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GATE Electrical Engineering (EE) 2017 Shift 2 Solved Paper
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© examsnet.com
Question : 49
Total: 65
The figure below shows a half-bridge voltage source inverter supplying an RL-load with R = 40 Ω and
L
=
(
0.3
π
)
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 voltage V
DC
in volts is
300
√
2
500
500
√
2
1000
√
2
Validate
Solution:
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