Unit 1.............................................7
Rectifiers and Power Supply
1.1 Introduction to rectifiers
1.2 Half wave rectifier
1.3 Full wave rectifier
1.4 Full wave bridge rectifier
1.5 Ripple Factor – (r)
1.6 Filters
1.7 D.C. Power Supply (Regulated and Unregulated)
1.8 Zener diode
1.9 Zener diode as voltage regulator

Unit 2................................................40
Bipolar Junction Transistors
2.1 Introduction
2.2 Basic construction of bipolar transistors (NPN and PNP)
2.3 Transistor biasing
2.4 Origin of name of transistor
2.5 Operation of n – p – n transistor
2.6 Transistor configurations (or connections)
2.7 Transistor static characteristics
2.8 Transistor load line analysis
2.9 Transistors can be used as a switch and as a Amplifier

Unit 3..........................................................71
Digital Electronics
3.1 Introduction
3.2 Concept of Positive and Negative Logic
3.3 Digital circuits and Digital Signal
3.4 Use of Digital circuits
3.5 Number system
3.6 Bits, Bytes, Nibbles and Word Size
3.7 Introduction to Logic gates
3.8 Demorgan’s Theorems
3.9 NAND and NOR realization of logic gates
3.10 NAND and NOR gates acts as universal logic gates
3.11 Binary Arithmetic
3.12 1’s and 2’s Complement of binary number
3.13 Binary Subtraction using 1’s compliment and 2’s complement
3.14 Introduction to Basic Digital Adders and Subtractors
3.15 Combining Logic Gates
3.16 Constructing Boolean Expression from Truth Table