EE 1270: Introduction to Electric Circuits

1
EE 1270 Introduction to Electric Circuits
Lecture 1 Introduction Chapter 1 Circuit
Variables
2
EE 1270 Introduction to Electric Circuits

• Overview of Electrical Engineering
• Power Systems (Classical EE)
• Generators nuclear,
• hydro (water), thermal (coal,gas)
• Power Lines transmission lines, distribution
• Grid System and Managment efficient
  distribution of electric power, redundancy to
  avoid black outs
• EE 4900 (Power Systems (?)) by Dr. Larry Zeng

3
EE 1270 Introduction to Electric Circuits

• Overview of Electrical Engineering
• Control Systems
• Regulate and control processes
• Control what? temperature (thermostat),
  pressure, flow rate (oil refinery), fuel-air
  mixture in cars, motors, doors, switches
  (everywhere), autopilot, sprinkler system and
  irrigation system
• EE 4100 (Control Systems) by Dr. Larry Zeng

4
EE 1270 Introduction to Electric Circuits

• Overview of Electrical Engineering
• Computer Systems
• Computing Pocket calculators, computers,
  supercomputers, embedded processors
• Processors Central Processing Unit (CPU),
  Microcontroller unit (MCU), Digital Signal
  Processor (DSP)
• EE 3610 (Digital Systems), EE 3710 (Embedded
  Systems), EE 4710 (Real-Time Systems) by Dr. Fon
  Brown

5
EE 1270 Introduction to Electric Circuits

• Overview of Electrical Engineering
• Signal Processing
• Transform electric signals into information
  process data from satellites, CT scanners, MRI,
  smart phones
• EE 3210 (Signals and Systems), EE 4210 (Digital
  Signal Processing) by Dr. Larry Zeng

6
EE 1270 Introduction to Electric Circuits

• Overview of Electrical Engineering
• Communication Systems
• Generate, transmit and distribute information
  radio, cell phones/smart phones, satellite
  communication systems, radio telescopes, wireless
  communication
• EE 3110 (Microelectronics I), EE 3120
  (Microelectronics II) by Dr. Justin Jackson, EE
  4410 (Communication Circuits and Systems) by Dr.
  Chris Trampel

7
EE 1270 Introduction to Electric Circuits

• Overview of Electrical Engineering
• Sensors and Sensor electronics gather data to
  be processed later
• Electromagnetics classical study of
  electrostatics (capacitors), magnetostatics
  (inductors) and Maxwells equations

8
EE 1270 Introduction to Electric Circuits

• Overview of Electrical Engineering
• It's all related - Multidisciplinary Field

9
EE 1270 Introduction to Electric Circuits

• Overview of Electrical Engineering
• It's all related - Multidisciplinary Field

10
EE 1270 Introduction to Electric Circuits

• Overview of Electrical Engineering
• It's all related - Multidisciplinary Field

11
EE 1270 Introduction to Electric Circuits

• Overview of Electrical Engineering
• It's all related - Multidisciplinary Field

12
TABLE 1.2 Derived Units in SI
Common SI Units
13
TABLE 1.3 Standardized Prefixes to
SignifyPowers of 10
Power of Ten
14
Electric Effects Voltage and Current
Positive Charge
Negative Charge
Voltage is due to separation of ChargeElectric
Force Current is due to motion of ChargeElectric
Flow
15
Figure 1.5 An ideal basic circuit element
16
Passive Sign Convention

i
-

• Current flows from positive terminal to negative
  terminal (positive charge moves from positive to
  negative)It can be a Resistor, Capacitor,
  Inductor or in general any circuit element

17
Assessment Problem 1.3, 1.4
18
Figure 1.6 Power
19
Problem 1.15