25-01-2013, 01:01 PM
SEMESTER END EXAMINATIONS - JUNE 2010
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1. a) Explain in what respects the circuit simulation softwares are useful for power (10)
electronic circuits and systems studies? Explain the use of SPICE software in
this context, stating the historical evolution of SPICE and its limitations.
b) With relevant example statements, discuss the format of circuit file and (10)
output file of PSPICE and explain the syntax regulations thereon.
2. a) Discuss PSPICE representation of Nodes, Circuit elements, Element values, (I.0)
Sources and Output variables. Give general formats and illustrative typical
statements in each case.
b) The RLC circuit of fig.2(bl) is to be simulated to calculate and plot the (10)
transient response from 0 to 2ms with an increment of 5μs. The input is a
step current, as shown in, fig.2(b2). The voltage across resistor R is the
output. The input and output voltages are to be plotted in an output file.
The results should be available for display and hard copy by the PROBE
command.