Related Questions2 Items
Q1.MCQ
The input voltage $v(t)$ and current $i(t)$ of a converter are given by,
$v(t) = 300 \sin(\omega t)\text{ V}$
$i(t) = 10 \sin\left(\omega t - \frac{\pi}{6}\right) + 2 \sin\left(3\omega t + \frac{\pi}{6}\right) + \sin\left(5\omega t + \frac{\pi}{2}\right)\text{ A}$
where, $\omega = 2\pi \times 50\text{ rad/s}$. The input power factor of the converter is closest to
Q2.NUMERICAL
In the circuit with ideal devices, the power MOSFET is operated with a duty cycle of $0.4$ in a switching cycle with $I = 10\text{ A}$ and $V = 15\text{ V}$. The power delivered by the current source, in $\text{W}$, is \\\\\\\\\\\ (round off to the nearest integer).
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Electrical and Electronic EngineeringPower ElectronicsMultiple Choice (MCQ)2 Marks
Q1.
The input voltage v(t) and current i(t) of a converter are given by, v(t)=300sin(ωt) V i(t)=10sin(ωt−6π)+2sin(3ωt+6π)+sin(5ωt+2π) A where, ω=2π×50 rad/s. The input power factor of the converter is closest to
A
0.845
B
0.867
C
0.887
D
1.0