GATE EE
Power Electronics
Inverters
Previous Years Questions

## Marks 1

Consider an ideal full-bridge single-phase DC-AC inverter with a DC bus voltage magnitude of 1000 V. The inverter output voltage v(t) shown below, is ...
A 3-phase grid-connected voltage source converter with DC link voltage of 1000 V is switched using sinusoidal Pulse Width Modulation (PWM) technique. ...
A three-phase voltage source inverter with ideal devices operating in $${180^ \circ }$$ conduction mode is feeding a balanced star-connected resistive...
In the converter circuit shown below, the switches are controlled such that the load voltage $${v_0}\left( t \right)$$ is a $$400$$ $$Hz$$ square wave...
A $$3$$-phase voltage source inverter is supplied from a $$600V$$ $$DC$$ source as shown in the figure below. For a star connected resistive load of \$...
A three-phase current source inverter used for the speed control of an induction motor is to be realized using MOSFET switches as shown below. Switche...
A $$3$$ - phase voltage source Inverter is operated in $${180^ \circ }$$ conduction mode. Which one of the following statements is true?
A three - phase fully - controlled thyristor bridge converter is used as line commuted inverter to feed $$50kW$$ power $$420$$ $$V$$ $$dc$$ to a thre...
''Six $$MOSFETS$$ connected in a bridge configuration (having no other power device) MUST be operated as Voltage Source Inverter $$(VSI)''.$$ This st...
The output voltage waveform of a three - phase square-wave inverter contains
Triangular $$PWM$$ control, when applied to a $$BJT$$ based three phase voltage source inverter, introduces.
A $$PWM$$ switching scheme is used with a three phase inverter to
A single phase Inverter with square wave output voltage will have in its output waveform a fifth harmonic component equal to ______ percentage of the ...
An inverter capable of supplying a balanced three - phase variable voltage variable frequency output is feeding a three - phase induction motor rated ...
A line - commutated inverter changes $$dc$$ voltage to $$ac$$ voltage
When a line commutated converter operates in the inverter mode

## Marks 2

The figure below shows a half-bridge voltage source inverter supplying an $$RL$$-load with $$R = 40\,\,\Omega$$ and $$L = \left( {{{0.3} \over \pi }}... The switches$$T1$$and$$T2$$in Figure are switched in a complementary fashion with sinusoidal pulse width modulation technique. The modulating volt... The single-phase full-bridge voltage source inverter$$(VSI),$$shown in figure, has an output frequency of$$50Hz$$. It uses unipolar pulse widt... A single - phase voltage source inverter shown in figure is feeding power to load. The triggering pulses of the devices are also shown in the figure. ... In the figure shows on period of the output voltage of an inverter.$$\alpha $$should be chosen such that$${60^0} < \alpha < {90^0}.$$If$$r...
The Voltage Source Inverter $$(VSI)$$ shown in the figure below is switched to provide a $$50$$ $$Hz,$$ square-wave $$ac$$ output voltage ($${V_0}$$) ...
The Voltage Source Inverter $$(VSI)$$ shown in the figure below is switched to provide a $$50$$ $$Hz,$$ square-wave $$ac$$ output voltage ($${V_0}$$) ...
In the $$3$$-phase inverter circuit shown, the load is balanced and the gating scheme is $${180^ \circ }$$ -conduction mode. All the switching devices...
In the $$3$$-phase inverter circuit shown, the load is balanced and the gating scheme is $${180^ \circ }$$ -conduction mode. All the switching devices...
The Current Source Inverter shown in Figure is operated by alternately turning on thyristor pairs $$\left( {{T_1},\,\,{T_2}} \right)$$ and $$\left( {{... A single phase voltage source inverter is feeding a purely inductive load as shown in the figure. The inverter is operated at$$50Hz$$in$${18...
A single - phase inverter is operated in $$PWM$$ mode generating a single - pulse of width $$2d$$ in the center of each half cycle as shown in figure....
A single - phase voltage source inverter is controlled in a single pulse - width modulated mode with a pulse width of $${150^0}$$ in each half cycle. ...
An inverter has a periodic output voltage with the output waveform as shown in figure When the conduction angle $$\alpha = {120^0},$$ the $$rms$$ f...
An inverter has a periodic output voltage with the output waveform as shown in figure With reference to the output waveform given in figure, the out...
Fig. $$(a)$$ shows an inverter circuit with a $$dc$$ source voltage $${V_{s}}$$. The semiconductor switches of the inverter are operated in such a man...
A single - phase full-bridge voltage source inverter feeds a purely inductive load, as shown in figure. when $${T_1},{T_2},\,\,\,\,\,{T_3},{T_4}$$ are...
A three phase voltage source inverter supplies a purely inductive three phase load. Upon Fourier analysis, the output voltage waveform is found to hav...

## Marks 5

A single - phase bridge inverter is fed from a $$200V$$ $$d.c$$ supply and is operated at $$50$$ $$Hz.$$ It is connected to a load having a resistance...
Match the following $$(P)$$ single phase fully controlled $$ac-dc$$ converter $$(Q)$$ Voltage commutated $$dc-ac$$ chopper ($$E$$ = input $$dc$$ ...
EXAM MAP
Joint Entrance Examination
JEE MainJEE AdvancedWB JEE
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Medical
NEET
© ExamGOAL 2023