ee-4232 wave shaping circuits - educypediaeducypedia.karadimov.info/library/wave-shaping.pdf ·...
TRANSCRIPT
![Page 1: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/1.jpg)
0
EE-4232
Wave Shaping Circuits
![Page 2: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/2.jpg)
1
A popular limiter circuit.
![Page 3: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/3.jpg)
2
Transfer characteristic of the limiter circuit
![Page 4: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/4.jpg)
3
When Rf is removed the limiter turns into a comparator with characteristics shown.
![Page 5: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/5.jpg)
4
A Wien-bridge oscillator with a limiter used for amplitude control.
![Page 6: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/6.jpg)
5
A Wien-bridge oscillator with an alternative method for amplitude stabilization.
![Page 7: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/7.jpg)
6
Practical phase-shift oscillator with a limiter for amplitude stabilization.
![Page 8: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/8.jpg)
7
(a) A quadrature oscillator circuit. (b) equivalent circuit at the input of op amp 2.
![Page 9: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/9.jpg)
8
Block diagram of the active-filter tuned oscillator.
![Page 10: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/10.jpg)
9
Practical implementation of the active-filter tuned oscillator.
![Page 11: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/11.jpg)
10
The bistable circuit with the negative input terminal of the op amp disconnected from ground and connected to an input signal vI.
![Page 12: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/12.jpg)
11
The transfer characteristic of the circuit for increasing vI.
![Page 13: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/13.jpg)
12
The transfer characteristic for increasing vI.
![Page 14: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/14.jpg)
13
The complete transfer characteristics.
![Page 15: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/15.jpg)
14
Illustrating the use of hysteresis in the comparator characteristics as a means of rejecting interference.
![Page 16: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/16.jpg)
15
Connecting a bistable multivibrator with inverting transfer characteristic in a feedback loop with an RC circuit results in a square-wave generator.
![Page 17: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/17.jpg)
16
The circuit obtained when the bistable multivibrator is implemented with the previous circuit
![Page 18: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/18.jpg)
17
Waveforms at the various nodes of the previous circuit. This circuit is called an astable multivibrator.
![Page 19: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/19.jpg)
18
General scheme for generating triangular and square waveforms.
![Page 20: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/20.jpg)
19
The 555 timer connected to implement a monostable multivibrator.
Waveforms of the circuit.
![Page 21: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/21.jpg)
20
(a) The 555 timer connected to implement an astable multivibrator. (b) Waveforms of the circuit in (a).
![Page 22: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/22.jpg)
21
Using a nonlinear (sinusoidal) transfer characteristic to shape a triangular waveform into a sinusoid.
![Page 23: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/23.jpg)
22
(a) A three-segment sine-wave shaper. (b) the input triangular waveform and the output approximately-sinusoidal waveform.
![Page 24: EE-4232 Wave Shaping Circuits - Educypediaeducypedia.karadimov.info/library/Wave-Shaping.pdf · · 2001-12-19Wave Shaping Circuits. 1 A popular limiter circuit. 2 Transfer characteristic](https://reader031.vdocument.in/reader031/viewer/2022013014/5aab267e7f8b9aa06a8b98a2/html5/thumbnails/24.jpg)
23
References
• Electronics by A. Hambley• Microelectronics Circuits by Sedra & Smith• Other books on Electronics