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MEEM 2029-Chapter 1

# MEEM 2029-Chapter 1 - MEEM 2029 Course Aims Objectives To...

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1 1 Course Aims & Objectives: Course Aims & Objectives: To understand, operate and maintain electrical systems To be familiar with basic knowledge of electrical engineering To learn the basic calculation/analysis of electrical systems To communicate and cooperate with electrical/manufacturing engineers and consultants Course Overview: Course Overview: One of a few MEEM core courses Grading policy and weights 20%: 3 Labs and reports 20%: Midterm exam (close book, week 10) 60%: Final exam (close-book) Text Book: Text Book: Allan R. Hambley, Electrical Engineering, Principles and Applications, Prentice Hall, 4 th Edition 2008. Supplementary Notes MEEM 2029 Instructors: Z.K. Wang (Email: [email protected]) Y.G. Shen (Email: [email protected]) 2 Introduction to circuits: currents, and voltages; power and energy; Kirchhoff's current law; Kirchhoff's voltage law; loops and nodes Resistive circuits; Thevenin and Norton equivalent circuits; node/mesh/superposition analysis Inductance and capacitance; L and C transients; 1st order circuits Phasors; frequency response; Bode plots; resonance; transfer function; filters (1st order filters) Diode circuits: basic concepts; load-line analysis of diode circuits; ideal-diode model; piecewise-linear diode models; rectifier circuits; voltage doubler Bipolar junction transistor: analysis and design of amplifiers; common-emitter amplifiers; emitter followers Operational amplifiers: ideal operational amplifiers; inverting and non-inverting amplifiers; op-amp imperfections in the linear range of operation; integrators and differentiators Magnetic circuits and transformers Topics Covered

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2 3 Chapter 1: Introduction Outline Outline Electrical quantities (definition and concept) Charge Current Voltage Power Energy The ideal basic circuit element Sign conventions Circuit element I-V characteristics Construction of a circuit model Kirchhoff’s laws-a closer look KCL ( K irchhoff’s C urrent L aw ) KVL ( K irchhoff’s V oltage L aw ) Reading Reading Chapter 1 and beginning of Ch. 2 4 1.1. Why Study Electrical Circuits? Example of Circuit
3 5 Electrical Circuit 1.2. Circuits, Currents and Voltages (1) Basic concepts Voltage v [V: volts] Current i [A: amperes] Resistance R [ : ohms] Charge q [C: coulombs] dq dq dt dt Electric current is the time rate of charge flow. i = dq/dt [C/s=As/s=A] 6 Charge q is an electrical property of the atomic particles. one electron charge q is 1.6 x10 -19 C ; or one C of charge requires 6.24 x 10 18 electrons Law of conservation of charge: charge cannot be created or destroyed, only transferred. Current is conserved. i o i 1 i o = i = i 1 + i + i 2 i 2 (a) Current is physically realized by movement of electrons.

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MEEM 2029-Chapter 1 - MEEM 2029 Course Aims Objectives To...

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