If a Gate Turn-Off Thyristor (GTO) is operated in a DC chopper circuit without a protective snubber circuit, device failure during the turn-off phase will primarily result from:

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Physics · Power Electronics

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Localized hot-spot formation caused by current tailing effects under high voltage voltage stress

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Answer 1

Symmetric avalanche breakdown of the reverse gate-cathode junction

Answer 2

High di/dt stresses generated during the initial turn-on period

Answer 3

Four-layer latch-up due to strong internal regenerative feedback

Answer 4

Localized hot-spot formation caused by current tailing effects under high voltage voltage stress

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