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Modele SPICE

Tema de casStudent: Ciurea Ileana Mihaela Facultatea: Electronic, Comunicaii i CalculatoareSpecializarea: R.S.T. 2.2.1Profesor ndrumtor: Rducu P. MarianTema de cas

a) Se va alege o schem electric ce cuprinde cel puin dou tranzistoare.

b) Se vor efectua urmtoarele tipuri de analize:

.DC;

.AC;

.TRAN;

.TF;

.FOUR;

o analiz parametric.

c) Se vor utiliza 5 setrii ale instruciunii OPTION.

d) Analiza .DC se va efectua la 3 temperaturi.

e) Pentru analiza .TRAN se vor utiliza urmtoarele tipuri de semnale de intrare:

Sinusoidal;

Definit prin puncte;

Impulsuri periodice.1. Utilizarea a 5 setri ale instruciunii OPTION

Fig. 1. Setarea a 5 setri ale instruciunii .OPTION

Fig. 2. Schema amplificatorului diferenial care a fost simulatFiierul SPICE de intrare:

CIRCUIT DESCRIPTION

*Analysis directives:

.DC LIN V_VIN -100m 100m 0.0001

.TEMP 0 50 100

.PROBE V(*) I(*) W(*) D(*) NOISE(*)

V_VIN N05310 N04263 50mVdc

R_R1 N04624 N04113 10k TC=0,0

R_R3 N04105 N04157 10 TC=0,0

R_R2 N04367 N04113 10k TC=0,0

V_VBB N04263 0 25Vdc

I_J N04157 0 DC 15mAdc

R_R4 N04157 N04109 10 TC=0,0

V_VCC N04113 0 100Vdc

R_R5 N04263 N05186 5K TC=0,0

R_R6 N05310 N04123 5K TC=0,0

Q_Q1 N04624 N04123 N04105 BC239BP/ZTX

Q_Q2 N04367 N05186 N04109 BC239BP/ZTX

.END

Fig. 3.Vizualizarea tensiunii Vo n funcie de Vinla temperaturile t1 = 0C, t2 = 50C si t3 = 100C

Fig. 4.Vizualizarea curenilor de colector n funcie de Vin

la temperaturiile t1 = 0C, t2 = 50C si t3 = 100C

2. Analiza de curent alternativ

Fig. 5. Schema amplificatorului diferenial care a fost simulatFiierul SPICE de intrare:CIRCUIT DESCRIPTION


.AC DEC 100 1 10G


R_R1 N04624 N04113 10k TC=0,0

R_R3 N04105 N04157 10 TC=0,0

R_R2 N04367 N04113 10k TC=0,0



R_R4 N04157 N04109 10 TC=0,0

V_VCC N04113 0 100Vdc

R_R5 N04263 N05186 5K TC=0,0

R_R6 N05310 N04123 5K TC=0,0

Q_Q1 N04624 N04123 N04105 BC239BP/ZTX

Q_Q2 N04367 N05186 N04109 BC239BP/ZTX

V_V1 N05310 N04263 DC 0Vdc AC 100mVac

**** RESUMING bias.cir ****

.END

Fig. 6.Vizualizarea tensiunii Vo

Fig. 7.Vizualizarea amplificrii in functie de frecven

Fig. 8.Vizualizarea curenilor de colector

3. Analiza tranzitorie

3.1. Pentru o surs de semnal sinusoidal Fig. 9.Schema circuitului simulat

Fiierul SPICE de intrare:

CIRCUIT DESCRIPTION


.TRAN 0 10ms 0 100n

.PROBE V(*) I(*) W(*) D(*) NOISE(*) R_R1 N04624 N04113 10k TC=0,0

R_R3 N04105 N04157 10 TC=0,0

R_R2 N04367 N04113 10k TC=0,0



R_R4 N04157 N04109 10 TC=0,0

V_VCC N04113 0 100Vdc

R_R5 N04263 N05186 5K TC=0,0

R_R6 N05310 N04123 5K TC=0,0

Q_Q1 N04624 N04123 N04105 BC239BP/ZTX

Q_Q2 N04367 N05186 N04109 BC239BP/ZTX

V_VIN N05310 N04263

+SIN 0 100m 1k 0 0 0

**** RESUMING bias.cir ****

.END

Fig. 10. Vizualizarea tensiunii Vi

Fig. 11. Vizualizarea tensiunii Vo

Fig. 12. Vizualizarea tensiunilor de colector

Fig. 13. Vizualizarea curenilor de colector

4.2.Pentru o surs de semnal definit prin puncte Fig. 14. Schema circuitului simulatFiierul SPICE de intrare:

CIRCUIT DESCRIPTION


.TRAN 0 50ms 0 100n


.INC "..\SCHEMATIC1.net"

