Introduction to Electrical Power System - different sources of electrical energy (conventional / alternate), Ideal Independent Current and Voltage Sources.
Reference Directions and Symbols; Resistance, Inductance and Capacitance, Series parallel combination of R, L and C Components.
Ohm’s law, Kirchhoff’s law, Energy and Power, Voltage Divider and Current Divider Rules, Network Analysis by Mesh Currents, Nodal analysis.
Faraday’s law of Electromagnetic Induction; Magnetic Circuit Elements; Analysis of magnetic Circuits, Self and Mutual Inductances.
Generation of alternating current, Sinusoidal voltage; Instantaneous, Average and rms values of periodic functions; Peak factor, form factor, Phasor representation of sinusoids, Real and Reactive Power, Power factor
Introduction to Three Phase Systems; Balanced 3-Phase STAR and DELTA connections of Load, Three phase power
Classification and Applications of Electrical Machines
DC Motor, Basic principle of operation, Different types of DC motors, Voltage equation of a motor, significance of back emf, Speed, Torque, Torque-Speed characteristics, Output Power, Efficiency.
3-Phase Induction Motor - Introduction: Principle of operation, rotating magnetic field, types of I.M, Slip, Rotor Speed, Torque-Slip Relation.
Single Phase Transformer - Principle of Operation, Voltage transformation ratio, emf equation, working of single phase auto-transformer, Three Phase Transformer Connections, Star-delta, star-star.
Introduction to semiconductors and doping: Intrinsic and extrinsic semiconductors, PN junction diode characteristics: forward and reverse bias – breakdown – barrier potential Rectifiers: half wave and full wave, Zener diode – design of regulators and Characteristics.
Introduction to BJT: BJT characteristics curves and region of operation, common emitter, common base configurations, MOSFET characteristics.
Introduction to Operational amplifier: inverting and non-inverting amplifier.
Introduction to logic gates: Boolean Algebra Theorems, De Morgan’s theorem. Logic gates, NOT Gate, AND Gate, OR Gate, XOR Gate, NAND Gate, NOR Gate, X-NOR Gate.
Microcontrollers: Introduction to Microcontrollers, 8051, Microcontroller, Architecture and an example of Microcontroller, based stepper motor control system (only Block Diagram approach).