SIMULATION DESIGN TOOL - · PDF fileSimulation Design Tool INDEX Sr. No. Title Page Date Sign...

SHANKERSINH VAGHELA BAPU INSTITUTE OF TECHNOLOGY

SIMULATION DESIGN TOOL

LABORATORY MANUAL

B.E. 4th SEMESTER-2015-16

SHANKERSINH VAGHELA BAPU INSTITUTE OF TECHNOLOGY

Gandhinagar-Mansa Road, PO. Vasan,

Gandhinagar District, Gujarat,

Pin. 382650

Shankersinh Vaghela Bapu Institute Of Technology.

Simulation Design Tool

1


INDEX

Sr.

No.

Title Page Date Sign Grade

1.a

1.b

Simulate and study of half-wave, using

Multisim.

Simulate and study of full-wave, using

Multisim.

2. Simulate and study of bridge-rectifier

using Multisim.

3.a

3.b

Stimulate and Study Positive Clipper

circuits using Multisim.

Stimulate and Study Negative Clipper

circuits using Multisim.

4.a

4.b

Stimulate and Study Positive Clamper

circuits using Multisim

Stimulate and Study Negative Clamper

circuits using Multisim

5. Stimulate and Study Voltage Regulator

using Multisim.

6. Stimulate and Study logical expression

using Multisim

7.a

7.b

Simulate Full adder using Multisim and

determine its truth table.

Simulate Full adder using Multisim and




2

8. Simulate a 3-bit synchronous counter

and determine its counter sequence

using Multisim.

9. Simulate a 4-bit Asynchronous counter

and determine its counter sequence

using Multisim.

10. Introduction to PCB Design



3

EXPERIMENT:- 1

[A] AIM: Stimulate and Study half-wave Rectifier using Multisim.

EQUIPMENTS: [1].Transformer NLT_PQ_4_12.

[2].Oscilloscope XSC1.

[3].Resistor 2k.

[4].Diode Virtual.

[5].Voltage Source.

THEORY: The process of converting an alternating voltage/current to a

unidirectional voltage/current is called rectification. A diode offers very

low resistance when forward biased and very high resistance when

reverse biased. Hence, it can be used as rectifier. The rectified output is a

pulsating unidirectional voltage/current. A filter is necessary after rectifier

to convert pulsating waveform to dc.

Half wave rectifier: During positive half cycle, the diode is forward biased. Hence,

current flows through load resistor. During negative half cycle, the diode

is reverse biased and is equivalent to open circuit. Therefore current

through load is zero. Thus, the diode conducts only for one half cycles

and results in half wave rectified output. Half wave rectifier is simple and

low cost circuit but it has very high ripple, lower efficiency.



4

CIRCUIT DIAGRAM:

Figure 1

PROCEDURE:

[1]Complete the circuit as per the fig. (1) for half wave rectifier.

[2]Connect the CRO across the load.

[3]Switch on the supply.

[4]Keep the CRO in ground mode and Switch the CRO to DC mode

[5]Observe the half wave rectifier output voltage



5

OUTPUT VOLTAGE:

FIGURE 2

CONCLUSION:



6

EXPERIMENT:-1

[B] AIM:

Stimulate and Study Full-wave Rectifier using Multisim.

EQUIPMENTS:

[1].Transformer NLT_PQ_4_12.


[3].Resistor 2k.

[4].Diode Virtual. (2)

[5].Voltage Source.

THEORY:

The process of converting an alternating voltage/current to a






Full wave rectifier: The full wave rectifier consists of a center-tap transformer, which

results in equal voltages above and below the center-tap. During the

positive half cycle, positive voltage appears at the anode of D1 while

negative voltage at the anode of D2. So diode D1 is forward biased and it

results in current through load. During negative half cycle, the positive

voltage appears at the anode of D2 and hence it is forward biased

resulting in current through load. At the same instant a negative voltage

appears at the anode of D1, thus reverse biasing it and hence D1 does not

conduct. The current through the load during both half cycles is in the



7

same direction hence it is sum of individual currents. The individual

currents and voltages are combined in the load and therefore their average

values are double that obtained in a half wave rectifier. In full wave

rectifier, ripple is reduced, efficiency is improved. And as equal current

flows through secondary during both the half cycle, core does not

saturate. The demerits of full wave rectifier are : output voltage is half the

secondary voltage and diodes with high PIV ratings are required.

