Chapter5:-other analog circuits

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
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Matoshri College of Engineering & Research Center Nashik
Unit 5_Module4

3. IC 555 –astable and monostable multi
vibrators, Sequence generator
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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.
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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.
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Multivibrator
Astable Monostable Bistable

6. Functional Block Diagram of IC 555
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7. IC-555 as Astable Multivibrator.
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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

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T= Tc + Td f = 1 / T

10. IC-555 as Monostable Multivibrator.
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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
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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
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Matoshri College of Engineering & Research Center Nashik
Unit 5_Module4