GATE EE 2006 | GATE EE Year Wise Previous Years Questions

GATE EE 2006

MCQ (Single Correct Answer)

-0.6

A voltage commutation circuit is shown in figure. If the turn off time of the $$SCR$$$$s$$ is $$50$$ $$\mu \sec $$ and as safety margin of $$2$$ is considered, what will be the approximate minimum value of capacitor required for proper commutation? GATE EE 2006 Power Electronics - Choppers and Commutation Techniques Question 8 English

GATE EE 2006 Power Electronics - Choppers and Commutation Techniques Question 8 English

$$2.88\,\,\mu \,F\,$$

$$1.44\,\,\mu \,F\,$$

$$0.91\,\,\mu \,F\,$$

$$0.72\,\,\mu \,F\,$$

GATE EE 2006

MCQ (Single Correct Answer)

-0.6

A voltage commutated chopper operating at $$1$$ $$kHz$$ is used to control the speed of $$dc$$ motor as shown in figure. The load current is assumed to be constant at $$10$$ $$A.$$ GATE EE 2006 Power Electronics - Choppers and Commutation Techniques Question 13 English

GATE EE 2006 Power Electronics - Choppers and Commutation Techniques Question 13 English

The minimum time in $$\mu $$ sec for which the $$SCR$$ $$M$$ should be ON is

$$280$$

$$140$$

$$70$$

$$0$$

GATE EE 2006

MCQ (Single Correct Answer)

-0.6

GATE EE 2006 Power Electronics - Choppers and Commutation Techniques Question 12 English

The average output voltage of the chopper will be

$$70$$ $$V$$

$$47.5$$

$$35$$ $$V$$

$$0$$

GATE EE 2006

MCQ (Single Correct Answer)

-0.6

An $$SCR$$ having a turn ON time of $$5\,\,\mu \,\,\sec $$, latching current of $$50$$ $$mA$$ and holding current of $$40$$ $$mA$$ is triggered by a short duration pulse and is used in the circuit shown in figure The minimum pulse width required To turn the $$SCR$$ ON will be GATE EE 2006 Power Electronics - Power Semiconductor Devices Question 5 English

GATE EE 2006 Power Electronics - Power Semiconductor Devices Question 5 English

$$251\,\,\mu \,\,\sec $$

$$150\,\,\mu \,\,\sec $$

$$100\,\,\mu \,\,\sec $$

$$5\,\,\mu \,\,\sec $$

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