Abstract
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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Project supported by the National Natural Science Foundation of China (No. 51177147) and the Zhejiang Key Science and Technology Innovation Group Program, China (No. 2010R50021)
ORCID: Xiao CHEN, http://orcid.org/0000-0002-8943-8679
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Chen, X., Qu, Dc., Guo, Y. et al. A driving pulse edge modulation technique and its complex programming logic devices implementation. Frontiers Inf Technol Electronic Eng 16, 1088–1098 (2015). https://doi.org/10.1631/FITEE.1500111
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DOI: https://doi.org/10.1631/FITEE.1500111
Keywords
- Driving pulse edge modulation
- Switching voltage spike
- Complex programmable logic device (CPLD)
- Active gate drive