Principles of Electronics

Basics of Electronic Components and Circuit Design

Electronics & Robotics 4.9(97)4h 51m24 lectures2 sections

What you'll learn

Understand the importance of electronics and its history
Get to know semiconductors
Tell the types of electricity and alternating current apart
Apply Ohm's law and Kirchhoff's law
Use measuring instruments
Get to know resistors, capacitors and transformers
Understand diodes, transistors and LEDs
Design an AC rectifier circuit
Understand the introduction to modern electronics

About this course

This course explains the principles of electronics, the basics of electronic components and circuit design. You start with an introduction to the importance of electronics, its history and applications, then learn about semiconductors and the electronics industry. After that you study the types of electricity in three parts, the properties of alternating current, wires and types of connections, Ohm's law and Kirchhoff's law, and measuring instruments. Then you move to electronic components: resistors, capacitors, transformers, diodes, transistors and LEDs. Next the course explains the AC rectifier circuit and circuit design, and ends with an introduction to modern electronics and a downloadable course book. The course suits engineering students, beginners, electronics hobbyists and anyone who wants to understand the devices around them. You need no previous experience, as it starts from the basics. By the end you will be able to read simple circuits, understand what each component does, design a simple circuit and apply the basic laws of electricity to it.

Expected outcomes

Understand the components of electronic circuits and how they work.
Design simple electronic circuits using basic components.
Apply basic electrical laws to practical projects.
Learn how electronics can improve our daily lives.
Prepare to delve into advanced topics in electronics.

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Course content

Principles of Electronics

23 lectures

IntroductionCourse introduction showing why electronic circuits matter in the devices around us and outlining the topics: current and voltage, electric circuits, electronic components, logic circuits, practical projects and advanced technologies.3:21
Importance of Electronics ScienceExplains the importance of electronics and its applications in daily life such as household appliances, refrigerators and washing machines, in industry such as production and packaging lines, and in medicine.12:02
History of Electronics Over TimeTells the history of electronics, from the early science of electricity and magnetism and the discovery of the diode, to radio, television, the transistor, the microprocessor and the personal computer, up to modern technologies.8:37
Applications of Electronics FieldPresents applications of electronics, starting with the motherboard, then communication devices such as phones and routers, medical devices, industrial machines and production lines, and military uses like remote control devices.7:20
SemiconductorsExplains semiconductors as the foundation of electronic components, how they differ from conductors and insulators, silicon, and the doping process that produces N-type (negative) and P-type (positive) crystals.22:48
Electronics ManufacturingExplains the stages of building an electronic circuit: defining its requirements, designing it in a tool like Tinkercad, making the PCB and soldering the components, then testing and running the circuit.10:30
Types of Electricity (Part One)Explains what electricity and electric current are, as the movement of electrons inside a conductor, a simple circuit of battery, lamp and switch, magnetic fields, and how steam power stations generate electricity.18:42
Types of Electricity (Part Two)Explains the difference between electric current measured in amperes and voltage measured in volts, the role of resistance, and illustrates how they relate with an example of a pump irrigating a field.15:03
Types of Electricity (Part Three)Explains the two types of electric current: AC, which changes direction and value in a wave, and DC, which stays constant in value and direction, and why AC is generated and then converted to DC for electronic circuits.14:22
AC Current CharacteristicsExplains the properties of alternating current (AC) such as the cycle, Time Period and Frequency with its formula, voltage value, transmitting power at high voltage then stepping it down with transformers, and its uses.15:39
Wires and Connection TypesExplains types of electrical wires and electronic circuit wires, the criteria for choosing the right wire, and series versus parallel connections and how voltage, current and resistance behave in each.12:51
Ohm's Law and Kirchhoff's LawExplains Ohm's law linking current, voltage and resistance, and Kirchhoff's current and voltage laws, with worked examples, and why they matter for calculating current and voltage in circuits.10:15
Measuring DevicesExplains electrical measuring instruments, base and sub-units, the structure of the Avometer or multimeter, and how to measure current in series, voltage in parallel and resistance, as well as testing wires.17:25
Introduction to Electronic ComponentsIntroduction to electronic components and why they are used, covering the purpose of resistors, capacitors, inductors, transformers and diodes in circuits, such as controlling current, smoothing and rectifying AC.10:04
ResistorsExplains Resistors and how they oppose electric current, calculating their value with Ohm's law, reading their value from the color bands, the Tolerance error rate, and their importance in circuits.15:39
CapacitorsExplains Capacitors and their two-plate structure, calculating capacitance in farads from plate area and the distance between them, and how a capacitor smooths AC into nearly steady current.11:32
TransformersExplains Transformers and their primary and secondary windings, how the magnetic flux is produced, calculating output voltage from the turns ratio, and the difference between step-up and step-down transformers.11:01
DiodeExplains the Diode and its structure of P and N crystals with anode and cathode terminals, its role in rectifying AC, and the difference between forward connection, which passes current, and reverse connection, which blocks it.10:10
TransistorIntroduces the transistor and its role in advancing electronics, explaining its structure, the NPN and PNP types, its three terminals (emitter, base, collector), and how it is connected in electronic circuits.15:31
LEDExplains what an LED is, its internal structure and characteristics, how to tell the anode from the cathode, and why it must be connected in forward bias to emit light.7:16
Explanation of AC CircuitExplains a full-wave AC rectifier circuit using four diodes, how it differs from half-wave rectification, and the role of the transformer, diodes and capacitor in producing direct current.14:49
Circuit DesignA hands-on design of the full-wave AC rectifier circuit on Tinkercad, from creating an account to wiring the components, running the circuit and testing it with an LED load.16:54
Introduction to Modern ElectronicsAn introduction to modern electronics covering integrated circuits (IC) and their types such as ECL in terms of speed and power use, robot programming, and applications like factory production lines.9:39