Advantages and disadvantages of Gate turn OFF thyristor (GTO)

There are some advantages of gate turn OFF thyristor (GTO) are given below,

  • The gate turn OFF thyristor (GTO) has more di/dt ratings at turn ON.
  • It has faster turn OFF permitting high switching frequencies.
  • The communication circuit is not required, hence it reduced size, weight and cost.
  • It has high efficiency.
  • It has high capability of blocking voltage.

There are some disadvantages of gate turn OFF thyristor (GTO) are given below,

  • In a gate turn OFF thyristor (GTO), ON state voltage drop and the associated loss is more.
  • Gate drive circuit losses are more.
  • In a gate turn OFF thyristor (GTO), magnitude of latching and holding current is more.
  • Triggering gate current is higher as compared to the current required for a conventional SCR.
Gate turn OFF thyristor

Gate turn OFF thyristor

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