ENGINEERING TRIPOS PART IA - 2012/2013
PAPER 3 - ELECTRICAL and INFORMATION ENGINEERING
Linear Circuits and Devices
Leaders: Dr. C. Durkan/Dr. T. Flack
Timing: Weeks 3-8 Michaelmas term and weeks 1-3 Lent term
The course is accompanied by the following examples papers, with an indication of the time period of the lectures, and the timing of the associated examples class:
3/1 issued on 28th Oct, on Lectures 1-4 (29th Oct-11th Nov). Examples class on 25th Nov.
3/2 issued on 11th Nov, on Lectures 5-8 (12th Nov-25th Nov). Examples class on 2nd December.
3/3 issued on 25th Nov, on Lectures 9-12 (lectures 9 & 10 are before Christmas on the 26th of Nov & 2nd of Dec, 11 & 12 are after Christmas, on the 15th and 18th of Jan). Examples class on the 20th Jan.
3/4 issued on 20th Jan on Power lectures. Examples class 3rd Feb.
3/5 issued on 27th Jan, on Lectures 13-18 (20th-27th Jan). Examples class 10th Feb.
Structure: 22 lectures, (18 on linear circuits (CD), 4 on power flow (FU)), 2 lectures/week, in Michaelmas term, 3/ week in Lent term.
The aims of the course are to:
- Teach students how
electrical and electronic circuits are analysed, how field effect
transistors and amplifiers operate, how real and reactive power flows in a.c.
circuits, and to teach basic transformer theory.
As specific objectives, at the end of the course students should be able to:
- Know how Ohm's law, the
concepts of ideal voltage and current sources, and Thevenin's and Norton's
theorems are used by electrical engineers to calculate currents and
voltages in d.c. and a.c. circuits. To explain Kirchhoff's voltage and
current laws and show how they are applied to the analysis of electrical
- Know how power is
transferred from a source to a load and how any network can be represented
by a Thevenin or a Norton source.(Lecture 4).
- Understand how semiconductors can be doped to produce p-type and n-type semiconductors, introduce the p-n junction diode. (Lectures 5 & 6).
- Know the principles of
operation of the Field Effect Transistor (FET).(Lectures 6 - 8)
- Use complex numbers in the
analysis of a.c. circuits and keep track of amplitude and phase
simultaneously. Understand the importance of resonance and resonant frequency in electronic circuits.(Lectures 9-12).
- Know how an equivalent
circuit for an FET can be used in transistor circuits to determine the
small-signal performance of the circuits.(Lectures 13-14).
- Calculate the gain,
frequency response, and input and output impedances of amplifier circuits.(Lectures 15-16).
- Introduction to operational amplifiers (Op Amps), and understand how feedback can be used in amplifier circuits to improve frequency response, gain stability and output and input impedances. (Lectures 17-18).
- Understand the concepts of
real, reactive and apparent power, and power factor, the importance of
power factor correction of a.c. loads, the principles of operation of the
transformer, and the development and use of its equivalent circuit.
SYLLABUS (Book References)
- Mesh and nodal analysis (1)
34 - 39
- Thevenin's and Norton's
theorems, superpositions. (1) 50 - 57
- D.C. characteristics of:
- Diodes (1) 340 -
348 (2) 36 - 41
- Field effect transistors (MOSFET) (1) 362 - 367 (2) 62 - 66
- Operating point, load line
and graphical analysis of common source amplifier. (1) 556 - 559 (2) 48
- Alternating current
impedance, admittance, phasors, mutual inductance. (1) 151-163 (1)
- Circuits containing
R,L and C. Resonance. (1) 220-231
- Power in resistive loads,
r.m.s. quantities. (1) 79
- Amplifiers as building
blocks, decibels, mid-band gain, bandwidth, multistage amplifiers and
coupling. (1) 630 - 632 (2) 1 - 22
- Linearised models of F.E.T.
(1) 591 - 595 (2) 52 - 54
- Common source amplifier (2)
54 - 60
- Operational amplifiers,
characteristics, feedback, inverting and non-inverting configurations. (1)
518 - 53 (2) 114 - 137
- A.C. Power Flow (1)
205-213 (3) 7-12
- Real power (Watts),
reactive power (VARs), apparent power, power factor and its correction.
- Use of power and
reactive power to solve a.c. circuits.
- Single-phase Transformers (1)
690 - 710 (3) 67-78
- Principles of
- Development and use
of transformer equivalent circuit.
(1) AHMED, H. & SPREADBURY, P.J. ANALOGUE AND DIGITAL ELECTRONICS FOR ENGINEERS
(2) BRADLEY, D. BASIC ELECTRICAL POWER AND MACHINES
(3) HOROWITZ, P & HILL, W. THE ART OF ELECTRONICS
(4) SMITH, R.J. & DORF, R.C. CIRCUITS, DEVICES AND SYSTEMS
(5) WARNES, L.A.A. ELECTRONICS AND ELECTRICAL ENGINEERING
Please see the Booklist for Part IA Courses for module references.
Last updated: May 2012