Difference between revisions of "ECE 110/Concept List/S25"
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** # of Nodes - 1 = number of ''independent'' voltage drops in the circuit | ** # of Nodes - 1 = number of ''independent'' voltage drops in the circuit | ||
| − | + | == Lecture 2 - 1/13 - Electrical Quantities == | |
| − | |||
| − | |||
| − | == Lecture 2 - 1/ | ||
* Electrical quantities (charge, current, voltage, power) | * Electrical quantities (charge, current, voltage, power) | ||
* Passive Sign Convention and Active Sign Convention and relation to calculating power absorbed and/or power delivered. | * Passive Sign Convention and Active Sign Convention and relation to calculating power absorbed and/or power delivered. | ||
| Line 18: | Line 15: | ||
** Number of independent KVL equations = meshes | ** 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 | * Example of how to find $$i$$, $$v$$, and $$p_{\mathrm{abs}}$$ using conservation equations and how to check using extra conservation equations | ||
| + | |||
| + | |||
| + | == Lecture 3 - 1/15 - Sources and Resistors == | ||
* $$i$$-$$v$$ 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) | ||
| − | |||
| − | |||
* Resistance as $$R=\frac{\rho L}{A}$$ | * Resistance as $$R=\frac{\rho L}{A}$$ | ||
* $$i$$-$$v$$ relationship for resistors; resistance [$$\Omega$$] and conductance $$G=1/R$$ $$[S]$$ | * $$i$$-$$v$$ relationship for resistors; resistance [$$\Omega$$] and conductance $$G=1/R$$ $$[S]$$ | ||
* $$i$$-$$v$$ for dependent (controlled) sources (VCVS, VCCS, CCVS, CCCS) | * $$i$$-$$v$$ for dependent (controlled) sources (VCVS, VCCS, CCVS, CCCS) | ||
| + | |||
| + | == Lecture 4 - 1/22 - Equivalent Circuits == | ||
* Combining voltage sources in series; ability to move series items and put together | * 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 | * Combining current sources in parallel; ability to move parallel items and put together | ||
| Line 30: | Line 30: | ||
** series and parallel | ** series and parallel | ||
** [[Examples/Req]] | ** [[Examples/Req]] | ||
| + | ** Delta-Wye equivalencies (mainly refer to book) | ||
| + | <!-- | ||
== Lecture 4 - 1/23 - Brute Force Method; Delta-Wye; Voltage Division Part 1 == | == Lecture 4 - 1/23 - Brute Force Method; Delta-Wye; Voltage Division Part 1 == | ||
* Brute Force method | * Brute Force method | ||
| − | |||
* Voltage Division | * Voltage Division | ||
| − | == Lecture 5 - 1/25 - Voltage Division | + | == Lecture 5 - 1/25 - Voltage Division, Current Division, and Node Voltage Division Part 1 == |
* Voltage Re-Division | * Voltage Re-Division | ||
* Current Division and Re-Division | * Current Division and Re-Division | ||
Latest revision as of 16:27, 23 January 2025
Contents
Lecture 1 - 1/8 - 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
Lecture 2 - 1/13 - Electrical Quantities
- Electrical quantities (charge, current, voltage, power)
- 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
Lecture 3 - 1/15 - Sources and Resistors
- $$i$$-$$v$$ relationships of various elements (ideal independent voltage source, ideal independent current source, short circuit, open circuit, switch)
- Resistor symbol (and spring symbol)
- 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)
Lecture 4 - 1/22 - Equivalent Circuits
- 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
- Delta-Wye equivalencies (mainly refer to book)
