| 主功率电路设计中的问题及改进 |
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| 引用本文： | 解恩,侯红胜. 主功率电路设计中的问题及改进[J]. 微特电机, 2008, 36(2): 7-9 |
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| 作者姓名： | 解恩 侯红胜 |
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| 作者单位： | 西北工业大学,陕西西安,710072 |
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| 摘 要： | 在某项目无刷直流电动机控制器设计完成之后,实验中频繁出现短路故障,经分析是由于米勒电容充电以及dv/dt导致误导通.为解决此问题,我们采用门极负压关断,但常用负压充电泵元件数目较多.因此设计了一种简化负压栅极驱动电路,电路简单,工作可靠.
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| 关 键 词： | 栅极驱动 米勒电容 负压泵 主功率 电路设计 问题 改进 Circuit Power Design Improvement 工作 栅极驱动电路 简化 元件 充电泵 负压 误导通 电容充电 米勒 分析 短路故障 实验 |
| 文章编号： | 1004-7018（2008）02-0007-03 |
| 收稿时间： | 2007-07-09 |
| 修稿时间： | 2007-07-09 |
Problems and Improvement in the Design of Main Power Circuit |
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| XIE En,HOU Hong-sheng. Problems and Improvement in the Design of Main Power Circuit[J]. Small & Special Electrical Machines, 2008, 36(2): 7-9 |
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| Authors: | XIE En HOU Hong-sheng |
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| Abstract: | Mter the design of BLDCM controller in a project was completed,malfunctions caused frequently by a short circuit. The Miller capacitor and dv/dt induced false turn-on were main problems. For the problem the negative gate drive was adopted, but the number of elements was much in the general negative charge pump circuit. In the paper a simplified negative gate drive circuit was designed and made the power circuit reliably work. |
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| Keywords: | gate drive Miller capacitor negative charge pump |
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