Influence of Current Collapse due to $V_{ds}$ Bias Effect on GaN-HEMTs $I_{d}-V_{ds}$ Characteristics in Saturation Region

Influence of Current Collapse due to $V_{ds}$ Bias Effect on GaN-HEMTs $I_{d}-V_{ds}$ Characteristics in Saturation Region
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发表时间:
2022-09
期刊:
2022 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe)
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通讯作者:
Xuyang Lu;A. Videt;Ke Li;S. Faramehr;P. Igić;N. Idir
Xuyang Lu;A. Videt;Ke Li;S. Faramehr;P. Igić;N. Idir
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作者:
Xuyang Lu;A. Videt;Ke Li;S. Faramehr;P. Igić;N. Idir

文献摘要

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本文提出了一种基于改进的 H 桥电路的新方法,研究电流崩塌效应对高压区 GaN-HEMT 的 $I_{d}-V_{ds}$ 特性的影响。比较了有和没有 $V_{ds}$ 偏置时测得的 $I_{d}-V_{ds}$ 特性,显示了 $V_{ds}$ 偏置引起的电荷捕获对饱和区器件 $I_{d}-V_{ds}$ 特性的影响。这些数据将用于设备模型,包括整个 $I_{d}-V_{ds}$ 区域中的当前塌陷效应。
A new method is proposed in this paper to investigate the influence of current collapse effect on the $I_{d}-V_{ds}$ characteristics of GaN-HEMTs in high voltage region based on a modified H-bridge circuit. The measured $I_{d}-V_{ds}$ characteristics with and without the $V_{ds}$ bias are compared, which shows the effect of charge trapping due to the $V_{ds}$ bias on device $I_{d}-V_{ds}$ characteristics in saturation region. These data will be used for a device model including the current collapse effect in full $I_{d}-V_{ds}$ region.