The figure below shows a half-bridge voltage source inverter supplying an RL-load with R = 40 Ω and L= $\frac{0.3}{\pi}$ 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

GATE 2018 Electrical Engineering Q39 — Electrical Engineering

GATE 2018Set CombinedQ39MCQanswer keyexplanation soonhard

Electrical Engineering · Power Electronics - Inverters

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Figure from the original GATE 2018 paper. (IIT Guwahati archive)

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Power Electronics - Inverters has appeared in GATE Electrical Engineering 8 times across 5 years (2018, 2019, 2024, 2025, 2026).

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inverterRL-loadSPWMactive powerDC voltage