CIRCUIT DIAGRAM:

Figure-1

PROCEDURE:

[1]Complete the circuit as per the fig. (1) for Full wave rectifier.




8



[5]Observe the Full wave rectifier output voltage

OUTPUT VOLTAGE DIAGRAM:

FIGURE 2

CONCLUSION:



9

EXPERIMENT: - 2

AIM:

Stimulate and Study Bridge-wave Rectifier using Multisim.

EQUIPMENTS:

[1].Transformer NLT_PQ_4_12.


[3].Resistor 2k.

[4].Diode Virtual. (4)

[5].Voltage Source.

THEORY:

The process of converting an alternating voltage/current to a






Bridge rectifier: This circuit does not required center-tap transformer. During the

positive half cycle, diodes D1 and D2 are forward biased and D3 and D4

are reverse biased. Thus, current flows in the circuit due to D1 and D2.

During the positive half cycle, diodes D1 and D2 are forward biased and

D3 and D4 are reverse biased. Thus, current flows in the circuit due to D1

and D2. During the negative half cycle, diodes D3 and D4 are forward

biased and D1 and D2 are reverse biased which results in a current in the

same direction. Thus the current flows for the whole cycle across the load

in one direction resulting in full wave rectification. Since bridge rectifier

does not required center-tapped transformer, its cost, weight and size are

lesser compared to a full wave rectifier. Diode with lesser PIV can be

used in bridge rectifier compared to full wave rectifier.



10

CIRCUTI DIAGRAM:

FIGURE 1

PROCEDURE:

[1]Complete the circuit as per the fig. (1) for Bridge rectifier.




[5]Observe the Bridge rectifier output voltage.



11

OUTPUT VOLTAGE:

FIGURE 2

CONCLUSION:



12

EXPERIMENT:-3 [A]

AIM:

Stimulate and Study Positive Clipper circuits using Multisim.

EQUIPMENTS:

[1]XFG1

[2]Resistor 2K.

[3]Oscilloscope XSC1

[4]Virtual Diode.

THEORY: The circuit used to limit or clip the extremities of the ac signal

is called the limiter or clipper. Limiters can transform a sine wave into a

rectangular wave. It can limit either the positive or negative amplitude of

an ac voltage. It can also perform other useful wave shaping functions.

The unidirectional characteristics of semiconductor diodes permit to

serve as limiter. In Figure 1, a sine wave signal of amplitude V in is

applied to the input. During the positive half cycle of the input signal,

diode D is reversed biased and cannot conduct. Hence the output obtained

at the output terminals is zero. During the negative half cycle of the input

signal, diode D is forward biased and current can flow in the circuit.

Hence at the output terminal, the output voltage Vo will be developed

which will be having full negative half cycles and clipped positive half

cycles. This circuit is known as positive clipper because the diode is in

series with the output terminal and the output is clipped on the positive

side.



13

CIRCUIT DIAGRAM:

Figure-1

PROCEDURE:

POSITIVE CLIPPER

[1]Connect the circuit of Figure-1 and apply a sine wave voltage of 50 Hz

(Vin max.15V) at the input terminal using audio signal generator

XFG1.

[2]Observe the output voltage Vo in waveform in Oscilloscope.



14


Figure-2

CONCLUSION:



15

EXPERIMENT:-3

[B]

AIM:

Stimulate and Study Negative Clipper circuits using Multisim.

EQUIPMENTS:

[1]XFG1

[2]Resistor 2K.


[4]Virtual Diode.

