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Unformatted text preview: 13.48 a) Find the transfer function H (s) = VO/Vi for the
PSPICE circuit shown in Fig. P13.48(a). III yumvu Figure P13.48 13.49 a) Find the transfer function H (S) = VO/Vl for the
circuit shown in Fig. P13.49(a). b) Find the transfer function H (S) = Vo/Vl for the
circuit shown in Fig. P13.49(b). Figure P13.49 13.52 Find the numerical expression for the transfer func PSPICE tion (Va/Vi) of each circuit in Fig. P13.52 and give ”mg“ the numerical value of the poles and zeros of each
transfer function. Figure P13.52
2 k0 + l +
v, 20 MFI 120 (a) 13.78 The transfer function for a linear timeinvariant
circuit is
V0 25(s + 8) Hs =—=—.
() Vg sz+60s+150 If vg = 10 cos 20t V, what is the steadystate
expression for v0? 13.83 There is no energy stored in the circuit in Fig. P13.83
at the time the impulsive voltage is applied. a) Find v0(t) fort 2 0. b) Does your solution make sense in terms of
known circuit behavior? Explain. Figure P13.83
1 k!) 80 mH +
320 mH ’00 0 wow 13.86 The parallel combination of R2 and C 2 in the circuit
shown in Fig. P13.86 represents the input circuit to a
cathoderay oscilloscope (CRO). The parallel combi
nation of R1 and C1 is a circuit model of a compensat
ing lead that is used to connect the CRO to the source.
There is no energy stored in C1 or C 2 at the time when
the 10 V source is connected to the CRO Via the com pensating lead. The circuit values are C1 = 4 pF,
C2 = 16 pF,R1 = 1.25 MQ,and R2 = 5 MS). a) Find v0.
b) Find i0.
c) Repeat (a) and (b) given C1 is changed to 64 pF. Figure P13.86 ...
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 Fall '09
 Trigraph, LTI system theory

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