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2015年 第16卷 第12期

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《信息与电子工程前沿（英文）》 >> 2015年 第16卷 第12期 doi: 10.1631/FITEE.1500111

A driving pulse edge modulation technique and its complex programming logic devices implementation

1. Electrical Engineering Department, Zhejiang University, Hangzhou 310027, China.2. School of Automation and Electrical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China

发布日期： 2015-12-21
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With the continual increase in switching speed and rating of power semiconductors, the switching voltage spike becomes a serious problem. This paper describes a new technique of driving pulse edge modulation for insulated gate bipolar transistors (IGBTs). By modulating the density and width of the pulse trains, without regulating the hardware circuit, the slope of the gate driving voltage is controlled to change the switching speed. This technique is used in the driving circuit based on complex programmable logic devices (CPLDs), and the switching voltage spike of IGBTs can be restrained through software, which is easier and more flexible to adjust. Experimental results demonstrate the effectiveness and practicability of the proposed method.

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