The document outlines a project by a group called 'Electro Infinity Teamwork' focused on designing a saw tooth waveform generator circuit using operational amplifiers and determining its transfer function. The project involves various components including a NE 555 timer IC, resistors, capacitors, and an oscilloscope, with the aim of comparing hardware results to MATLAB outputs. It also discusses the characteristics of saw tooth waves and their applications in audio signals and control systems.

1. Saw tooth
Waveform Generator

2. INTRO TO Group Electro Infinity
Teamwork
(Electronics without limit)
Squad Captain
Iftekhar Haque 201-33-1231
Squad Member
Ubaidur Rahman 201-33-1132
Mehedi Hasan Setu 201-33-1098
Zubayer Ahmed 201-33-1260
Tanvir Jaman 201-33-1163
Md. Al mazid khan taa-seen 201-33-1133
Ahsan ahammed afridi 201-33-1122

3. Project Outcome
Design one Saw tooth Waveform Generator circuit using operational
amplifier (not using any single signal generator chip), while applying
a DC input. Also, determine transfer function of the same circuit
considering values of circuit parameters. Finally compare the
hardware result with output of the MATLAB.
Drive buzzer with different loudness
Control speed of the motor
Control the direction of a servo
Provide an analog output
Generate audio signal
Telecommunication
Analog computers
A/D converters.

4. Apparatus of the Project
 NE 555 Timer IC
 UA741 IC
 Variable DC Power Supply
 Power diode, 1N4007
 Resistor (1Kohm),(100 ohm)
 capacitor ( 0.01uF) ,(0.1uF),(100uF)
 Oscilloscope,
 Bread board
 100k potentiometer
 LED (RED)
 Trainer board
 Jumper Wire

5. Saw tooth Wave
A waveform in which voltage rises gradually to a peak and then falls off rapidly,
or vice-versa, during each cycle. It’s shape on a screen or oscilloscope is similar to
the tooth of a saw blade. The shape of all waveforms is produced by a
combination of the fundamental frequency and the presence (or lack thereof) of
various harmonics. The saw tooth wave contains a fundamental and all other
harmonics. Their characteristic sounds are softer and smoother than most. It is the
waveform produced by bowed stringed instruments. They are also sometimes
called “ramp” waves.

6. NE 555 Timer IC

7. MATLAB Simulink Output

8. Simulink Output analysis
PIC : Dso Output

9. Simulink Output analysis
PIC : Dso Output

10. PWM Generator Circuit
Using NE 555 Timer IC
555 Timer IC
1N4007
1Kohm
0.01uF
0.1uF
100k pot
(103)
(104)

11. PWMGenerator Circuit Using 555 Timer IC

12. UA 741 IC

13. OP-Amp (UA 741 IC) Using
Integrator Amplifier
100uF
100 ohm
1Kohm

14. Pic: OP-Amp (UA741 IC) Using Integrator Amplifier

15. Saw tooth Wave Generator
100uF
100 ohm
1Kohm
555 Timer IC
1N4007
1Kohm
0.01uF
0.1uF 100k pot
(103)
(104)

16. Variable
DC Power Supply
Hardware implementation of circuit
PIC : all circuit connection

17. PIC : Digital Storage Oscilloscope Output

18. PIC : Digital Storage Oscilloscope Output

19. PIC : Digital Storage Oscilloscope Output
PIC : Theoretical output

20. https://www.electronics-tutorials.ws/waveforms/555_timer.html
https://circuitdigest.com/electronic-circuits/555-timer-astable-multivibrator-circuit-
diagram
https://www.electronicshub.org/astable-multivibrator-using-555-timer/
https://youtu.be/M729A7cNzuA
https://youtu.be/Wa9JUTH0FwQ
https://youtu.be/PLu7JwANl1w
References
Copyright: The information used within the presentation is solely for academic purpose. The presenter declares no copyright claim
The associated pictures may subject to copyright, please concern with the respective copyright holder for further use.

21. Thank YOU
If you want to find the secrets of the universe, think in terms of
energy, frequency and vibration.