1. CIRCUIT TERMINOLOGY CIRCUITS by Ulaby & Maharbiz All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press.

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Presentation transcript:

1. CIRCUIT TERMINOLOGY CIRCUITS by Ulaby & Maharbiz All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Chapter 1: Circuit Terminology  Electronics  Devices – active vs. passive  Circuits  Systems All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Cell-Phone Architecture All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Units, Multiples, Notation All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Tech Brief 1: Micro- and Nanotechnology All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Tech Brief 1: Moore’s Law All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Tech Brief 1: Micro- and Nanotechnology All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Tech Brief 1: Heat power Density by CPU All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Circuit Representation All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Common Circuit Elements All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Circuit Topology Branch: single element, such as a resistor or source Node: connection point between two or more branches Extraordinary Node: connection point between at least 3 branches Loop: closed path in a circuit node branch loop All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Terminology All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Planar Circuits  Planar circuits: can be drawn in 2-D without branches crossing each other  Whenever possible, re-draw circuit to simplify! All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Charge & Current  Unit of charge = coulomb All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Electron Drift Response time = 0.2 microsecond Actual travel time = 10 days!! All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Current All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Example 1-1: Charge Transfer  Given: Determine: (a) q(t) (b) Solution: All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Example 1-1: Charge Transfer (cont.) (b) All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Voltage & Power All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Reference/Gro und  Choose reference point for potential  Assign potential at reference = 0, called ground  Now all potentials are relative to ground terminal All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Measuring Voltage & Current  Voltmeter: measures voltage without drawing current  Ammeter: measures current without dropping voltage All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Open Circuit & Short Circuit  Open circuit: no path for current flow (R =  )  Short circuit: no voltage drop (R = 0) All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Power Rate of expending or absorbing energy Energy conservation Units: watts One watt = power rate of one joule of work per second. 1 W = 1 A x 1 V All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Passive Sign Convention All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Example 1-4: Energy Consumption  Given: Resistor consuming 20 W before switch turned off at t = 0. Also  Determine: Total energy consumed by resistor after t = 0.  Solution: (before t = 0) All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Circuit Elements: Independent Sources All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Circuit Elements: Dependent Sources All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

I-V for Sources  Current/voltage fixed for independent sources  What does a non-ideal source look like?  Dependent sources vary with reference voltage/current  What are units for slope? All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Equivalent Circuit Using Dependent Source All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Example 1-5: Dependent Source  Given: Determine: Solution: Source is CCVS All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Switches All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press

Summary All rights reserved. Do not reproduce or distribute. © 2013 National Technology and Science Press