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Course: The Theory Behind Electronics - A Beginners Guide

The Theory Behind Electronics - A Beginners Guide

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  • Certificate on Completion
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About this Course

Electricity is all around us, it is some hidden energy force driving many applications we all use in our daily life. The theory behind electricity is based on some amazing phenomenon in nature and some several materials properties that were discovered by great scientists. Electronics is a theory developed around the useful applications of electricity. So the first thing that we can say about electricity is that it is a really interesting subject!

Today, electronic is becoming much more friendly hobby for many people worldwide that would like to easily combine hardware and software and do things by themselves, the prices of electric components are dropping, easy to use development platforms were created (e.g. Arduino) and it is very easy to collaborate and learn the subject in a few mouse clicks.

The Internet of Things is also an emerging driving force for innovators looking to build things using electronics and harness the power horse of the web technologies to create new products, services or just cool projects!

This course is a starting point, to learn the basic building blocks of electronics with step by step education program, easy to follow chapters, simple circuits’ demonstrations, quizzes to evaluate your understanding and review the key things to remember using a mind mapping templates.

Join me with one of the biggest Makers Movement!

Basic knowledge
  • This course is meant for newbies in electricity and electronics
  • All kind of Do-It-Yourself Makers
  • Arduino developers looking for more solid background
  • Internet of Things entrepreneurs
  • Students looking for a quick refresher on basic electronics theory
What you will learn
  • Understand the R,L, C building blocks of analog electronics
  • Calculate Voltage, Current and Power and understand the relation between them
  • Understand the properties of DC and AC power supply
  • Understand the applications of Resistors, Capacitors, Inductors, Diodes and Transistors
  • Analyze basic electronic circuit
  • Select the right components in future project
  • Build simple projects in a Circuit Simulator
  • Document circuits is a software tool
  • Develop ideas and summarize knowledge using mind mapping software
Curriculum
Number of Lectures: 60
Total Duration: 03:42:42
Setup
  • Course Introduction  

    Starting with a short course introduction on Why ? What ? How ? Who ?....

  • Software Setup  

    We will quickly review the needed software tools (desktop and web-based) that will be used during this course. All of them are optional and you can run the all course without them BUT I strongly recommend to start using them... it is FUN !

Current, Voltage and Power - Starting with the basics !
  • Introduction - Current, Voltage, Power  

    Starting our journey with a basic definition of Current, Voltage and Power.

  • Atoms and Electric Charge (OMG?!)  

    Atoms (OMG!) are the building blocks of materials around use, Electric Charge is the amazing property of electrons and protons inside each atoms. Did you know that electric charge is holding the all universe from falling parts...... I am not kidding.... 

    OK, but what is the relation to Current ? 

  • Electric Current  

    Current is the organized flow of free electrons in a closed loop, measured in Amperes. Current can be translated to other forms of energy like heat or light, making electric circuits extremely useful for end-less applications. 

  • Voltage  

    Voltage is the potential electric motive force pushing the electrons in one direction, measured in volts.

    As said by Bob Marley, "No Women No Cry...." --> in our case No Voltage No Current....

  • Power  

    Power is the rate of energy being consumed in specific component and it is based on the amount of voltage drop and current flowing in that component. Power is measured using watts. To measure power consumption we need to add the time scale so in that case, power consumption is measured using Watts-Hours. In addition, to measure the energy capacity of some limited energy source like a battery we use Amperes-Hours.

  • Summary - Current, Voltage, Power  

    Mind Mapping summary of this section. Please download also the mind mapping template file. 

AC/DC - Two best friends ?
  • Introduction - AC/DC  

    To create voltage potential we need a power source, such a power source can be based on direct current or alternate current. But really, what's the different between them ? why do we need this AC power source if most of the things around us are working on DC ?

  • Direct Current (DC)  

    Direct Current is current that travels in one direction only, it is unidirectional with constant polarity. DC is very common method to operate low power digital circuit and devices so we will find it in almost electric circuit. 

  • Alternate Current (AC)  

    Alternating Current is a type of power source that causes current to periodically change direction. AC today is the most common method to deliver electricity for long distance. The frequency of changing direction is measured in Hertz. 

  • The War of Currents  

    AC today is the most common method to deliver electricity for long distances. But Why ? 


  • AC Wave-forms  

    AC waveform is defined by frequency, amplitude and phase

  • AC Socket - Hot, Neutral, and Ground  

    It is TIME to understand the AC socket in our house, what is Hot, Neutral and the Ground wires ? 

  • Measuring Power and Voltage in AC  

    To easily handle voltage, current and power in AC we used RMS (Root Mean Square ) values. 

  • Summary - AC/DC  

    Mind Mapping summary of this section. Please download also the mind mapping template file. 

(Join the) Resistance
  • Introduction - Resistance  

    Resistance, Capacitance, Inductance are the building blocks of almost any electric component, device or a circuit. We will find them everywhere...

  • What is Resistance ?  

    Resistance is the property of a material, measured in ohms. What happens when some material resist to current flow ?  "I think it is getting HOT in here..."

  • Resistors  

    Resistors devices are used to limit the current flow and set voltage levels across the circuits. 

    So simple and so useful...

  • Circuit Simulation - Fixed and Variable Resistors  

    Let's start to use the Circuit Simulator ! 

