Lecture 231 Circuits with Series and Parallel Resistors/Impedances.
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Lecture 231 Circuits with Series and Parallel Resistors/Impedances
Lecture 232 Solving Circuits with Series and Parallel Combinations The combination of series and parallel impedances can be used to find voltages and currents in circuits. This process can often yield the fastest solutions to networks. This process may not apply to complicated networks.
Lecture 233 Series and Parallel Impedances Impedances are combined to create a simple circuit (usually one source and one impedance), from which a voltage or current can be found Once the voltage or current is found, KCL and KVL are used to work back through the network to find voltages and currents.
Lecture 234 1k 2k 1k 2k 1k + - 10V + - V1V1 + - V3V3 + - V2V2 Example: Resistor Ladder Find V 1, V 2, and V 3
Lecture 235 1k 2k 1k 2k 1k + - 10V + - V1V1 + - V3V3 + - V2V2 Example: Resistor Ladder Find an equivalent resistance for the network with V 1 across it, then find V 1 using a voltage divider.
Lecture 2319 MATLAB MATLAB can perform computations with complex numbers. You can use it as a calculator to compute phasors and impedances for AC SS analysis. You can also use it to automate computations of frequency responses.
Lecture 2320 Using MATLAB Entering a complex number: >> 1+2j ans = 1.0000 + 2.0000i Multiplying complex numbers: >> (1+2j)*(3+4j) ans = -5.0000 +10.0000i
Lecture 2321 Example: Notch Filter Find V out Use = 1500 1k 0.1 100 + - 10V 0 + - V out 70.4mH 100 F