THEORY: The circuit used to limit or clip the extremities of the ac signal is

called the limiter or clipper. Limiters can transform a sine wave into a

rectangular wave. It can limit either the positive or negative amplitude of

an ac voltage. It can also perform other useful wave shaping functions.

The unidirectional characteristics of semiconductor diodes permit to

serve as limiter. In Figure 1, a sine wave signal of amplitude Vin is

applied to the input. During the positive half cycle of the input signal,

diode D is reversed biased and cannot conduct. Hence the output obtained

at the output terminals is zero. During the negative half cycle of the input

signal, diode D is forward biased and current can flow in the circuit.

Hence at the output terminal, the output voltage Vo will be developed

which will be having full negative half cycles and clipped positive half

cycles. By reversing the polarity of diode negative clipper can be

realized which can give the output voltage Vo with full positive half

cycles and clipped negative half cycles.



16

CIRCUIT DIAGRAM:

Figure-3

PROCEDURE: [1]Connect the circuit of Figure-3 and apply a sine wave voltage of 50

Hz (Vin max.15V) at the input terminal using audio signal generator

XFG1.

[2]Observe the output voltage Vo in waveform in Oscilloscope.



17


FIGURE 4

CONCLUSION:



18

EXPERIMENT:-4 [A]

AIM:

Stimulate and Study Positive Clamper circuits using Multisim.

EQUIPMENTS:

[1]XFG1

[2]Resistor 200K.


[4]Virtual Diode.

[5]Capacitor 100 pf

THEORY:

The circuit that does not change the shape of the input waveform but

only adds a D.C. level to the input waveform is known as clamper, d.c.

Restorer or dc inserter.

In the circuit of Figure 1, during the negative half cycle of the input

sine wave signal of 15 V (peak-to-peak), the diode D will conduct and the

capacitor C will charge to the 5Vpeak value of the negative half cycle

through the low resistance path of the forward biased diode. During the

positive half cycle of the input sine wave signal, the diode D can not

conduct and the capacitor C will try to discharge through R. If the

discharge time constant RC is large as compared to the time period of the

input sine wave, the capacitor will lose very little of its charge and will

hold the charged value of 5 V across it. Now during the next negative half

cycle of the input sine wave signal, the negative input voltage will be

cancelled by the positive voltage across the capacitor and diode cannot

conduct. Hence, effectively 5 V is added by this positive clamper to the

input sine wave. The output wave will have D.C. Level of 5 V and it will

vary from 0 V to 10 V.



19

CIRCUIT DIAGRAM:

Figure-1

PROCEDURE:

POSITIVE CLAMPER

[1]Connect the circuit of Fig. 1 and apply sinusoidal input signal of 15

Vpp value to the circuit.

[2]Observe the output signal on C.R.O. keeping it on D.C. Position.



20


Figure-2

CONCLUSION:



21

EXPERIMENT:-4

[B]

AIM:

Stimulate and Study Negative Clamper circuits using Multisim.

EQUIPMENTS:

[1]XFG1

[2]Resistor 200K.


[4]Virtual Diode.

[5]Capacitor 100 pf

THEORY: The circuit that does not change the shape of the input waveform but

only adds a D.C. level to the input waveform is known as clamper, d.c.

Restorer or dc inserter.

In the circuit of Figure 1, during the negative half cycle of the input

sine wave signal of 15 V (peak-to-peak), the diode D will conduct and the

capacitor C will charge to the 5Vpeak value of the negative half cycle

through the low resistance path of the forward biased diode.Negative

clamper works on the similar principle as that of the positive clamper and

can add a negative D.C. Level to the input wave. In the circuit shown in

Figure 3, the polarity of the diode D has been reversed. The capacitor C

will charge during the positive half cycle of the input sine wave signal and

will hold the peak value of the half cycle across it. The circuit effectively

will add - 5 V to the input sine wave and the output will vary from 0 V to

- 10 V with D.C. Value equal to - 5 V.



22

CIRCUIT DIAGRAM:

Figure-3

PROCEDURE:

NEGATIVE CLAMPER

[1].Connect the circuit of Fig. 1 and apply sinusoidal input signal of 15

Vpp value to the circuit.

