## Announcements

#### You are advised to check this section regularly.

##### EST Answer Sheets

###### May 23, 2018

**Fibre Optics Lab (FOC)**.

##### After MST Quiz

###### May 2, 2018

**Time : 5 pm**

##### Lab Manuals

###### May 2, 2018

##### Tutorial Solutions

###### May 1, 2018

##### MST Answer Scripts

###### April 3, 2018

## Quiz Marks

#### Students are advised to view marks according to their groups.

## Course handout

#### This covers the complete syllabus of UEC301 course.

### Course objective:

- The aim of this course is to familiarize the student with the analysis and design of basic transistor amplifier circuits, oscillators and wave shaping circuits.

### Course learning outcome (CLO): The student will be able to:

- Analyze different biasing circuits and low frequency response of an amplifier using h parameters.
- Develop an ability to analyse high frequency transistor model.
- Explain various multistage and power amplifier configurations.
- Explain the concept of feedback and its characteristics.
- Explain the principles of oscillation and design various oscillator circuits.
- Analyse various filters and multi-vibrators circuits.

### Detailed Syllabus:

- Transistor Biasing: The Operating Point, Biasing Stability, Self-Biasing or Emitter Bias, Stabilization against Variations in I
_{CO}, V_{BE}, and β, Bias Compensation, Transistor at Low Frequencies: h parameter, simplified CE hybrid model, analysis of a transistor amplifier circuit using h parameter. - Transistor at High Frequencies: The Hybrid-pi (II) Common-emitter Transistor Model, Hybrid-II conductances, The Hybrid-II Capacitances, analysis of a transistor amplifier circuit at high frequencies.
- Multistage Amplifiers: Classification of amplifiers, Distortion in amplifiers, Frequency response of an amplifier. The RC-coupled amplifier, Low-frequency response of an RC-coupled stage, Effect of an emitter Bypass capacitor on low-frequency response.Class A, B, AB, Push pull & Class C amplifiers, Comparison of their Efficiencies, Types of distortion.
- Feedback Amplifiers: Classification of Amplifiers, The feedback concept, The transfer gain with feedback, General characteristics of negative-feedback amplifiers, Input resistance, Output resistance, Block diagrams of Voltage-series feedback, Current-series feedback, Current-shunt feedback, Voltage-shunt feedback.
- Stability and Oscillators: Sinusoidal Oscillator, The phase-shift oscillator, Resonant-circuit oscillators, A General form of oscillator circuit, The Wien Bridge oscillator, Crystal oscillator, Frequency Stability.
- Wave shaping circuits: Multi-vibrators (Astable, Mono-stable, Bi-Stable), High pass and low pass filters using R-C Circuits and R-L, R-L-C Circuits & their response to step input, Pulse input, Square input and Ramp Input, Attenuators.

**Laboratory:** Frequency response analysis of RC coupled amplifier, Tuned amplifiers, Push-pull amplifier, Feedback amplifier.Hartley and Colpitts Oscillator. RC Phase shift oscillator. Study of Multi-vibrators (Astable, Mono-stable, Bi-stable Multi-vibrator). Clipper and Clamper circuit, Schmitt Trigger.

### Text Books:

- Milliman, J. and Halkias, C.C., Intergrated Electronics, Tata McGraw Hill (2007).
- Milliman, J. &Taub, H., Pulse, Digital and switching waveforms, Tata McGraw Hill (2007).

### Reference Books:

- Malvino, L., Electronic principles, Tata McGraw Hill (1998).
- Cathey, J. J., 2000 Solved Examples in Electronics, McGraw Hill (1991).

### Marks Distribution

# | Examination | Marks |
---|---|---|

1 | LAB | 15 |

2 | QUIZ | 20 |

3 | TUT | 05 |

4 | MST | 24 |

5 | EST | 36 |

T O T A L : | 1 0 0 |

## Tutorial Sheets

#### Course tutorial sheets with solution.

##### Power circuits: Systems

###### Tutorial Sheet 8

##### Oscillators-1

###### Tutorial Sheet 9

## Lab Experiments

#### Lab Manuals for all the experiments of this course.

##### Experiment 1

Use of Astable Multivibrator and Calculate the frequency by changing the base resistance/capacitance.

Download##### Experiment 2

Use of Monostable Multivibrator and find the pulse width by varying the value of base resistance Q_{2}.

##### Experiment 3

Plot timing diagram of Bistable Multivibrator and use it as divided by two unit.

Download##### Experiment 4

Operation of Hartley and Colpitts Oscillatorand the effect of variation in amplitude and frequency with C.

Download##### Experiment 7

Draw Push-Pull Amplifier circuit. Measure the output impedance and also find the Bandwidth of a Push-Pull amplifier.

Download##### Experiment 8

Design and study RC phase shift oscillator. Find the Frequency and compare with calculated frequency.

Download##### Experiment 9

Top plot the frequency response curve of a tuned amplifier and determine its bandwidth.

Download##### Experiment 10

To observe the property of current series feedback amp using CE transistor amp with an unbypassed emitter resistor.

Download##### Experiment 11

To study the two stage R.C. coupled amplifier and 1)Find its bandwidth 2)Find i/p and o/p impedance

Download## Learning Resources

#### Explore the below course reference material.

##### Multivibrators

These are sequential logic circuits that operate continuously between two distinct states of HIGH and LOW.

Learn more