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.