[2].Observe the output signal on C.R.O. keeping it on D.C. Position.



23


Figure-2

CONCLUSION:



24

EXPERIMENT:- 5

AIM: Stimulate and Study Voltage Regulator using Multisim.

EQUIPMENTS: [1].Function generator.


[3].Resistor 2k.

[4]. Line voltage.

THEORY:

The Digilab board can use any power supply that creates a DC

voltage between 6 and 12 volts. A 5V voltage regulator (7805) is used to

ensure that no more than 5V is delivered to the Digilab board regardless

of the voltage present at the J12 connector (provided that voltage is less

than 12VDC). The regulator functions by using a diode to clamp the

output voltage at 5VDC regardless of the input voltage - excess voltage is

converted to heat and dissipated through the body of the regulator. If a

DC supply of greater than 12V is used, excessive heat will be generated,

and the board may be damaged. If a DC supply of less than 5V is used,

insufficient voltage will be present at the regulators output.

If a power supply provides a voltage higher than 7 or 8 volts, the

regulator must dissipate significant heat. The "fin" on the regulator body

(the side that protrudes upward beyond the main body of the part) helps to

dissipate excess heat more efficiently. If the board requires higher

currents (due to the use of peripheral devices or larger breadboard

circuits), then the regulator may need to dissipate more heat. In this case,

the regulator can be secured to the circuit board by fastening it with a

screw and nut (see below). By securing the regulator tightly to the circuit

board, excess heat can be passed to the board and then radiated away.



25

CIRCUIT DIAGRAM:

OUTPUT VOLTAGE:

CONCLUSION:



26

EXPERIMENT: - 6

AIM: Stimulate and Study logical expression using Multisim.

EQUIPMENTS:

[1].AND GATE.

[2].OR GATE.

[3].NOT GATE.

THEORY:

LOGIC EXPRESSION:-

Minterms:-

Y= ∑ m(0,1,2,3,5,7,8,10,15)

K-map



27

EXPRESSION:-

Y=A’D+B’D’+BCD.

CIRCUIT DIAGRAM:

Figure 1

CONCLUSION:



28

EXPERIMENT: - 7

[A]

AIM: Simulate Full adder using Multisim and determine its truth table.

EQUIPMENTS: [1].AND GATE.

[2].OR GATE.

[3].NOT GATE.

[4].PROBE.

[5]. VOLTAGE SOURCE.

THEORY: To construct a full adder circuit, we'll need three inputs and two

outputs. Since we'll have both an input carry and an output carry, we'll

designate them as CIN and COUT. At the same time, we'll use S to

designate the final Sum output. The resulting truth table is shown.

This is looking a bit messy. It looks as if COUT may be either an

AND or an OR function, depending on the value of A, and S is either an

XOR or an XNOR, again depending on the value of A. Looking a little

more closely, however, we can note that the S output is actually an XOR

between the A input and the half-adder SUM output with B and CIN

inputs. Also, the output carry will be true if any two or all three inputs are

logic 1.

What this suggests is also intuitively logical: we can use two half-

adder circuits. The first will add A and B to produce a partial Sum, while

the second will add CIN to that Sum to produce the final S output. If either

half-adder produces a carry, there will be an output carry. Thus, COUT will

be an OR function of the half-adder Carry outputs. The resulting full

adder circuit is shown below.



29

TRUTH TABLE:-

CIRCUIT:-

INPUTS OUTPUTS

A B C COUT S

0 0 0 0 0

0 0 1 0 1

0 1 0 0 1

0 1 1 1 0

1 0 0 0 1

1 0 1 1 0

1 1 0 1 0

1 1 1 1 1



30

CIRCUIT DIAGRAM:

OUTPUT DIAGRAM:

CONCLUSION:



31

EXPERIMENT:- 7

[B]

AIM: Simulate Full Subtractor using multisim and determine its truth

table.

