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 inductor must be zero over one switching period.b.In steady state, the average current through the capacitor must be zero. c.The dc component of a converter waveform is given by the integral over one switching period, divided by the switching period.d.In steady state the average voltage across the capacitor must be zero over on switching periode.In steady state, the average current through 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 inductor must be zero over one switching period.b.In steady state, the average current through the capacitor must be zero. c.The dc component of a converter waveform is given by the integral over one switching period, divided by the switching period.d.In steady state the average voltage across the capacitor must be zero over on switching periode.In steady state, the average current through 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 inductor must be zero over one switching period. This statement is incorrect because in a DC-DC converter, the voltage across the inductor can change depending on the switching state of the converter.
d. In steady state the average voltage across the capacitor must be zero over one switching period. This statement is incorrect because the average voltage across the capacitor in steady state is not zero. It is equal to the output voltage of the converter.
e. In steady state, the average current through the Inductor must be zero over one switching period. This statement is incorrect because the average current through the inductor is not necessarily zero. It depends on the load and the duty cycle of the converter.
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