GATE EE

Inverters

Power Electronics

(Past Years Questions)

Marks 1

More
A three-phase voltage source inverter with ideal devices operating in $${180^ \circ }$$ conduction mode is feeding a bal...
GATE EE 2017 Set 2
In the converter circuit shown below, the switches are controlled such that the load voltage $${v_0}\left( t \right)$$ i...
GATE EE 2017 Set 1
A $$3$$-phase voltage source inverter is supplied from a $$600V$$ $$DC$$ source as shown in the figure below. For a star...
GATE EE 2017 Set 1
A three-phase current source inverter used for the speed control of an induction motor is to be realized using MOSFET sw...
GATE EE 2011
A $$3$$ - phase voltage source Inverter is operated in $${180^ \circ }$$ conduction mode. Which one of the following sta...
GATE EE 2008
A three - phase fully - controlled thyristor bridge converter is used as line commuted inverter to feed $$50kW$$ power ...
GATE EE 2007
''Six $$MOSFETS$$ connected in a bridge configuration (having no other power device) MUST be operated as Voltage Source...
GATE EE 2007
The output voltage waveform of a three - phase square-wave inverter contains
GATE EE 2005
Triangular $$PWM$$ control, when applied to a $$BJT$$ based three phase voltage source inverter, introduces.
GATE EE 2000
A $$PWM$$ switching scheme is used with a three phase inverter to
GATE EE 1999
An inverter capable of supplying a balanced three - phase variable voltage variable frequency output is feeding a three ...
GATE EE 1995
A single phase Inverter with square wave output voltage will have in its output waveform a fifth harmonic component equa...
GATE EE 1995
A line - commutated inverter changes $$dc$$ voltage to $$ac$$ voltage
GATE EE 1994
When a line commutated converter operates in the inverter mode
GATE EE 1993

Marks 2

More
The figure below shows a half-bridge voltage source inverter supplying an $$RL$$-load with $$R = 40\,\,\Omega $$ and $$L...
GATE EE 2017 Set 2
The switches $$T1$$ and $$T2$$ in Figure are switched in a complementary fashion with sinusoidal pulse width modulation ...
GATE EE 2016 Set 1
The single-phase full-bridge voltage source inverter $$(VSI),$$ shown in figure, has an output frequency of $$50$$ $$Hz$...
GATE EE 2015 Set 1
A single - phase voltage source inverter shown in figure is feeding power to load. The triggering pulses of the devices ...
GATE EE 2014 Set 3
In the figure shows on period of the output voltage of an inverter. $$\alpha $$ should be chosen such that $${60^0} ...
GATE EE 2014 Set 1
The Voltage Source Inverter $$(VSI)$$ shown in the figure below is switched to provide a $$50$$ $$Hz,$$ square-wave $$ac...
GATE EE 2013
The Voltage Source Inverter $$(VSI)$$ shown in the figure below is switched to provide a $$50$$ $$Hz,$$ square-wave $$ac...
GATE EE 2013
In the $$3$$-phase inverter circuit shown, the load is balanced and the gating scheme is $${180^ \circ }$$ -conduction m...
GATE EE 2012
In the $$3$$-phase inverter circuit shown, the load is balanced and the gating scheme is $${180^ \circ }$$ -conduction m...
GATE EE 2012
The Current Source Inverter shown in Figure is operated by alternately turning on thyristor pairs $$\left( {{T_1},\,\,{T...
GATE EE 2009
A single phase voltage source inverter is feeding a purely inductive load as shown in the figure. The inverter is oper...
GATE EE 2008
A single - phase voltage source inverter is controlled in a single pulse - width modulated mode with a pulse width of $$...
GATE EE 2007
A single - phase inverter is operated in $$PWM$$ mode generating a single - pulse of width $$2d$$ in the center of each ...
GATE EE 2007
An inverter has a periodic output voltage with the output waveform as shown in figure When the conduction angle $$\alp...
GATE EE 2003
An inverter has a periodic output voltage with the output waveform as shown in figure With reference to the output wav...
GATE EE 2003
Fig. $$(a)$$ shows an inverter circuit with a $$dc$$ source voltage $${V_{s}}$$. The semiconductor switches of the inver...
GATE EE 2002
A single - phase full-bridge voltage source inverter feeds a purely inductive load, as shown in figure. when $${T_1},{T_...
GATE EE 2001
A three phase voltage source inverter supplies a purely inductive three phase load. Upon Fourier analysis, the output vo...
GATE EE 2000

Marks 5

More
A single - phase bridge inverter is fed from a $$200V$$ $$d.c$$ supply and is operated at $$50$$ $$Hz.$$ It is connected...
GATE EE 1997
Match the following $$(P)$$ single phase fully controlled $$ac-dc$$ converter $$(Q)$$ Voltage commutated $$dc-ac$$ ...
GATE EE 1995

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