The GATE Grind

GATE 2018 EE – Question 14

Power Electronics · Static V-I characteristics and firing/gating circuits for Thyristor, MOSFET, IGBT · 1 mark · Multiple choice

Four power semiconductor devices are shown in the figure along with their relevant terminals. The device(s) that can carry dc current continuously in the direction shown when gated appropriately is (are)

Diagram for GATE 2018 EE question 14
  1. Thyristor, Triac
  2. Triac, GTO
  3. Thyristor, GTO
  4. Thyristor, Triac, GTO and MOSFET

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Show answer and explanation

Correct answer: (B) Triac, GTO

Explanation

The answer follows the official key: the triac and the GTO are the devices that can carry the DC current in the direction marked in the figure once gated appropriately.