anjali pspice

A

LAB RECORD OF

SIMULATION LAB

(EEE- 351)

UNITTED INSTITUTE OF

TECHNOLOGY

SUBMITTED BY: SUBMITTED TO :

Anjali Priya. Roll no.1228421004 EN,IInd year.

ANJALI PRIYA Mr. RUDRA MISHRA1228421004 (“EN “ II yr.) (Electrical Dept.)



EXP. No. EXPERIMEN DATE TEACHER’sSIGNATURE

TEACHER’s REMARK

1 Determination of Thevenin eqt. Of a resistive circuit.

02/02/2014

2. Determination of transient response of a parallel RLC circuit with step input voltage.

20/02/2014

3 Determination of current in a resistive circuit.

20/02/2014

4. Determination of transient response of a series RLC circuit with alternating square waveform.

25/10/2014

5. Determination of frequency response of a circuit with sinusoidal input voltage.

5/02/2014

6. Determination of transient response of series RLC circuit with step input voltage.

7/03/2014

Date 02/02/2014

EXPERIMENT NO.1

AIM- To detemine the Thevenin equivalent circuit of a resistive network.

SOFTWARE USED :- Orcad (PSPICE STUDENT’s VERSION).

THEORY: - According to thevenin theorem an intricate resistive netwok with voltage source (excitation source) and a load can be trnsformed into a simpler one by replacing it with a Thevenin voltage (Vth) and Thevenin equivalent resistance and a load across which response (load current) is to be d etermined.This is practically examined with the help of PSPICE.

R 2

3

21

R 3

32

1

R 4

52

1V 1

4 0

R 1

3

21

STEP 1 - The thevenin voltage (vth) is dteremined.


R 3

313 3 . 3 W

6 . 6 6 7 A

2

1

0

V 14 0 -2 6 6 .7 W

6 . 6 6 7 A

R 1

3

1 3 3 . 3 W6 . 6 6 7 A

21

0 V

4 0 . 0 0 V 2 0 . 0 0 VV

Date 2/02/2014

Thevenin voltage(Vth)=20V

STEP2- Thevenin’s equivalent resistance is determined

.

Thevenin equivalent resistance =4.5ohm.

EQUIVALENT THEVENIN CIRCUIT:-

0

R 7

5

2 . 10 5 A

2

1

R 6

4 . 52 . 1 0 5 A21

V 22 0

2 . 1 0 5 A


0

0 V

R 5

3 1 . 0 0 0 A21

4 . 5 0 0 V

R 1

3 5 0 0 . 0 m A21

R 3

3

5 0 0 . 0 m A

2

1

I 1

11 . 0 0 0 A

1 . 5 0 0 V

GRAPH:-

PRECAUTIONS:-

1) Proper electrical elements should be used for desired result.2) If any circuit element is not found then library must be prefered.3) While writing program upper or lower case any one of them can be used.4) The first line of the program is the title line and can be anything .It cannot be omitted.5) The last line must be a .END statement.6) We can insert comment lines .Anytime line tarts with an “*” and is appropriate to block out a

command line.7) Proper probes (voltage & current probes) at the nodes and branches must be used for the

respective determination of voltage &current.

8) File must be saved and copyed for the final execution and resu 9) The result should be made available for display and final hard copy by the probe command.


Date20/02/2014

EXPERIMENT NO.2

AIM - To determine the transient response of a parallel RLC circuit using step input voltage responseS


THEORY:- % Over shoot for over damped and critically damped is zero for underdamped case =[peakout- Vout(infinity)x100%.

Rise time is detained as the time required for the o/p voltage to rise from 10% to90%.The sitting time is required by an underdamped system for its o/p voltage response to reach steady state value.

PROGRAMMING:- *PULSE(+VS -VS TD TR TF PW PER)

VIN 7 0 PULSE (0V 200 US)

R1 1 0 3

R2 1 0 5

L1 1 0 6 UH

C1 1 0 10UH

.TRAN 1US 400US

*.PRINT TRANV(R1)V(R2)V(L10V(C1)

*.PLOT TRANV3I(R1)

.PROBE

.END

RESULT


We have the following result af assignment of values.

0 V

I1

TD = 2 0 0

TF = 6 0 0P W = 5 0P E R = 2 0 0

I1 = 1 0 0I2 = 7 5

TR = 1 5 0

1 0 0 . 0 A

-5 .0 0 0 K V

R 2

5 0 1 0 0 . 0 A

L 1

0 2

1 0 0 . 0 A1

2

C 1

5 0

0

0 V

R 1

2 00 A


PRECAUTIONS:-



respective determination of voltage &current.8) File must be saved and copyed for the final execution and result.9) The result should be made available for display and final hard copy by the probe command.


Date-20/02/2014

EXPERIMENT NO.3

AIM - To determine the value of current in the given resistive circuit.


THEORY:- There are a no. of methods for determination of circuit current of any resistive circuit. These include KCL,KVL,MESH,LOOP,NODE ANALYSIS.The practical determination by PSPICE is shown below.

