Details

Autor(en) / Beteiligte

• Galigekere, Veda Prakash
• Gurpinar, Emre
• Chowdhury, Shajjad
• Pries, Jason

Titel

Suppression of Parasitic Voltage Oscillation in Power Modules by Turn-Off Current Zero Placement

Ist Teil von

• 2023 IEEE Energy Conversion Congress and Exposition (ECCE), 2023, p.5485-5490

Ort / Verlag

IEEE

Erscheinungsjahr

2023

Quelle

IEL

Beschreibungen/Notizen

• This paper presents a frequency-domain analysis of the turn-off equivalent switching network of a hard-switched semiconductor switching cell. This paper also proposes a novel method to suppress parasitic voltage ringing by placing the turn-off current zero at the parasitic resonant frequency. The turn-off current was decomposed into ramp functions and a constant-valued function to facilitate obtaining the frequency components of the turn-off current using the Laplace transform of standard signals. The proposed frequency-domain modeling of the parasitic voltage ringing and the suppression were validated by detailed circuit simulation using parameters corresponding to prior literature with experimental validation.