EQUIPMENTS: [1].AND GATE.

[2].OR GATE.

[3].XOR GATE.

[4].PROBE.

[5]. VOLTAGE SOURCE.

THEORY:

This circuit is performing binary subtraction of B from A (A-B,

recalling that in binary 0-1 = 1 borrow 1). Such a circuit is called a half-

subtractor, the reason for this is that it enables a borrow out of the

current arithmetic operation but no borrow in from a previous arithmetic

operation.

As in the case of the addition using logic gates, a full subtractor is

made by combining two half-subtractor and an additional OR-gate. A full

subtractor has the borrow in capability (denoted as BORIN in the diagram

below) and so allows cascading which results in the possibility of multi-

bit subtraction. The circuit diagram for a full subtractor is given below.



32

TRUTH TABLE:-

CIRCUIT:-



33

CIRCUIT DIAGRAM:

OUTPUT DIAGRAM:

CONCLUSION:



34

EXPERIMENT:- 8

AIM:

Stimulate 3bit Synchronous UP Counter using Multisim and


EQUIPMENTS:

[1]. JK-FLIP FLOP.

[2]. AND GATE.

[3].CLOCK.

[4].OSCILLOSCOPE.

[5].VOLTAGE SOURCE.

THEORY:

A counter is a register capable of counting numbers of clock pulse

arriving at its clock input. Counter represents the number of clock pulses

arrived. An up/down counter is one that is capable of progressing in

increasing order or decreasing order through a certain sequence. An

up/down counter is also called bidirectional counter. Usually up/down

operation is controlled by up/down signal. When this signal is high

counter goes through up sequence and when up/down signal is low

counter follows reverse sequence. Here we are performing our exp using

3-bit up synchronous counter.

EXCITATION TABLE OF JK FF:

Present

state Q

n

Next

state Q

n+1

J K

0 0 0 X

0 1 1 X

1 0 X 1

1 1 X 0



35

CIRCUIT EXCITATION TABLE:

K-maps AND SIMPLIFIED EXPRESSIONS:

Present state Q

C Q

B Q

A

Next State Q

C+1 Q

B+1 Q

A+1

Flip flop inputs JC

KC

JB

KB

JA

KA

0 0 0 0 0 1 0 X 0 X 1 X

0 0 1 0 1 0 0 X 1 X X 1

0 1 0 0 1 1 0 X X 0 1 X

0 1 1 1 0 0 1 X X 1 X 1

1 0 0 1 0 1 X 0 0 X 1 X

1 0 1 1 1 0 X 0 1 X X 1

1 1 0 1 1 1 X 0 X 0 1 X

1 1 1 0 0 0 X 1 X 1 X 1



36

CIRCUIT DIAGRAM:

PROCEDURE:

[1].Connections are made as per the circuit diagram [2].Switch on the power supply.

[3].Apply clock pulses and note the outputs after each clock pulse and note

done the out puts.



37

TIMING DIAGRAM:

CONCLUSION:



38

EXPERIMENT:-9

AIM:

Stimulate 4 bit Asynchronous UP Counter using Multisim and


EQUIPMENTS:

[1]. JK-FLIP FLOP.

[2].CLOCK.

[3].DCD Hex Green U5.

[4].VOLTAGE SOURCE.

THEORY:

An asynchronous (ripple) counter is a single JK-type flip-flop, with

its J (data) input fed from its own inverted output. This circuit can store

one bit, and hence can count from zero to one before it overflows (starts

over from 0). This counter will increment once for every clock cycle and

takes two clock cycles to overflow, so every cycle it will alternate

between a transition from 0 to 1 and a transition from 1 to 0.A counter

that can change state in either direction, under the control of an up/down

selector input, is known as an up/down counter. When the selector is in

the up state, the counter increments its value.

