ELCT 102 - ELECTRICAL SCIENCE

Meeting Times:

TTH 11:40AM-12:55PMroom B213 300 Main St.

Instructor: Grigory SIMINRoom 3A16 SWNG

simin@engr.sc.edu

TA: Bojidha BabuRoom 3A51 SWNG bbabu@email.sc.edu

What is Electrical Engineering?

Electrical engineering is the profession concerned

with systems that produce, transmit, and measure

electric signals.

Over the past century and a half, electrical engineers have played a dominant role in the development of systems that have changed the way people live and work.

Satellite communication links, telephones, digital computers, televisions, diagnostic and surgical medical equipment, assembly-line robots, and electrical power tools define a modern technological society.

A BRIEF HISTORY

Time charts: (a) long-range; (b) expanded.

1958— First integrated circuit (IC) made by Jack Kilby - Nobel Prize Award 2000

Vexing problem by the late ’50s: all those discrete components — transistors, diodes, capacitors etc. — still had to be connected manually to form electronic circuits.

1988: CRAY X-MP/48 supercomputer: four central processors, 8 Mb shared memory, 128 MB solid state memory, 1-gigaflop

1996: ASCI RED (Sandia Labs). System Footprint ~2500 Square FeetPower consumption: 500 kWNumber of Cabinets (Computer / Switch / Disk): 104System RAM: 1212 GBSystem Peak Performance: 3.1 TOPs

2007: Intel's 1 TOPs Processor.Power consumption: 62 WClock frequency: 3.16 GHz

1996: ASCI RED (Sandia Labs). ~2500 Square FeetPower consumption: 500 kWSystem Peak Performance: 3.1 TOPs

iPhone 4 System board

http://electronicdesign.com/article/components/the-pulse-quickens-for-cutting-edge-medical-electr.aspx

Glasgow University Electronic capsule (2008)

Si-diode: measures body temperature, compensates system changes due to temperature variations.Ion-selective FET: reveals pathological conditions related to abnormal PH levelsPair of direct-contact Gold electrodes: measure conductivityElectrochemical cell: detects the level of oxygenRadio transmitter: data transfer rate – 1 kbs, frequency - 40 MHz, consumption 2.2 mA2 Silver-Oxide batteries: 3.1 V, 40 hrs

Microelectronic Capsule

2009 Philips Electronic pill: The pill finds its way to a tumor, dispenses drugs onto it—and only it—and then passes harmlessly from the body. It replaces conventional chemotherapy drugs that also kill off normal tissue

Inside the iPillDrug supply,Fluid pump: A stepper motor drives a piston in the reservoir to dispense drugs through a tiny hole. pH sensor: tells doctors where it is. The stomach has a pH of 1 or 2, the small intestine 5 - 6, the colon ~ 4.Thermometer: records when the iPill enters the body—and when it leaves, 24 hours later.Brains: Doctors program a microprocessor with the exact location, pH conditions and transit time at which the pill should release the drug.Communication: A radio transmitter and antenna relay the pH and temperature data to an external computer.

Early Warning Radar: U.S. early warning radars are large, fixed, phased-array surveillance radars used to detect and track ballistic missiles

Power converters

Communication systems:

televisions, cameras,

transmitters, receivers, and

VCRs; radio telescopes, used to

explore the universe; network

and satellite systems, radar

systems, telephone systems...

EE systems and components

Communications: 100 years ago

Telegraph operator printing telegram, 1908, courtesy Library of Congress

On January 27, 2006, Western Union sent its final telegram.

Communications: 100 years ago

Communications today: Mobile Satellite Services

Convergence of Terrestrial and Satellite mobile communication systems

Terrestar Satellite Phone has satellite, quad-band GSM, tri-band WCDMA/HSPA connectivity along with Bluetooth and WiFi.

Communications today: GPS

The GPS system combined with computer electronics and software also forms a Signal Processing System

Control systems: use electric

signals to regulate processes.

Examples: Temperature, pressure,

flow rates regulators; fuel-air

mixture control in a fuel-injected

automobile engine.

Motors, doors, elevators controls.

