Module 4 :Ic 555 As A Astable & Monostable Multivibrator
- 1. By Mr. C.R.Shinde Electrical Engineering Department Matoshri College of Engineering & Research centre, Nashik
- 2. Unit 05: Other Analog circuits:- 1. Active filters-Its configuration with frequency response 2. Analysis of first order low pass and high pass filters using OPAMP. 3. IC 555 –construction, working . 4. IC 555 –astable and monostable multi vibrators, Sequence generator 5. voltage regulators using IC78xx, 79xx, LM 317 2 Matoshri College of Engineering & Research Center Nashik Unit 5_Module4
- 3. IC 555 –astable and monostable multi vibrators, Sequence generator 3 Matoshri College of Engineering & Research Center Nashik Unit 5_Module4
- 4. Content. 1. Introduction to Multivibrator. 2. IC-555 as Astable Multivibrator. 3. IC-555 as Monostable Multivibrator. 4. IC-555 as Sequence Generator. Unit 5_Module4 Matoshri College of Engineering & Research Center Nashik 4
- 5. Introduction to Multivibrator. Multivibrator is an electronics circuit which can have no, one or two stable state of operation. Depending on the number of stable state we can classify the multivibrator as shown below. Unit 5_Module4 Matoshri College of Engineering & Research Center Nashik 5 Multivibrator Astable Monostable Bistable
- 6. Functional Block Diagram of IC 555 Unit 5_Module4 Matoshri College of Engineering & Research Center Nashik 6
- 7. IC-555 as Astable Multivibrator. Unit 5_Module4 Matoshri College of Engineering & Research Center Nashik 7 Case 1 :- Charging of Capacitor. Case 2 :- Discharging of Capacitor. Voltage on pin no2(Trigger) is less than 1/3Vcc Voltage on pin no 6 (Threshold) is reached to 2/3Vcc
- 8. Unit 5_Module4 Matoshri College of Engineering & Research Center Nashik 8
- 9. Unit 5_Module4 Matoshri College of Engineering & Research Center Nashik 9 T= Tc + Td f = 1 / T
- 10. IC-555 as Monostable Multivibrator. Unit 5_Module4 Matoshri College of Engineering & Research Center Nashik 10 Case 1 :- Charging of Capacitor. Case 2 :- Discharging of Capacitor. Voltage on pin no2(Trigger) is high then capacitor start charging. Voltage on pin no 6 (Threshold) is reached to 2/3Vcc
- 11. Tc=1.1RC Td = 0 Unit 5_Module4 Matoshri College of Engineering & Research Center Nashik 11
- 12. Unit 5_Module4 Matoshri College of Engineering & Research Center Nashik 12
- 13. Thank you Mr. C. R. Shinde Electrical Engineering Department Matoshri College of Engineering & Research centre, Nashik If you have any query, ask me anytime on…… … .. . . . cshinde58@gmail.com chandrakant.shinde@matoshri.edu.in 9970031353 13 Matoshri College of Engineering & Research Center Nashik Unit 5_Module4