GATE EE 2018 | Single and Three Phase Rectifier Question 9 | Power Electronics

GATE EE 2018

MCQ (Single Correct Answer)

-0.33

A single phase fully controlled rectifier is supplying a load with an anti-parallel diode as shown in the figure. All switches and diodes are ideal. Which one of the following is true for instantaneous load voltage and current? GATE EE 2018 Power Electronics - Single and Three Phase Rectifier Question 8 English

GATE EE 2018 Power Electronics - Single and Three Phase Rectifier Question 8 English

$${v_0} \ge 0\,\,\& \,\,{i_0} < 0$$

$${v_0} < 0\,\,\& \,\,{i_0} < 0$$

$${v_0} \ge 0\,\,\& \,\,{i_0} \ge 0$$

$${v_0} < 0\,\,\& \,\,{i_0} \ge 0$$

GATE EE 2017 Set 2

MCQ (Single Correct Answer)

-0.3

In the circuit shown, the diodes are ideal, the inductance is small, and $${{\rm I}_0} \ne 0.$$ Which one of the following statements is true? GATE EE 2017 Set 2 Power Electronics - Single and Three Phase Rectifier Question 46 English

GATE EE 2017 Set 2 Power Electronics - Single and Three Phase Rectifier Question 46 English

$${D_1}$$ conducts for greater than $${180^ \circ }$$ and $${D_2}$$ conducts for greater than $${180^ \circ }$$

$${D_2}$$ conducts for more than $${180^ \circ }$$ and $${D_1}$$ conducts for $${180^ \circ }$$

$${D_1}$$ conducts for $${180^ \circ }$$ and $${D_2}$$ conducts for $${180^ \circ }$$

$${D_1}$$ conducts for more than $${180^ \circ }$$ and $${D_2}$$ conducts for $${180^ \circ }$$

GATE EE 2017 Set 2

MCQ (Single Correct Answer)

-0.3

A phase-controlled, single-phase, full-bridge converter is fed from a $$230$$ $$V,$$ $$50$$ $$Hz,$$ $$AC$$ source. The fundamental frequency in $$Hz$$ of the voltage ripple on the $$DC$$ side is

$$25$$

$$50$$

$$100$$

$$300$$

GATE EE 2017 Set 2

Numerical

-0

The figure below shows the circuit diagram of a controlled rectifier supplied from a $$230V,$$ $$50$$ $$Hz,$$ $$1$$-phase voltage source and a $$10:1$$ ideal transformer. Assume that all devices are ideal. The firing angles of the thyristors $${T_1}$$ and $${T_2}$$ are $${90^ \circ }$$ and $${270^ \circ },$$ respectively. GATE EE 2017 Set 2 Power Electronics - Single and Three Phase Rectifier Question 44 English