# Single and Three Phase Rectifier · Power Electronics · GATE EE

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## Marks 1

GATE EE 2022
A single-phase full-bridge diode rectifier feeds a resistive load of 50 $$\Omega$$ from a 200 V, 50 Hz single phase AC supply. If the diodes are ideal...
GATE EE 2022
The voltage at the input of an AC-DC rectifier is given by $$v(t) = 230\sqrt 2 \sin \omega t$$ where $$\omega = 2\pi \times 50$$ rad/s. The input cu...
GATE EE 2022
For the ideal AC-DC rectifier circuit shown in the figure below, the load current magnitude is Idc = 15 A and is ripple free. The thyristors are fired...
GATE EE 2018
The waveform of the current drawn by a semi-converter from a sinusoidal AC voltage source is shown in the figure. If I0 = 20 A, the rms value of funda...
GATE EE 2018
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. W...
GATE EE 2017 Set 2
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
A phase-controlled, single-phase, full-bridge converter is fed from a $$230$$ $$V,$$ $$50$$ $$Hz,$$ $$AC$$ source. The fundamental frequency in $$Hz$$...
GATE EE 2017 Set 2
The figure below shows the circuit diagram of a controlled rectifier supplied from a $$230V,$$ $$50$$ $$Hz,$$ $$1$$-phase voltage source and a $$10:1... GATE EE 2012 A half-controlled single-phase bridge rectifier is supplying an$$R$$-$$L$$load. It is operated at a firing angle$$α$$and the load current is conti... GATE EE 2010 The fully controlled thyristor converter in the figure is fed from a single-phase source. When the firing angle is$${0^ \circ }$$, the$$dc$$output ... GATE EE 2007 A single$$-$$phase fully controlled thyristor bridge$$ac-dc$$converter is operating at a firing angle of$${25^ \circ }$$and an overlap... GATE EE 2007 A single phase full$$-$$wave half$$-$$controlled bridge converter feeds an inductive load. The two$$SCR's$$in the converter are connected to a c... GATE EE 2006 A single$$-$$phase half wave uncontrolled converter circuit is shown in figure. A$$2$$-winding transformer is used at the input for isolation. Ass... GATE EE 2005 A three - phase diode bridge rectifier is fed from a$$400VRMS$$.$$50Hz$$, three$$-$$phase$$AC$$source. If the load is purely resi... GATE EE 2004 The circuit in figure shows a full-wave rectifier. The input voltage is$$230V(rms)$$single-phase ac. The peak reverse voltage across the d... GATE EE 2004 The circuit in figure shows a$$3-$$phase half$$-$$wave rectifier. The source is a symmetrical,$$3-$$phase four$$-$$wire system. The ... GATE EE 2003 A fully controlled natural commuted$$3$$-phase bridge rectifier is operating with a firing angle$$\alpha = {30^0}.$$The peak to peak voltage rippl... GATE EE 2002 A six pulse thyristor rectifier bridge is connected to a balanced$$50Hz$$three phase$$ac$$source. Assuming that the$$dc$$output current of the r... GATE EE 2001$$AC$$to$$DC$$circulating current dual converters are operated with the following relationship between their triggering angles$$\left( {{\alpha _1...
GATE EE 2000
A thyristorised three phase fully controlled converter feeds a $$dc$$ load that draws a constant current. Then the input $$ac$$ line current to the co...
GATE EE 1999
Resonant Converter's are basically used to
GATE EE 1997
In a dual converter, the circulating current
GATE EE 1996
In a $$3$$ - phase controlled bridge rectifier, with an increase of overlap angle the output $$dc$$ voltage
GATE EE 1995
A three phase $$ac$$-to-$$dc$$ diode bridge rectifier is supplied from a three-phase, $$440V$$ source. The rectifier supplies a purely resistive load....
GATE EE 1995
A single phase diode bridge rectifier supplies a highly inductive load. The load current can be assumed to be ripple free. The ac supply side current ...
GATE EE 1994
The output voltage of a six - pulse double star rectifier is the same as that of a three - phase half wave rectifier
GATE EE 1994
Referring to the figure the type of load is ...
GATE EE 1992
In the circuit shown in fig, $$L$$ is large and the average value of $$'i'$$ is $$100A.$$ The thyristor is gated in the half cycle of $$'e'$$ at a del...

## Marks 2

GATE EE 2018
A phase controlled single phase rectifier, supplied by an AC source, feeds power to an R-L-E load as shown in the figure. The rectifier output voltage...
GATE EE 2017 Set 1
The figure below shows an uncontrolled diode bridge rectifier supplied form a $$220$$ Z$$V,$$ $$50$$ $$Hz,$$ $$1$$-phase $$ac$$ source. The load draws...
GATE EE 2016 Set 2
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