R 7

5

V 25 0

R 5

5

R 8

5

R 6

5

0


0 V

4 0 .0 0 V

2 4 . 3 5 V

V 25 0 -6 2 . 6 1 W

1 . 5 6 5 A

R 7

5

3 . 63 0 W3 4 7 . 8 m A

R 8

54 . 83 9 W

3 4 7 . 8 m A

R 5

5

24 .5 0 W1. 5 6 5 A

R 6

52 9 . 6 4 W

1 . 2 1 7 A

13 .9 1 V

0

GRAPH:-

PRECAUTIONS:-

1) Proper electrical elements should be used for desired result.2) If any circuit element is not found then library must be prefered.3) While writing program upper or lower case any one of them can be used.


Date-11/02/2014

4) The first line of the program is the title line and can be anything .It cannot be omitted.5) The last line must be a .END statement.6) We can insert comment lines .Anytime line tarts with an “*” and is appropriate to block out a




Date-20/02/2014

Date -25/02/2014

EXPERIMENT NO.4

AIM:- To obtain the transient response of series rlc alternating square voltage input waveform.


THEORY:- The sinusoidal voltage is applied to the series RLC circuit. us transient response is calculated 0 to 400us with a time increment of 1us.The capacitor and resistor voltage are plotted.The circuit file is *.cir & the inputs are to be stored in .*OUT.The result are made available for display by the probe command below.

PROGRAMMING :- *SIN(V0 VA FREQ)

VIN 7 0 SIN(0 100 50KHz)

R1 7 50

L1 5 3 60 UH

C1 3 0 10 UH

*.TRAN TSTEP TSTOP

.TRAN 1US 400US

*.PRINT TRAN V(R1)V(L1)V(C1)

*.PLOT TRAN V(3) I (R1)

.PROBE

.END


1 . 0 0 0 K V

R 1

5 00 A 1 . 0 0 0 K V

0 V

0

C 1

1 01 . 0 0 0K V

L 1

6 00 A1 2

V 2

TD = 2 0 0

TF = 4 0 0P W = 5 0 0P E R = 3 0

V 1 = 1 0 0 0

TR = 4 2 5

V 2 = 3 0 00 A

The final circuit after introducing probes in it is:

GRAPH:-

After introducing the probes:-


PRECAUTIONS:-





Date-5/03/2014

EXPERIMENT NO.5

AIM:- To obtain frequency response for series RLC circuit for sinusoidal voltage Input.


THEORY- A sinusoidal input voltage is applied to a series RLC circuit as shown in figure The frequency response over the frequency range 10Hz to 100 Hz with a decade increment & 100 points per decade is calculated.The magnitude and phase angle of the voltage across the capacitors are plotted for better analysis.The result is available below for display by the probe command.

V11 1 0 PWL (0 0 1NS 1V 1MS 1V) ; Step of 1V



R1 1 2 2

L1 2 3 50UH

C1 3 0 10UF

R2 4 5 1

L2 5 6 50UH

C2 6 0 10UH

R3 7 8 8

L3 8 9 50UH

C3 9 0 10UH

.PLOT TRAN V(3) V(6) V(9) ;PLOT OUTPUT VOLTAGES

.TRAN 1US 400US ;TRANSIENT ANALYSIS

.PROBE ;GRAPHICS POST-PROCESSOR


.END


0 V

0

C 1

1 n

L 1

1 0 u H0 A1 2

V 5

F R E Q = 5 0V A M P L = 2V O F F = 2 20

0 A

R 1 3

1 0 00 A

2 2 0 . 0 V

2 2 0 . 0 V

Date 5/03/2014

PRECAUTIONS:-





Date 7/03/2014

EXPERIMENT NO. 6

AIM:- To determine the transient resonse of a series RLC circuit with step input voltage.

SOFTWARE USED:- ORCAD (PSPICE STUDENT ‘s VERSION).

THEORY:- A pulse step input voltage is applied to a series RLCcircuit as shown in fig. The transient response is calculated and plotted from 0 to 400 uf. With a time increment of us.The capacitor voltage V3 and the current through R1 are to be plotted.The circuit file name is *.clr,& the input are to be stored in file *.out.The results should also be made available for display & hard copy by the probe command.

PROGRAMMING:- *PULSE(+VS –VS TD TR TF PW PER)

VIN 7 0 PULSE(0V 200 US)

R1 7 5 5

L1 5 3 10 UH

C1 3 15 UF


V 12 0 V d c 0 W

0 A

L 3

1 0 u H

0 W0 A

1 2R 4

5k

0 W0 A

2 0 .0 0 V

2 0 . 0 0 V

0

0 V

C 2

1 5 n2 0 . 0 0 V

Date 7/03/2014

*.TRAN TSTEP STOP

.TRAN 1US 400 US

*.PRINT TRAN V(R1) V(L1) V(C1)

*.PLOT TRAN V(3)I (R1)

.PROBE

.END

GRAPH


PRECAUTIONS:-





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