Gating Effects on Thyristor Anode Current di/dt

Triggering measurements were performed on thyristors with different gate geometries at various combinations of peak gate current, gate pulsewidth, and gate di/dt, to determine the trigger dependence of pulsed anode current di/dt. Peak gate current was varied from 4 A to 12 A, gate pulse width from 250 ns to 8 μs, and leading edge di/dt from 23 A/μs to 320 A/μs. Only the peak gate current was found to affect pulsed anode current di/dt.