Electronic Devices and Circuits
- Lecture Notes, Study Materials and Important questions answers

Subject : Electronic Devices and Circuits

PN JUNCTION DEVICES

1. Semiconductor: Diode - Answer (click here)
2. Review of Intrinsic and Extrinsic Semiconductors - Answer (click here)
3. PN Junction Diode:Operation, V-I characteristics of Forward and Reverse Bias Condition - Answer (click here)
4. Transition capacitances - Answer (click here)
5. Diffusion capacitance - Answer (click here)
6. Half Wave Rectifier: Characteristics and Working - Answer (click here)
7. Full wave rectifier: Center Tapped Full Wave and Full Wave Bridge Rectifier - Answer (click here)
8. Light Emitting Diode (LED) - Answer (click here)
9. Laser diode and its L/I characteristic - Answer (click here)
10. A Zener Diode and its characteristics, Regulator - Answer (click here)
11. Important Short Questions and Answers: PN Junction Devices - Answer (click here)

TRANSISTORS

1. Transistors: Types, Construction, Currents - Answer (click here)
2. Operation of an NPN and PNP Transistor - Answer (click here)
3. Configuration of Transistor Circuit: CB, CE, CC configuration Input and Output Characteristics - Answer (click here)
4. Common base(CB) configuration of Transistor - Answer (click here)
5. Common emitter (CE) configuration of Transistor - Answer (click here)
6. Common collector (CC) configuration of Transistor - Answer (click here)
7. Field Effect Transistor(FET) and its Operation - Answer (click here)
8. MOSFET (Metal Oxide Semiconductor Field Effect Transistor) - Depletion and Enhancement mode: Construction, Operation, Symbol, Characteristics - Answer (click here)
9. Biasing: Fixed Bias or Base Bias and Stability of Operating Point - Answer (click here)
10. Uni Junction Transistor (UJT): Construction, Operation, Characteristics, Applications - Answer (click here)
11. Silicon Controlled Rectifier (SCR): Construction, Working Principle - Answer (click here)
12. V-I Characteristics of SCR - Answer (click here)
13. DIAC (Diode A.C. Switch): Circuit symbol, Construction, Operation, V- I characteristics, Applications - Answer (click here)
14. TRIAC: symbol, basics, Operation, Characteristics, Advantages and disadvantages - Answer (click here)
15. Insulated Gate Bipolar Transistor(IGBT) and its Characteristics - Answer (click here)
16. Important Short Questions and Answers: Transistors - Answer (click here)

AMPLIFIERS

1. CE, CB and CC Amplifiers Circuits - Answer (click here)
2. Small Signal Low Frequency h-parameter Model - Answer (click here)
3. General shape of frequency response of amplifiers - Answer (click here)
4. Low frequency analysis of amplifier to obtain lower cut-off frequency - Answer (click here)
5. MOSFET small signal model Amplifiers - Answer (click here)
6. High frequency analysis of MOSFET - Answer (click here)
7. Frequency Response of Common Source Amplifier - Answer (click here)
8. Important Short Questions and Answers: Amplifier Circuits - Answer (click here)

MULTISTAGE AMPLIFIERS AND DIFFERENTIAL AMPLIFIER

1. Multistage Amplifiers - Answer (click here)
2. Advantages of Representation of Gain in Decibels - Answer (click here)
3. Basics of Differential Amplifier - Answer (click here)
4. Transistorised Differential Amplifier - Answer (click here)
5. Differential Mode Operation - Differential Amplifier - Answer (click here)
6. Common Mode operation and Configurations - Differential Amplifier - Answer (click here)
7. D.C. Analysis of Differential Amplifier - Answer (click here)
8. Tuned amplifier - Answer (click here)
9. General shape of frequency response of amplifiers - Answer (click here)
10. Neutralization Methods - Answer (click here)
11. Power Amplifiers - Answer (click here)
12. Important Short Questions and Answers: Multistage Amplifiers and Differential Amplifier - Answer (click here)

FEEDBACK AMPLIFIERS AND OSCILLATORS

1. Feed Back Amplifiers and Oscillators - Answer (click here)
2. Feedback: Positive and Negative feedback - Answer (click here)
3. Principles of Negative Voltage Feedback In Amplifiers - Answer (click here)
4. Gain of Negative Voltage Feedback Amplifier - Answer (click here)
5. Advantages of Negative Voltage Feedback - Answer (click here)
6. Effects of Negative Current Feedback - Answer (click here)
7. Oscillators - Answer (click here)
8. The Hartley Oscillator - Answer (click here)
9. The Colpitts Oscillator - Answer (click here)
10. Wien Bridge Oscillator - Answer (click here)
11. Quartz Crystal Oscillators - Answer (click here)
12. Important Short Questions and Answers: Feed Back Amplifiers and Oscillators - Answer (click here)