| 有限双极性软开关PWM控制和IGBT驱动电路设计 |
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| 引用本文： | 熊敬清,蒙万俊,陈小峰,薛家祥,姚屏.有限双极性软开关PWM控制和IGBT驱动电路设计[J].电焊机,2008,38(12). |
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| 作者姓名： | 熊敬清 蒙万俊 陈小峰 薛家祥 姚屏 |
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| 作者单位： | 1. 华南理工大学,机械与汽车学院,广东,广州510640
2. 华南理工大学,机械与汽车学院,广东,广州510640;广东技术师范学院,广东广州510635 |
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| 摘 要： | PWM调制和IGBT驱动电路用于对IGBT逆变主电路的驱动信号的直接控制,调制方法和驱动电路直接决定着焊接质量.为了改善器件的运行环境,降低开关损耗,现选用电流脉宽调制芯片UC3846为核心,采用有限双极性软开关PWM控制技术实现脉冲调制,并设计了相应的IGBT驱动电路.实现了PWM信号的隔离、放大和保护,对IGBT的正常工作及其保护起着非常重要的作用,控制IGBT的开关工作过程.调节各种参数进行实验,结果表明设计思路的切实可行,驱动电路性能良好.
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| 关 键 词： | 软开关 脉宽调制(PWM) IGBT驱动电路 |
Bipolar limited soft-switching PWM control and IGBT drive circuit design |
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| XIONG Jing-qing,MENG Wan-jun,CHEN Xiao-feng,XUE Jia-xiang,Yao Ping.Bipolar limited soft-switching PWM control and IGBT drive circuit design[J].Electric Welding Machine,2008,38(12). |
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| Authors: | XIONG Jing-qing MENG Wan-jun CHEN Xiao-feng XUE Jia-xiang Yao Ping |
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| Affiliation: | XIONG Jing-qing1,MENG Wan-jun1,CHEN Xiao-feng1,XUE Jia-xiang1,Yao Ping1,2(1.Mechanical & Automoving Engineering College,South China University of Technology,Guangzhou 510640,China,2.Guangdong Polytechnic Normal University,Guangzhou 510635,China) |
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| Abstract: | PWM modulation and IGBT drive circuits determined the quality of welding,controlled the output of driving signal for the IGBT inverter main circuit.So a novel PWM control technique is presented to improve the device's operating environment and reduce the switching losses.Choose Current PWM chips UC3846.Uses the bipolar limited soft-switching PWM control to make pulse modulation.Designed a driver circuit,which can isolate PWM control signals,transmission,amplification,superior performance,reliable protection... |
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| Keywords: | UC3846 |
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