Consider the boost converter shown. Switch $Q$ is operating at 25 kHz with a duty cycle of 0.6 . Assume the diode and switch to be ideal. Under steady-state condition, the average resistance $R_{\text {in }}$ as seen by the source is $\_\_\_\_$ $\Omega$. (Round off to 2 decimal places)
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2
GATE EE 2021
Numerical
+2
-0
Consider the buck-boost converter shown. Switch $Q$ is operating at 25 kHz and 0.75 duty-cycle. Assume diode and switch to be ideal. Under steady-state condition, the average current flowing through the inductor is $\_\_\_\_$ A.
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3
GATE EE 2018
Numerical
+2
-0
The figure shows two buck converters connected in parallel. The common input dc voltage
for the converters has a value of 100 V. The converters have inductors of identical value.
The load resistance is 1 $$\Omega $$. The capacitor voltage has negligible ripple. Both converters
operate in the continuous conduction mode. The switching frequency is 1 kHz, and the
switch control signals are as shown. The circuit operates in the steady state. Assuming that
the converters share the load equally, the average value of $${i_{S1}}$$, the current of switch S1 (in
Ampere), is _____ (up to 2 decimal places).
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4
GATE EE 2018
Numerical
+2
-0
A dc to dc converter shown in the figure is charging a battery bank, B2 whose voltage is
constant at 150 V. B1 is another battery bank whose voltage is constant at 50 V. The value
of the inductor, L is 5 mH and the ideal switch, S is operated with a switching frequency of
5 kHz with a duty ratio of 0.4. Once the circuit has attained steady state and assuming the
diode D to be ideal, the power transferred from B1 to B2 (in Watt) is ___________ (up to 2
decimal places).
