Lecture Electric circuits analysis

Lecture Network theory. After completing this section, you will understand knowledge about: network topology; maximum power transfer theorem; twoport network function and responces; electrical equivalents of magnetically coupled circuits; modeling of coupled circuit; series connection of coupled coils; analysis of coupled circuits; procedure of obtaining cut-set matrix,...

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Lecture ELEC2400 signals and systems: Chapter 4 - Laplace transform analysis. After completing this section, you will understand the knowledge about computation, properties, inverse laplace transform, differential equation solution via laplace transform and laplace transform in electrical circuits.

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The simplest and most fundamental nonlinear circuit element is the diode. Just like a resistor, the diode has two terminals; but unlike the resistor , which has a linear (straight-line) relationship between the current flowing through it and the voltage appearing across it, the diode has a nonlinear i-v characteristic. In this chapter, you will learn about: The ideal diode, terminal characteristics of junction diodes, modeling the diode forward characteristics, load line analysis.

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In this chapter, you will learn about: DC current and voltage analysis, DC analysis of transistor circuits, modes of operation of a BJT Transistor, transistor characteristics.

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The main contents of the chapter consist of the following: Graphical analysis of the BJT amplifier circuits, biasing the BJT for discrete-circuit design, small-signal operation and models.

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Small-signal modeling is a common analysis technique in electronics engineering which is used to approximate the behavior of electronic circuits containing nonlinear devices with linear equations. It is applicable to electronic circuits in which the AC signals, the time-varying currents and voltages in the circuit, have a small magnitude compared to the DC bias currents and voltages.

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It is shown that the use of the small signal transmission line equivalent circuit model is not restricted solely to the small signal a.c. analysis of semiconductor devices. Simple algorithms are described which allow it to be used to compute the d.c. and the large signal transient properties of semiconductor devices to any desired precision.

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In this chapter, the following content will be discussed: Three passive elements (resistors, capacitors, and inductors) individually, circuits having various combinations of two or three of the passive elements, RC and RL circuits, analysis of RC and RL circuits by applying Kirchhoff’s laws, the differential equations resulting from analyzing RC and RL circuits are of the first order. Hence, the circuits are collectively known as first-order circuits.

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In this chapter, the following content will be discussed: Identifying series-parallel relationships, analysis of series-parallel resistive circuits, voltage dividers with resistive loads, ladder networks.

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Lecture Electric circuits analysis - Lecture 31: Example related to the source-free Series RLC Circuit. In this chapter, the following content will be discussed: The source free parallel RLC circuit, step response of a series RLC circuit.

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Main topics covered during this course: Quantities and Units; voltage, current, and resistance; Ohm's Law; energy and power; series circuits; parallel circuits; series-parallel circuits; circuit theorems and conversions; branch, loop, and node analyses; capacitors, inductors; RL, RC, and RLC circuits.

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Lecture Electric circuits analysis - Lecture 14: Problem solving - Series parallel circuitsProblem solving-series parallel circuits. In this chapter, the following content will be discussed: Identifying series-parallel relationships, analysis of series-parallel resistive circuits, voltage dividers with resistive loads, ladder networks.

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In this chapter, the following content will be discussed: Identifying series-parallel relationships, analysis of series-parallel resistive circuits, voltage dividers with resistive loads, ladder networks.

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Lecture Electric circuits analysis - Lecture 17: Problems solving-superposition theorem. In this chapter, the following content will be discussed: analysis of series-parallel resistive circuits, voltage dividers with resistive loads, ladder networks.

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Thevenin's theorem provides a method for simplifying a circuit to a standard equivalent form. This theorem can be used to simplify the analysis of complex circuits. Lecture 18 provides knowledge of Thevenin's theorem.

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Like Thevenin's theorem, Norton's theorem provides a method of reducing a more complex circuit to a simpler equivalent form. The basic difference is that Norton's theorem results in an equivalent current source in parallel with an equivalent resistance. Lecture provides knowledge of problems solving related to thevenin's theorem - Norton’s Theorem.

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Lecture Electric circuits analysis - Lecture 20: Problems solving-Norton's theorem. In this chapter, the following content will be discussed: Problems solving-Norton's theorem, maximum power transfer theorem.

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In this chapter, the following content will be discussed: Deriving the initial equations, ∆-to-y conversion, application of ∆-to-y conversion to a bridge circuit, source conversions, the superposition theorem, Thevenin's theorem, Norton's theorem, maximum power transfer theorem.

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The branch current method is a circuit analysis method using Kirchhoff's voltage and current laws to find the current in each branch of a circuit by generating simultaneous equations. Once you know the branch currents, you can determine voltages. In this chapter, the following content will be discussed: Branch current method, loop current method, node voltage method.

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Another method of analysis of multiple-loop circuits is called the node voltage method. It is based on finding the voltages at each node in the circuit using Kirchhoff's current law. Recall that a node is the junction of two or more components.

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