SPICE CIRCUIT FILE PROGRAM LABORATORIO --- 1ª EXERCISE

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1 LABORATORIO --- 1ª Lezione EXERCISE 5-13 * Exercise 5-13, Fig. 5-36, pag VS 1 0 DC 10 R K R K R K R K VA 4 0 DC 0.DC VS PRINT DC V(2) V(3) I(VS) I(VA) PROBLEM 5-13 * Problem 5-13, Fig. P5-6, pag IS1 0 1 DC 100M IS2 4 0 DC 100M R K R K R K R K R K R K.DC IS1 100M 100M 1.PRINT DC V(2,3) I(R1) V(1) V(0,4) * La tensione Vx è data da: Vx = V(2,3) * La corrente Ix è data da: Ix = I(R1) * La potenza totale è data da: P_total = V(1)*IS1 + V(0,4)*IS2 PROBLEM 5-15 * Problem 5-15, Fig. P5-8, pag V1 1 0 DC 10 V2 2 1 DC 10 V3 4 0 DC 10 R K R K R K R K.DC V PRINT DC V(3) I(R3) I(V1) I(V2) I(V3) * Vx = V(3) --- Ix = I(R3) * P_total = - V1*I(V1) - V2*I(V2) - V3*I(V3)

2 LABORATORIO --- 1ª Lezione PROBLEM 5-7 * R.E. Thomas, A. J. Rosa, "The Analysis and Design of Linear Circuits", * Problem 5-7, Fig. P5-7, pag VS 0 3 DC -10 R K R K R K R K RX 1 2 3K.DC VS PRINT DC V(1,2) I(VS) V(3,2) * La tensione Vx è data da: Vx = V(1,2) * La corrente Ix è data da: Ix = I(Vs) * La potenza assorbita da R2 vale: P_R2 = [V(3,2)] 2 /R2 PROBLEM 5-9 *R. E. Thomas, A. J. Rosa, "The Analysis and Design of Linear Circuits", * Problem 5-9, Fig. P5-9, pag VS 4 0 DC 100 IS 1 2 DC 275M R K R K R K R K R K RX 1 3 3K.DC IS 275M 275M 1.PRINT DC V(1) I(RX) V(2,1) * La tensione Vx è data da: Vx = V(1) * La corrente Ix è data da: Ix = I(RX) * La potenza del generatore è data da: P_IS = V(2,1)*IS

3 LABORATORIO --- 2ª Lezione EXAMPLE 3.6 * Example 3.6, Fig. 3.14a & 3.14b, p I1 0 4 DC 2E-3 VS 1 0 DC 10M F1 0 3 V2 2 V2 1 2 DC 0 E V3 5 0 DC 0 R K R DC VS 10M 10M 1M.PRINT DC I(V3) V(2,3) * La tensione V è data da: V = V(2,3) * La corrente I è data da: I = I(V3) EXAMPLE 3.7 * Example 3.7, Fig. 3.15a & 3.15b, pp VS 1 0 DC 1 I1 4 1 DC 2 V3 3 4 DC 0 F1 0 4 V2 6 V2 5 0 DC 0 R R R DC VS PRINT DC I(V3) * La corrente Ix è data da: Ix = I(V3)

4 LABORATORIO --- 2ª Lezione EXAMPLE 3.8 * Example 3.8, Fig. 3.16a & 3.16b, pp * Computation of voltage V, as Vin is varied from -10 V to +30 V. VS 1 0 DC 1 G M H1 0 4 V2 700 V DC R R R K.DC V * To save output data in.out file.print DC V(1,4) * V = V(1,4) * Generate.DAT file for the waveform analyzer.probe EXAMPLE 3.9 * Example 3.9, Fig. 3.17b, pp * Plot of output voltage Vo for an op amp, as Vin is varied * from 1 mv to 500 mv. V1 2 0 DC 1 V2 1 0 DC 100M E K R R K R K R K R K R K R K.DC V1 1M 500M 1M.PRINT DC V(6) * La tensione Vo è determinata come Vo = V(6).PROBE

5 LABORATORIO --- 2ª Lezione EXAMPLE 3.10 * Example 3.10, Fig. 3.18b, pp * Computation of the input resistance of a bipolar transistor amplifier. I1 0 1 DC 1 E E-4 F1 4 5 V1 100 V1 1 2 DC 0 R K R R K R K R DC I PRINT DC V(1) * La resistenza equivalente è determinata dalla relazione: Req = V(1)/I1 = V(1) EXAMPLE 4.2 * Example 4.2, Fig. 4.7a & 4.8, pp VS 1 0 DC 10 I1 1 3 DC 2 I2 2 0 DC 8 H1 3 2 V2 4 V2 4 0 DC 0 R R DC VS PRINT DC V(2,1) I(V2) * La tensione è determinata tramite la considerazione: V = V(2,1) * La corrente è valutata tramite la relazione seguente : I = I(V2)

6 LABORATORIO --- 2ª Lezione EXERCISE 5-14 * Exercise 5-14, Fig. 5-39, p VS 1 0 DC 1 FX 3 0 VX 50 VX 5 0 DC 0 VA 4 0 DC 0 R K R K R K R K * If.DC and.print commands are not specified, all node-to-datum voltages, * and currents through voltages sources are reported in the.out file EXAMPLE 5-16 * Example 5-16, Fig. 5-41, pp * Evaluation of the input-output relationship of the circuit. VS1 1 0 DC 0 VS2 2 0 DC 0 G M G M R K R K R K R K RDS K RDS K.DC VS PRINT DC V(4) * K1 = V(4) if VS1 = 1, VS2 = 0 * K2 = V(4) if VS1 = 0, VS2 = 1 *.DC command is used to switch on the selected source.

7 LABORATORIO --- 2ª Lezione SIMULAZIONE.TF SORGENTE VS IN TENSIONE USCITA IN TENSIONE PROVA ISTRUZIONE TF VS 1 0 DC 10V VB 5 4 DC 0V F1 3 4 VB 100 RS 1 2 1K RP 2 5 1K RF K RE 4 0 1K RC K.TF V(4) VS * *V(4)/VS = 8.937E-01 *INPUT RESISTANCE AT VS = 1.026E+04 *OUTPUT RESISTANCE AT V(4) = 9.821E+01 * SORGENTE IS IN CORRENTE USCITA IN TENSIONE PROVA ISTRUZIONE TF IS 0 1 DC 10A VB 5 4 DC 0V F1 3 4 VB 100 RS 1 2 1K RP 2 5 1K RF K RE 4 0 1K RC K.TF V(4) IS * *v(4)/is = 9.167E+03 *INPUT RESISTANCE AT IS = 1.026E+04 *OUTPUT RESISTANCE AT V(4) = 9.167E+02 *

8 LABORATORIO --- 2ª Lezione SIMULAZIONE.TF SORGENTE VS IN TENSIONE USCITA IN CORRENTE PROVA ISTRUZIONE TF VS 0 1 DC 10V VB 5 4 DC 0V F1 3 4 VB 100 VC 4 6 DC 0V RS 1 2 1K RP 2 5 1K RF K RE 6 0 1K RC K.TF I(VC) VS * * I(VC)/VS = E-04 * INPUT RESISTANCE AT VS = 1.026E+04 * OUTPUT RESISTANCE AT I(VC) = 1.109E

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