Consider the following statements with regard to a GTO:

1. The turn-off gain of the GTO is large.

2. Large negative gate current pulses are required to turn off the GTO.

3. GTO has a large reverse blocking capability.

Which of the above statements is/are correct?

This question was previously asked in
ESE Electrical 2017 Official Paper
View all UPSC IES Papers >
  1. 1 only
  2. 2 only
  3. 3 only
  4. 1, 2 and 3

Answer (Detailed Solution Below)

Option 2 : 2 only
Free
ST 1: UPSC ESE (IES) Civil - Building Materials
6.5 K Users
20 Questions 40 Marks 24 Mins

Detailed Solution

Download Solution PDF
  • GTO is a four-layer, three junction semiconductor device with three external terminals, namely, the anode, the cathode and the gate.
  • The main advantage of the GTO over the SCR is that it can be turned on or off by applying the proper pulse to the gate.
  • The capability of the GTO to be turned on by a gate signal and also turned-off by a gate signal of negative polarity give it a unique capability within the thyristor family of devices.
Latest UPSC IES Updates

Last updated on Jul 2, 2025

-> ESE Mains 2025 exam date has been released. As per the schedule, UPSC IES Mains exam 2025 will be conducted on August 10. 

-> UPSC ESE result 2025 has been released. Candidates can download the ESE prelims result PDF from here.

->  UPSC ESE admit card 2025 for the prelims exam has been released. 

-> The UPSC IES Prelims 2025 will be held on 8th June 2025.

-> The selection process includes a Prelims and a Mains Examination, followed by a Personality Test/Interview.

-> Candidates should attempt the UPSC IES mock tests to increase their efficiency. The UPSC IES previous year papers can be downloaded here.

Get Free Access Now
Hot Links: teen patti lucky teen patti master download teen patti game online yono teen patti teen patti customer care number