1
GATE EE 2017 Set 2
MCQ (Single Correct Answer)
+2
-0.6
The figure below shows a half-bridge voltage source inverter supplying an $$RL$$-load with $$R = 40\,\,\Omega $$ and $$L = \left( {{{0.3} \over \pi }} \right)H.$$ The desired fundamental frequency of the load voltage is $$50$$ $$Hz.$$ The switch control signals of the converter are generated using sinusoidal pulse width modulation with modulation index. $$M = 0.6.$$ at $$50$$ $$Hz$$, the$$RL$$-load draws an active power of $$1.44$$ $$kW.$$ The value of $$DC$$ source volts is GATE EE 2017 Set 2 Power Electronics - Inverters Question 5 English
A
$$300\,\,\sqrt 2 $$
B
$$500$$
C
$$500\,\,\sqrt 2 $$
D
$$1000\,\,\sqrt 2 $$
2
GATE EE 2016 Set 1
Numerical
+2
-0
The switches $$T1$$ and $$T2$$ in Figure are switched in a complementary fashion with sinusoidal pulse width modulation technique. The modulating voltage $${v_m}\left( t \right) = 0.8\sin \left( {200\pi t} \right)\,\,V$$ and the triangular carrier $$\left( {{V_c}} \right),$$ voltage $$\left( {{V_c}} \right)$$ are as shown in figure $$(b).$$ The carrier frequency is $$5$$ $$kHz.$$ The peak value of the $$100$$ $$Hz$$ component of the load current $$\left( {{i_L}} \right)$$ in Ampere, is ______. GATE EE 2016 Set 1 Power Electronics - Inverters Question 6 English 1 GATE EE 2016 Set 1 Power Electronics - Inverters Question 6 English 2
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3
GATE EE 2015 Set 1
Numerical
+2
-0
The single-phase full-bridge voltage source inverter $$(VSI),$$ shown in figure, has an output frequency of $$50$$ $$Hz$$. It uses unipolar pulse width modulation with switching frequency of $$50$$ $$kHz$$ and modulation index of $$0.7.$$ For
$${V_{in}} = 100\,V\,\,DC,\,\,L = 9.55\,\,mH,\,C = 63.66\,\,\mu F,$$ and $$R = 5\,\Omega ,$$ the amplitude of GATE EE 2015 Set 1 Power Electronics - Inverters Question 7 English
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4
GATE EE 2014 Set 3
MCQ (Single Correct Answer)
+2
-0.6
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. GATE EE 2014 Set 3 Power Electronics - Inverters Question 8 English 1 GATE EE 2014 Set 3 Power Electronics - Inverters Question 8 English 2

If the load current is sinusoidal and is zero at $$0,\,\,\pi ,2\pi ....,$$ the node voltage $${V_{AO}}$$ has the waveform

A
GATE EE 2014 Set 3 Power Electronics - Inverters Question 8 English Option 1
B
GATE EE 2014 Set 3 Power Electronics - Inverters Question 8 English Option 2
C
GATE EE 2014 Set 3 Power Electronics - Inverters Question 8 English Option 3
D
GATE EE 2014 Set 3 Power Electronics - Inverters Question 8 English Option 4
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