R_R1 N04624 N04113 10k TC=0,0

R_R3 N04105 N04157 10 TC=0,0

R_R2 N04367 N04113 10k TC=0,0



R_R4 N04157 N04109 10 TC=0,0

V_VCC N04113 0 100Vdc

R_R5 N04263 N05186 5K TC=0,0

R_R6 N05310 N04123 5K TC=0,0

Q_Q1 N04624 N04123 N04105 BC239BP/ZTX

Q_Q2 N04367 N05186 N04109 BC239BP/ZTX

V_V1 N05310 N04263

+PWL 3m -3 7m 0 10m 2 15m 7 20m 9 25m 10 33m 2 50m 6

.END

Fig. 15. Vizualizarea tensiunii Vin i Vo

4.3. Pentru o surs de semnal de tip pulsatorm

Fig. 16. Schema circuitului simulatFiierul SPICE de intrare:

CIRCUIT DESCRIPTION


.TRAN 0 50ms 0 100n

.FOUR 1k 5 V([N04624]) V([N04367])


.INC "..\SCHEMATIC1.net"

R_R1 N04624 N04113 10k TC=0,0

R_R3 N04105 N04157 10 TC=0,0

R_R2 N04367 N04113 10k TC=0,0



R_R4 N04157 N04109 10 TC=0,0

V_VCC N04113 0 100Vdc

R_R5 N04263 N05186 5K TC=0,0

R_R6 N05310 N04123 5K TC=0,0

Q_Q1 N04624 N04123 N04105 BC239BP/ZTX

Q_Q2 N04367 N05186 N04109 BC239BP/ZTX

V_VIN N05310 N04263

+PULSE -10 3 3m 8m 6m 3m 10m

.END

Fig. 17. Vizualizarea tensiunii Vin i Vo5. Analiza .TF Fig. 18. Schema amplificatorului diferenial care a fost simulatSMALL-SIGNAL CHARACTERISTICS

V(N04367,N04624)/V_VIN = -4.001E-03 INPUT RESISTANCE AT V_VIN = 7.533E+03 OUTPUT RESISTANCE AT V(N04367,N04624) = 4.295E+016. Analiza FOURIER Fig. 19.Schema circuitului simulat

FOURIER ANALYSIS TEMPERATURE = 27.000 DEG C

FOURIER COMPONENTS OF TRANSIENT RESPONSE V(N04624) DC COMPONENT = 2.426291E+01 HARMONIC FREQUENCY FOURIER NORMALIZED PHASE NORMALIZED

NO (HZ) COMPONENT COMPONENT (DEG) PHASE (DEG) 1 1.000E+03 6.873E-04 1.000E+00 -1.795E+02 0.000E+00

2 2.000E+03 3.279E-04 4.771E-01 1.788E+02 5.378E+02

3 3.000E+03 2.114E-04 3.076E-01 -1.766E+02 3.619E+02

4 4.000E+03 1.672E-04 2.432E-01 -1.763E+02 5.417E+02

5 5.000E+03 1.302E-04 1.895E-01 -1.770E+02 7.205E+02 TOTAL HARMONIC DISTORTION = 6.460132E+01 PERCENT**** FOURIER ANALYSIS TEMPERATURE = 27.000 DEG C

FOURIER COMPONENTS OF TRANSIENT RESPONSE V(N04367) DC COMPONENT = 3.772165E+01 HARMONIC FREQUENCY FOURIER NORMALIZED PHASE NORMALIZED

NO (HZ) COMPONENT COMPONENT (DEG) PHASE (DEG) 1 1.000E+03 1.462E-01 1.000E+00 -1.800E+02 0.000E+00

2 2.000E+03 7.319E-02 5.005E-01 -1.799E+02 1.801E+02

3 3.000E+03 4.883E-02 3.339E-01 1.800E+02 7.200E+02

4 4.000E+03 3.658E-02 2.502E-01 1.800E+02 9.000E+02

5 5.000E+03 2.928E-02 2.002E-01 -1.800E+02 7.200E+02 TOTAL HARMONIC DISTORTION = 6.816703E+01 PERCENT

7. Analiza parametric Fig. 20. Schema circuitului simulat

Fiierul SPICE de intrare:

CIRCUIT DESCRIPTION


.TRAN 0 50ms 0 100n

.FOUR 1k 5 V([N04624]) V([N04367])

.STEP PARAM VBB LIST 0 25 50 75


R_R1 N04624 N04113 10k TC=0,0

R_R3 N04105 N04157 10 TC=0,0

R_R2 N04367 N04113 10k TC=0,0

V_VBB N04263 0 {VBB}


R_R4 N04157 N04109 10 TC=0,0

V_VCC N04113 0 100Vdc

R_R5 N04263 N05186 5K TC=0,0

R_R6 N05310 N04123 5K TC=0,0

Q_Q1 N04624 N04123 N04105 BC239BP/ZTX

Q_Q2 N04367 N05186 N04109 BC239BP/ZTX

V_VIN N05310 N04263

+PULSE -2 3 3m 8m 6m 3m 10m

.PARAM vbb=25v

.END

Fig. 21. Vizualizarea tensiunii de ieire Vo in funcie de Vin

la diferite valori ale tensiunii VBB (0V 25V 50V 75V)

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