Assuming that i(0) = 10 A, plot the zero-input response i(t) in the circuit of Fig. D.30 for 0

Question

Assuming that i(0) = 10 A, plot the zero-input response i(t) in the circuit of Fig. D.30 for 0 < t < 4 s using PSpice.

Accepted Answer

The circuit is the same as the one for Example 7.3, where we obtained the solution as

[latex]i(t)=10 e^{(-2 / 3) t}[/latex]

For PSpice analysis, the schematic is in Fig. D.31, where the current-controlled source H1 has been wired to agree with the circuit in Fig. D.30. The voltage of H1 is 3 times the current through inductor L1. Therefore, for H1, we set GAIN = 3 and for the inductor L1, we set the initial condition IC = 10. Using the Analysis/Setup/Transient dialog box, we set Print Step = 0.25s and Final Time = 4s. After simulating the circuit, the output is taken as the inductor current i(t), which is plotted in Fig. D.32.

Question D.4: Assuming that i(0) = 10 A, plot the zero-input response i(t)...

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