Difference between revisions of "ECE 110/Concept List/S24"

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* $$i$$-$$v$$ relationships of various elements (ideal independent voltage source, ideal independent current source, short circuit, open circuit, switch)
 
* $$i$$-$$v$$ relationships of various elements (ideal independent voltage source, ideal independent current source, short circuit, open circuit, switch)
 
* Resistor symbol (and spring symbol)
 
* Resistor symbol (and spring symbol)
 +
 +
== Lecture 3 - 1/18 - Equivalents ==
 +
* Resistance as $$R=\frac{\rho L}{A}$$
 +
* $$i$$-$$v$$ relationship for resistors; resistance [$$\Omega$$] and conductance $$G=1/R$$ $$[S]$$
 +
* $$i$$-$$v$$ for dependent (controlled) sources (VCVS, VCCS, CCVS, CCCS)
 +
* Combining voltage sources in series; ability to move series items and put together
 +
* Combining current sources in parallel; ability to move parallel items and put together
 +
* Equivalent resistances
 +
** series and parallel
 +
** [[Examples/Req]]

Revision as of 21:06, 19 January 2024

Lecture 1 - 1/11 - Course Introduction, Nomenclature

  • Circuit terms (Element, Circuit, Path, Branch and Essential Branch, Node and Essential Node, Loop and Mesh).
  • Accounting:
    • # of Elements * 2 = total number of voltages and currents that need to be found using brute force method
    • # of Essential Branches = number of possibly-different currents that can be measured
    • # of Meshes = number of independent currents in the circuit (or generally Elements - Nodes + 1 for planar and non-planar circuits)
    • # of Nodes - 1 = number of independent voltage drops in the circuit
  • Electrical quantities (charge, current, voltage, power)

Lecture 2 - 1/16 - Electrical Quantities

  • Passive Sign Convention and Active Sign Convention and relation to calculating power absorbed and/or power delivered.
  • Power conservation
  • Kirchhoff's Laws
    • Number of independent KCL equations = nodes-1
    • Number of independent KVL equations = meshes
  • Example of how to find $$i$$, $$v$$, and $$p_{\mathrm{abs}}$$ using conservation equations and how to check using extra conservation equations
  • $$i$$-$$v$$ relationships of various elements (ideal independent voltage source, ideal independent current source, short circuit, open circuit, switch)
  • Resistor symbol (and spring symbol)

Lecture 3 - 1/18 - Equivalents

  • Resistance as $$R=\frac{\rho L}{A}$$
  • $$i$$-$$v$$ relationship for resistors; resistance [$$\Omega$$] and conductance $$G=1/R$$ $$[S]$$
  • $$i$$-$$v$$ for dependent (controlled) sources (VCVS, VCCS, CCVS, CCCS)
  • Combining voltage sources in series; ability to move series items and put together
  • Combining current sources in parallel; ability to move parallel items and put together
  • Equivalent resistances