GATE EE 2015 Set 1 — Question 18
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Power Electronics → DC-DC Converters → Buck Converter
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Question
In the following chopper, the duty ratio of switch S is 0.4. If the inductor and capacitor are sufficiently large to ensure continuous inductor current and ripple free capacitor voltage, the charging current (in Ampere) of the 5 V battery, under steady-state, is_______.
Correct answer
1 to 1
Solution
The given circuit is a step-down (buck) chopper.
Input voltage, V
Duty ratio,
Average output voltage, V
The load consists of a resistor and a battery V in series.
Under steady-state, the average current flowing into the battery is:
A
Input voltage, V
Duty ratio,
Average output voltage, V
The load consists of a resistor and a battery V in series.
Under steady-state, the average current flowing into the battery is:
A
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