Contents

1. Electronic Devices

1.1 Introduction

1.2 Comparison of Conductor Insulator and Semiconductor

1.3 Diode

1.4 Transistors

1.5 Power Devices

1.6 Photo Devices

2. Power Supply

2.1 Rectifier

2.2 Filters

2.3 Power Supply

2.4 Uninterruptable Power Supply (UPS)

3. Transistor

3.1 Introduction

3.2 Transistor as a switch and amplifier

3.3 Single Stage Transistor Amplifier

3.4 Multistage Amplifier

3.5 Power Amplifier

3.6 Oscillator

3.7 Transistor Biasing

4. OPAMP

4.1 Introduction

4.2 Basic Block Diagram of Opamp

4.3 Opamp Configuration

4.4 Closed loop Configuration

4.5 Adder Circuits (Summing Amplifier)

4.6 Instrumentation Amplifier (IA)

4.7 Voltage to current converter

4.8 Current to voltage converter

4.9 COMPARATORS

4.10 Differentiator

4.11 Wien Bridge Oscillator

5. Digital Electronics

5.1 Introduction

5.2 Number systems

5.3 Study of Logic Gates

5.4 Digital Circuits

5.5 Flip-Flops (One bit memory cells)

5.6 Multiplexer (Data Selector)

5.7 De-Multiplexer

5.8 Encoders

5.9 Decoders

5.10 BCD to seven segment Decoder/Driver

6. IC 555

6.1 Introduction

6.2 Block diagram of IC 555 Timer

6.3 Pin Function

6.4 Modes of Operation of IC 555

6.5 ADC and DAC Data Converters

6.6 Welding Control Circuits

6.7 SCR Line Contactor