GATE EE 1997 | Power Semiconductor Devices Question 29 | Power Electronics

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GATE EE 1997

MCQ (Single Correct Answer)

-0.3

If a diode is connected in anti - parallel with a thyristor, then

Both turn off power loss and turn off time decreases

Turn-off power loss decreases but turn - off -time increases

Turn-off power loss increases, but turn off time decreases

None of the above

GATE EE 1996

MCQ (Single Correct Answer)

-0.3

Which semiconductor power device out of the following is not a current triggered device?

Thyristor

$$G.T.O$$

Triac

$$MOSFET$$

GATE EE 1996

MCQ (Single Correct Answer)

-0.3

The Triac can be used only in

Inverter

Rectifier

Multiquadrant chopper

Cycloconverter

GATE EE 1996

MCQ (Single Correct Answer)

-0.3

Which of the following does not cause permanent damage of an $$SCR?$$

High current

High rate of rise of current

High temperature rise

High rate of rise of voltage

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Electromagnetic Fields

Time Varying Fields Electrostatics Magnetostatics

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Linear Time Invariant Systems Continuous and Discrete Time Signals Continuous Time Signal Fourier Transform Continuous Time Periodic Signal Fourier Series Discrete Time Signal Z Transformation Miscellaneous Continuous Time Signal Laplace Transform Sampling Theorem

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Verbal Ability Logical Reasoning Numerical Ability

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Parameters and Performance of Transmission Lines Power Generation Cost Power System Stability Symmetrical Components and Symmetrical and Unsymmetrical Faults Circuit Breaker Switch Gear and Protection Per Unit System Load Flow Studies High Voltage Dc Transmission Generating Power Station

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Diode Circuits and Applications Frequency Response Bjt and Mosfet Biasing 555 Timer Feedback Amplifiers and Oscillator Circuits Operational Amplifier Small Signal Modeling

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Digital Electronics

Sequential Circuits Microprocessor Boolean Algebra Analog to Digital and Digital to Analog Converter Combinational Circuits Minimization Logic Families and Memories Logic Gates

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