Electronic Design

Whitepaper: Mitigation Methods for Parasitic Turn-on effect due to Miller Capacitor

Sponsored by: Avago

One of the common problems faced when switching an IGBT is parasitic turn-on due to Miller capacitor. This effect is noticeable in single supply gate driver (0 to +15V). Due to this gate-collector coupling, a high dV/ dt transient created during IGBT turn-off can induce parasitic turn-on (Gate voltage, VGE) which is potentially dangerous. This paper discusses classical solutions to the above problem.

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