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Research of IGBT Gate Oscillation Mechanism and Suppression Methods
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Junkun ZHANG1, Ertao LEI1, Li JIN1, Kai MA1, Chenyang XIA2, Xirui WANG2
Electric Drive | 2025, 55(3) : 35 - 42
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Electric Drive | 2025, 55(3): 35-42
Research of IGBT Gate Oscillation Mechanism and Suppression Methods
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Junkun ZHANG1, Ertao LEI1, Li JIN1, Kai MA1, Chenyang XIA2, Xirui WANG2
Affiliations
  • 1 Electric Power Research Institute of Guangdong Power Grid Co.，Ltd.，Guangzhou 510000，Guangdong，China
  • 2 School of Electrical Engineering，China University of Mining and Technology，Xuzhou 221116，Jiangsu，China
Published: 2025-03-20 doi: 10.19457/j.1001-2095.dqcd25387
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The rapid development of modern power electronics technology promotes the insulated gate bipolar transistor （IGBT）wide range of applications in the AC motor drive，inverter，switching power supply and new energy industry. In the application process of IGBT，due to the complex and varied circuit topology and system conditions，the problem of gate waveform oscillation usually exists. How to understand the oscillation mechanism and suppress methods becomes the basis of IGBT security and stability application. According to the IGBT internal parasitic parameter structure and switching process，the IGBT gate turn-on oscillation，turn-off oscillation and short-circuit oscillation were introduced in detail，the mathematical model of the gate oscillation process and the oscillation of the radio frequency （RF）positive feedback oscillation （turn-off oscillation and short-circuit oscillation） were deduced. The corrective measures of adding negative feedback or decreasing the positive feedback gain were put forward. By improving the experiment of different oscillations，the effectiveness of the suppression measures was verified，and the stability and reliability of IGBT application were improved.

insulated gate bipolar transistor （IGBT）  /  gate oscillation mechanism  /  suppression methods  /  positive feedback
Junkun ZHANG, Ertao LEI, Li JIN, Kai MA, Chenyang XIA, Xirui WANG. Research of IGBT Gate Oscillation Mechanism and Suppression Methods[J]. Electric Drive, 2025 , 55 (3) : 35 -42 . DOI: 10.19457/j.1001-2095.dqcd25387
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Year 2025 volume 55 Issue 3
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Article Info
doi: 10.19457/j.1001-2095.dqcd25387
  • Receive Date：2023-09-23
  • Online Date：2025-11-26
  • Published：2025-03-20
Article Data
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History
  • Received：2023-09-23
  • Revised：2023-11-06
Funding
Affiliations
    1 Electric Power Research Institute of Guangdong Power Grid Co.，Ltd.，Guangzhou 510000，Guangdong，China
    2 School of Electrical Engineering，China University of Mining and Technology，Xuzhou 221116，Jiangsu，China
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