EXCITATION TABLE OF JK FF:

Present

state Q

n

Next

state Q

n+1

J K

0 0 0 X

0 1 1 X

1 0 X 1

1 1 X 0



39

CIRCUIT EXCITATION TABLE:

Present state Q

D Q

C Q

B Q

A

Next State Q

D+1 Q

C+1 Q

B+1 Q

A+1

Flip flop inputs JD

KD

JC

KC

JB

KB

JA

KA

0 0 0 0 0 0 0 1 0 X 0 X 0 X 1 X

0 0 0 1 0 0 1 0 0 X 0 X 1 X X 1

0 0 1 0 0 0 1 1 0 X 0 X X 0 1 X

0 0 1 1 0 1 0 0 0 X 1 X X 1 X 1

0 1 0 0 0 1 0 1 0 X X 0 0 X 1 X

0 1 0 1 0 1 1 0 0 X X 0 1 X X 1

0 1 1 0 0 1 1 1 0 X X 0 X 0 1 X

0 1 1 1 1 0 0 0 1 X X 1 X 1 X 1

1 0 0 0 1 0 0 1 X 0 0 X 0 X 1 X

1 0 0 1 1 0 1 0 X 0 0 X 1 X X 1

1 0 1 0 1 0 1 1 X 0 0 X X 0 1 X

1 0 1 1 1 1 0 0 X 0 1 X X 1 X 1

1 1 0 0 1 1 0 1 X 0 X 0 0 X 1 X

1 1 0 1 1 1 1 0 X 0 X 0 1 X X 1

1 1 1 0 1 1 1 1 X 0 X 0 X 0 1 X

1 1 1 1 0 0 0 0 X 1 X 1 X 1 X 1



40

K-maps AND SIMPLIFIED EXPRESSIONS:



41

CIRCUIT DIAGRAM:

PROCEDURE:

[1].Connections are made as per the circuit diagram [2].Switch on the power supply.

[3].Apply clock pulses and note the outputs after each clock pulse and note

done the outputs.

CONCLUSION:



42

EXPERIMENT:-10

AIM:

Stimulate and study Printed Circuit Boards using Ultiboard.

THEORY:

Ultiboard is used to design printed circuit boards, perform certain

basic mechanical CAD operations, and prepare them for manufacturing. It

also provides automated parts placement and layout.

1 Menu Bar 4 Draw Settings

Toolbar

7 Autoroute Toolbar 10 Spreadsheet View 13 Birds Eye View

2 Standard Toolbar 5 View Toolbar 8 Status Bar 11 Design Toolbox

3 Select Toolbar 6 Main Toolbar 9 Workspace 12 3D Preview



43

Design Toolbox:

Use the Design Toolbox, shown in the figure below, to manage

your design by controlling major parts of Ultiboard’s functionality.

The Design Toolbox is made up of two tabs:

The Projects tab is where you view the projects that are currently

open. Each project may contain one or more designs. Double-click

on a particular design to make it the active view.

The Layers tab is where you move between layers of your design,

control the appearance of layers, and perform several other

functions.

Autoroute Toolbar:

The Autoroute toolbar contains the autorouting and placement

functions supported by Ultiboard.

APPLICATIONS:

NI Ultiboard software helps students learn about the layout process

and industry practices by providing a flexible environment for PCB

layout and routing.

Students can retrieve designs from NI Multisim interactive SPICE-

based simulation or begin from scratch using parts from the built-in

Ultiboard database of land patterns.

Main features: - Prepares students for professional design

activities with integrated layout and routing.

Combine with NI Multisim to simplify transfer of designs from

schematic to layout.

Helps students produce their first PCBs with pick-and-place

components and follow-me routing.

Exports to standard formats including Gerber to give students an

understanding of industry practices.

Creates designs of up to four layers with up to 1,000 pin.



44

CIRCUIT DIAGRAM:

PCB DESIGN:

CONCLUSION:

SIMULATION DESIGN TOOL - · PDF fileSimulation Design Tool INDEX Sr. No. Title Page Date Sign...

Documents

Transcript of SIMULATION DESIGN TOOL - · PDF fileSimulation Design Tool INDEX Sr. No. Title Page Date Sign...