Which of the following statements is/are incorrect about DC-DC converter-Select one or more:a.In steady state the average voltage across the capacitor must be zero over on switching periodb.The dc component of a converter waveform is given by the integral over one switching period, divided by the switching period.c.In steady state, the average current through the Inductor must be zero over one switching period.d.In steady state, the average current through the capacitor must be zero. e.In steady state, the average voltage across the inductor must be zero over one switching period.
Question
Which of the following statements is/are incorrect about DC-DC converter-Select one or more:a.In steady state the average voltage across the capacitor must be zero over on switching periodb.The dc component of a converter waveform is given by the integral over one switching period, divided by the switching period.c.In steady state, the average current through the Inductor must be zero over one switching period.d.In steady state, the average current through the capacitor must be zero. e.In steady state, the average voltage across the inductor must be zero over one switching period.
Solution
The incorrect statements about DC-DC converter are:
a. In steady state the average voltage across the capacitor must be zero over one switching period. This statement is incorrect because in steady state, the average voltage across the capacitor is not zero. It is equal to the DC input voltage.
c. In steady state, the average current through the Inductor must be zero over one switching period. This statement is incorrect because in steady state, the average current through the inductor is not zero. It is constant and equal to the DC input current.
d. In steady state, the average current through the capacitor must be zero. This statement is incorrect because in steady state, the average current through the capacitor is not zero. It is equal to the DC input current.
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