Switched Circuits with Initial Energy Storage
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Switched Circuits with Initial Energy Storage book
This chapter begins with the series and parallel connections of capacitors having initial charges and then considers the dual case of series and parallel connections of inductors having initial currents. It shows that the analysis of several types of circuits is greatly facilitated by applying the concept of equivalent capacitance and inductance. As to be expected from the linearity of the circuits under consideration, superposition can be applied to obtain the total charges of capacitors, and the total flux linkages of inductors, due to applied excitation in the presence of initial energy storage. The discussion illustrates how charge is conserved in capacitive circuits and how flux linkage is conserved in inductive circuits. The chapter examines the effect of adding resistance and demonstrates that energy can be trapped in a circuit even in the presence of resistors. It extends the analysis to responses resulting from switching operations in circuits having initial energy storage in capacitors and inductors.