Problem 8.5 - Transient Response with a Dependent Source
*
* The circuit is a frequency-scaled version of textbook Chap. 8,
* Problem 47.
* The excitation source goes to zero but remains in the circuit
* as an ammeter to measure the current controlling the CCCS.
* ===> BE CAREFUL OF THE POLARITIES OF THE VOLTAGE AND CURRENT.
*
VS ??? ??? DC 0 ; Enter node numbers for current measuring
; voltage source.
F1 0 1 VS ??? ; Enter gain of controlled source. Whether
; the gain is positive or negative depends
; upon your choice of +/- nodes for VS.
R12 1 2 RMOD 1
L1 1 0 .1M IC=20
C1 1 0 100U IC=10
.MODEL RMOD RES(R=1)
.STEP RES RMOD(R) 25 325 150
.TRAN ??? 5M ??? ??? UIC
; Enter the parameters for the .TRAN command.
; TFINAL should be approximately four times
; the period of the undamped natural
; frequency, or 4/(natural frequency in Hz).
; TSTEP should be TFINAL/40, and the maximum
; step size should be about TFINAL/100.
; Add .PRINT and/or .PLOT commands as desired.
.PROBE
.END