Locks in the Panama Canal.

The autopilot and autolanding

systems.

Control system example: dark activated switch

Actual system Model (electric circuit)

Signal-processing systems: transform the signals and the information contained

in them into a suitable form.

Computerized tomography takes signals generated by an X-ray machine and transforms them into an image.

Original X-ray signals are of little use to a physician; once they are processed into a recognizable image the information they contain can be used in the diagnosis of disease or injury.

Modern electronic systems are highly sophisticated; they combine control, signal processing, communication,

power and computer systemsA sophisticated communications system enables the pilot and the air traffic controller to monitor the plane’s location.

Onboard computer system manages engine functions, implements the navigation and flight control systems, and generates video information on screens in the cockpit.

A complex control system uses cockpit commands to adjust the position and speed of the airplane.

Power system provide and distribute the electric power needed for computers, to control the engines, keep the cabin lights on, A/C, show the movie etc.

Signal-processing systems reduce the noise in air traffic communications and transform information about the plane’s location into the image on display.

Electrical Engineeringlacking Electrical Science

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ELCT 102 syllabus

1. Electrical charges and electrical forces2. Free electrons, conductors and insulators3. Electrical current and voltage4. Ohm’s law, Resistance and resistivity5. Kirchhoff Voltage and Current conservation laws (KCL and KVL)6. Electrical power and energy

7. Batteries and power sources.8. Resistors, capacitors and inductors.9. Semiconductor materials 10. Diodes and transistors11. Principles of micro-fabrication and microelectronics

I. Fundamentals of electricity

II. Electrical network components

ELCT 102 objectives1. Students will demonstrate the understanding of and the ability to solve

problems on the electric charge interactions, electric field and voltage.2. Students will demonstrate the ability to evaluate the parameters of basic

electronic components (wires, resistors, capacitors, diodes etc.) based on their physical parameters and dimensions.

3. Students will be able to solve problems on basic DC networks using Ohm’s law.

4. Students will demonstrate the ability to analyze DC circuits using Kirchhoff’s current and voltage laws.

5. Students will be able to solve problems on power dissipation in basic DC networks.

6. Students will demonstrate the ability to evaluate basic parameters of capacitors and inductors and of the series and parallel connections of those.

7. Students will be able to analyze and evaluate the characteristics of semiconductor resistors, diodes and transistors.

8. Students will demonstrate the ability to use computer tools (EXCEL, MATLAB) to solving basic DC networks and simulating the current - voltage characteristics of diodes and transistors.

Class WEB Page:http://www.ee.sc.edu/classes/Spring14/ELCT102

http://www.ee.sc.edu/classes/Spring14/ELCT102

Most of assignments will be given: using LON-CAPA

http://lon-capa.engr.sc.edu/

Login name: same as your EE account name (the one in front of @email.sc.edu)must be low-case letters!

Initial password:Your VIP ID number After the first logon you can change the password.

ELCT 102 textbook

Introductory Circuit Analysis (12th Edition)

by Robert L. BoylestadPublisher: Prentice Hall;

# ISBN-10: 0137146663# ISBN-13: 978-0137146666

Grading: HWs (7 – 8) 50%Midterm (1) and Test(3) 25% Final Exam 25%

Assignment and reporting policy:

• Absence in the class will not be taken as an excuse for zero assignment scores.

• Students must have laptops at every ELCT102 session.

• Students may use their notes when taking tests unless instructed otherwise by the instructor.

• The assignment report must show in detail all the steps toward the solution.

• The solution must include the key steps shown with formulas before substituting the numbers.

Approximate Grading scale score ≥ 93: A88 ≤ score <93: B+83≤ score <88: B78≤ score <83: C+73≤ score <78: C60≤ score <73: D score < 60: F

Student privacy policy and grade posting

No student names or SSN or any part of it will be used to identify the student in the

score sheets or any other documents.

The grades will be posted on the class WEB page (Notes section) without using the

student names. Instead, a 3-digit number will be used.

The 3-digit number will be e-mailed to every student. This unique number

will ONLY be used to identify the student in the score/grade sheets posted on the

WEB.