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7 th

International Scientific Conference

Technics and Informatics in Education

FacultSerbia, 25-27

th

May 2018

Simulations of Analog Circuits in Multisim

Software Suite

1* , Marina 1 1 1 1 1 , Faculty of Technical Sciences , Serbia

Abstract: In the field of Electrical Engineering s tudents' education, the experiments including hardware

and software components have an important role. Students mostly gain theoretical knowledge with some or none actual experience, so the development of various simulations if the actual hardware is unavailable

can in some part satisfy the need for the practice. In this paper, we elaborated the topic of creating

simulations of real analog circuits in Multisim software suite, and their analysis with NI Elvis II+ hardware

platform. The students were interviewed about their opinion on these simulations, and their answers confirmed their satisfaction with the realized experiments. Keywords: analog circuits; hardware simulations; Multisim; NI Elvis II+; software simulations;

1. INTRODUCTION

National

use a analyzers, function generators, etc. The idea of the ar understanding of t circuits.

2. ANALOG CIRCUITS

The students throughout their entire education get in touch uch as resistors, circuits).

2.1. Non-inverting operational amplifier

non-

Figure 1. The schematic of the non-inverting

operational amplifi er

R1 and R2 resistors,

R1 and R2. The

in that describes gain [1], [2]: 1 2 1 R A R R

A = 11.

Engineering Education and Practice et al.

2.2. Low-pass filter

filter.

Figure 2. The schematic of the low-pass filter

f g as [1] -[3]: 1212
1

1591.5

2 g fHz RRCC

2.3. High-pass filter

filter.

Figure 3. The schematic of the high-pass filter

The high

f g calculated as [1] -[3]: 1212
1 132
2 g fHz RRCC

2.4. Differentiator

differentiator. [1], [2].

Figure 4. The schematic of the differentiator

2.5. Integrator

Figure 5. The schematic of the integrator

3. MULTISIM SIMULATIONS

circuits is done by interconnecting the basic [4].

3.1. Non-inverting operational amplifier

non-

Figure 6. The realization of the non-inverting

operational amplifier in Multisim ls for in Fig. 7.

Engineering Education and Practice et al.

Figure 7. The oscilloscope display for the

non-inverting operational amplifier

3.2. Low-pass filter

Figure 8. The realization of the low-pass filter in

Multisim

ator), 2 -

Figure 9. The oscilloscope display for the low-

pass filter

As can

characteristic of the filter is significantly

Hz. Thus, it

can be sai

Figure 10. The amplitude characteristics of the

low-pass filter

Figure 11. The phase characteristics of the low-

pass filter

3.3. High-pass filter

The Fig. 12 -

Figure 12. The realization of the high-pass filter in Multisim

The Fig. 13

high-

Hz and

high- filter.

Figure 13. The oscilloscope display for the high-

pass filter

Engineering Education and Practice et al.

13 chara than the the high

Figure 14. The amplitude characteristics of the

high-pass filter

Figure 15. The phase characteristics of the high-

pass filter

3.4. Differentiator

Figure 16. The realization of the differentiator in

Multisim

and has the of 1000 and readings.

Figure 17. The oscilloscope readings of the

differentiator circuit

3.5. Integrator

realization of the integrator

Figure 18. The realization of the integrator in

Multisim

and has the signal is 10n

Figure 19. The oscilloscope readings of the

integrator circuit

4. The simulations with NI Elvis II+

hardware device ). The layout of

Engineering Education and Practice et al.

Figure 20. The layout of the educational board

for implementation of the analog circuits

Figure 21. The NI Elvis II+ platform

ction generator signals are

Figure 22. The NI Elvis function generator layout

4.1. Non-inverting operational amplifier

The ana lysis of the non-

s are

Figure 23. The oscilloscope reading from the non-

inverting operational amplifier circuit

4.2. Low-pass filter

The chas

24

Figure 24. The oscilloscope reading from the low-

pass filter circuit

Figure 25. The amplitude and phase

characteristics of the low-pass filter At - good result considering

4.3. High-pass filter

of the high 26. -

Engineering Education and Practice et al.

Figure 26. The oscilloscope reading from the

high-pass filter circuit high- 27.
cal

Figure 27. The amplitude and phase

characteristics of the high-pass filter

4.4. Differentiator

ion. The both signals

Figure 28. The oscilloscope reading from the

differentiator circuit 4.5. Integrator ion. The both

Figure 29. The oscilloscope reading from the

integrator circuit

5. The student analysis

Engineering and the

5.1. Survey on the students of the Power

Engineering

fine. he ts -4):

Strongly agree,

Neither agree nor disagree,

Strongly disagree.

Engineering Education and Practice et al.

5.2. Survey on the students of the Computer

Engineering

T

Engineering.

5.3. Survey results and discussion

The total of 18

agree" had a score of 5, descending to a score of 1

Figure 30. Power Engineering students' survey

results for the questions 1 - 4 good r the Fig. 31.

Figure 31. Power Engineering students' survey

results for the fifth question ratio.

Figure 32. Computer Engineering students'

survey results for the questions 1 - 4 stat

Figure 33. Computer Engineering students'

survey results for the fifth question

Engineering Education and Practice et al.

6. CONCLUSION

ons.

ACKNOWLEDGEMENTS

Serbian Ministry of Education, Science and

T no. III47003 and TR32043.

REFERENCES

[1]

M. Analog

circuit design.

Linear circuit design

handbook

LabVIEW digital signal

processing and digital communications. -Hill

Analog devices using NI Multisim.

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