姓名： | 张东花 梁俊 屠秉慧 |
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| 作者单位： | 江苏大学，江苏镇江,212003 |
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| 摘 要： | 介绍了一种用MOSFET导通电阻代替电流传感器检测功率变换器主开关电流的技术，该技术根据流过MOSFET开关管的电流大小与其通态压降成正比的原理，用检测通态管压降的方法检测通态电流，分析了开关管通态压降的表现形式及电流波形重构原理，实验结果表明该技术具有实现简单、经济实用的特点，值得推广。
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| 关 键 词： | 电流检测 无刷电机 电流波形重构 MOSFET |
A Novel Current Detection Technology for Brushless DC Motor |
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| ZHANG Dong-hua,LIANG Jun,TU Bing-hui.A Novel Current Detection Technology for Brushless DC Motor[J].Electrical Measurement & Instrumentation,2011,48(6):19-22. |
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| Authors: | ZHANG Dong-hua LIANG Jun TU Bing-hui |
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| Affiliation: | ZHANG Dong-hua,LIANG Jun,TU Bing-hui(Jiangsu University,Zhenjiang 212013,Jiangsu,China) |
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| Abstract: | A novel technique of power electronic switch current detection is introduced in this paper,in which the current-sensor is replaced by MOSFET RDSON.According to the principle that the magnitude of the switch current is proportional to its turned-on voltage drop,the proposed technique utilizes the method of grasping the turned-on voltage drop of the MOSFET to reproduce its current waveform.The appearances of voltage drop of the MOSFET are analyzed and the current reconstruction principles are introduced.Exper... |
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| Keywords: | current-sensing brushless DC motor current reconstruction MOSFET |
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