GATE EE 2017 Set 2 — Question 16
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.NAT+1 / -0HardSemi & Full Converters (1φ)AC-DC ConvertersPower Electronics
Power Electronics → AC-DC Converters → Semi & Full Converters (1φ)
Last updated
Question
The figure below shows the circuit diagram of a controlled rectifier supplied from a , 1-phase voltage source and a ideal transformer. Assume that all devices are ideal. The firing angles of the thyristors and are and , respectively.
The RMS value of the current through diode in amperes is _______
The RMS value of the current through diode in amperes is _______
Correct answer
0 to 0
Solution
In the given circuit, is a freewheeling diode connected in parallel with a purely resistive load . For a freewheeling diode to conduct, the output voltage must tend to become negative (due to inductive energy storage). However, since the load is purely resistive, the output current follows the output voltage exactly and becomes zero when the supply voltage reaches zero. There is no stored energy to maintain current flow during the zero-voltage periods, and the output voltage never goes negative. Therefore, the diode never conducts, and the RMS value of the current through it is .
Continue learning with Success Tracker
A step still unclear? Work through it with support
Use Success Tracker to ask about the reasoning, then try another GATE EE question to check your understanding.
AI-powered practice· Unlimited practice on eligible plans
- PYQs with solutions
- Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
- Practice that adapts
- Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
- AI doubt support
- Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.
Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.
This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.
More questions on AC-DC Converters
2026 Set 1 Q27The figure shows a straight-line approximation for the forward characteristics of a power diode. A…2026 Set 1 Q28Consider the circuit shown in Figure (a). A gate pulse is applied between time instants …2026 Set 1 Q34Consider the circuit shown. Assume that the diode is ideal. The supply voltage…2026 Set 1 Q47Consider the single-phase voltage source inverter circuit feeding an inductive load (). Assume…2026 Set 1 Q48Consider the boost converter circuit shown. Assume that the semiconductor devices are ideal. In…