Let us consider the circuit analysis method, using a tree structure. For example, we take a tree of the graph and arbitrary link. They…
Category: Circuit Fundamentals
Circuit Fundamentals: Preface
Aim of the study element
To explain basic concepts of circuit theory, and explain techniques needed to analyse simple linear and non-linear circuits.
Learning outcome
Having successfully completed this element you will be able to:
- Understand the building blocks of circuit theory.
- Understand the key concepts in circuits, such as impedance, current, power, voltage.
- Analyse ideal simple analogue circuits.
- Analyse circuits using complex numbers.
- Build and undertake measurements for simple analogue circuits.
- Select and use propper mathematical tools for the solution of problems in circuits.
Equivalent voltage and current sources
Equivalent voltage and current sources are equivalent - if you are replacing one with another and the rest of the circuit response is the…
Two-node scheme transformations
Let us consider the circuit in Figure 27a. Converting voltage sources to the current sources we achieve the scheme in Figure 27b. All the…
Sources shift in an electric circuit
Calculation of the electric circuit can be simplified by moving voltage and current sources. How to move them along the circuit is described here.…
Thevenin’s and Norton’s Theorems
Now we will study theorems which help to determine parameters of only a part of an electric circuit, for example current, voltage and power…
Quiz
Solve these problems and submit your answers down in the comments. Problem 1. Find equivalent resistance Req for the network of resistances in Figure…