  • Circuit Simulation - Measuring Current and Voltage  

    How do we measure Current and Voltage strength in some location in our circuit ? 

  • Summary - Resistance  

    Mind Mapping summary of this section. Please download also the mind mapping template file. 

Capacitance - Storing electrical energy for a while….
  • Introduction - Capacitance  

    Resistance, Capacitance, Inductance are the building blocks of almost any electric component, device or a circuit. We will find them everywhere...

  • What is Capacitance ?  

    Capacitance is a property of a body for storing energy in electric field, measured in farad. 

    OK great, but for what ? 

  • Capacitors  

    Capacitors devices are used to store and release electric energy. 

  • Charge and Discharge  

    Capacitors are charged and discharged in an exponential pattern (don't run away please...). So how can we calculate the specific TIME they will be charged/discharged ? what are the applications of capacitors ?

  • RC - Time Constant  

    Time constant is the easiest parameter to handle capacitors charging and discharging time.

  • Types of Capacitors  

    There are all sorts of capacitor types out there, each with certain features and drawbacks which make it better for some applications than others.

  • Applications  

    Capacitors are widely used as parts of electrical circuits:

    • Blocking direct current while allowing alternating current to pass
    •  Smooth current fluctuations for signal or control circuits
    • Filter specific frequencies (e.g. radio)
    • Generate signal waves used for timing
    • And more….so commonly used that in almost every circuit we will find them pushing their big nose...
  • Circuit Simulation - Store and Release Energy with Capacitors  

    Let's see the MAGIC of charge of discharge. 

  • Summary - Capacitance  

    Mind Mapping summary of this section. Please download also the mind mapping template file. 

Inductance - Let the force be with you
  • Introduction - Inductance  

    Resistance, Capacitance, Inductance are the building blocks of almost any electric component, device or a circuit. We will find them everywhere...

  • Electromagnetism - almost like magic...  

    Electromagnetism = Electro + Magnetism

    Magnets?!? , what are you talking about ?

    Not easy but really interesting stuff !

     

  • Steady Current and Coiled Wire  

    Based on Electromagnetism, we can create magnetic field using current ? did you ever created Electromagnet as a kid ? 

  • Time Varying Current  

    What will happen when a current connected to a circuit with a wire coil, will vary on the time scale, like using AC signal as input ?

  • Self-Inductance  

    Self-inductance is how inductors store energy in magnetic field. 

  • Inductance and Inductors  

    Inductance is a property of an electrical conductor by which a change in current flowing through it induces an electromotive force. Inductance is measured in Henry.

  • RL - Time Constant  

    In the preceding sections, we learned how to calculate the RC time constant for a resistor-capacitor circuit. A similar calculation can be done for inductors, except that instead of calling it the RC time constant, we call it the RL time constant. But the Idea is almost the same. 

  • Mutual-Inductance  

    Time-varying magnetic field (flux) induces an electromotive force in nearby conductors. The induced force is called Electromotive Force (EMF). A device specifically designed to produce the effect of mutual inductance between two or more coils is called a transformer. All our AC to DC converters are working based on this effect. 

  • Transformer  

    Transformers, Electric Motor and AC Generator are based on the principle of inductance.

  • AC Generator and Electric Motor  

    Transformers, Electric Motor and AC Generator are based on the principle of inductance.

  • Circuit Simulation - Self-Inductance with Inductors  

    Let's see some simple example of Self-Inductance.

    p.s. the circuit simulator is not smart enough to present mutual inductance....

  • Summary - Inductance  

    Mind Mapping summary of this section. Please download also the mind mapping template file. 

Semi-Conductors - What’s the big deal ?
  • Introduction - Semi-Conductors  

    Semi-conductors are the most important step in moving to digital electronics, as they are the building blocks for other more complicated components. 

  • What is Semi-Conductor ?  

    Materials are classified by their ability to conduct electricity. Substances that easily pass an electric current, are referred to as conductors. Materials that have a difficult time passing an electric current are called insulators. A third category of material whose conductivity lies between those of conductors

    and insulators. This third category of material is referred to as a semiconductor

  • Diode  

    Diode is simple application of Semi-Conductors while fusing together N-type and P-type semiconductor materials. Diode are basically a one way gate for current.

  • Transistor  

    A transistor is like a diode with a additional third layer of either p-type or n-type semiconductors on one end. Two common types of transistors – PNP and NPN. Transistors are used to amplify electrical power or switch electronic signals.

  • Circuit Simulation - Transistor as Digital Switch  

    First application of transistor is just as simple controlled SWITCH. 

  • Circuit Simulation - Transistor as Digital Logic  

    Next applications is to create a digital logic gate ! all the chips the you see everywhere are based on such applications, just they are very, very, very small created during the chip production process. 

  • Circuit Simulation - Transistor as Current Amplifier  

    Give me some more power please... that's another useful application of transistor, to amplify signals. 

  • Summary - Semi-Conductors  

    Mind Mapping summary of this section. Please download also the mind mapping template file. 

Basic Laws of Electric Circuits - It is NOT a rocket science…
  • Introduction - Basic Laws  

    Ohm’s Law and Kirchhoff's Laws are the basic laws of electric circuits helping to perform simple to complex circuit analysis.

  • Circuit Topology  

    We first defined some basic circuit topology – branch, node and loop and how to combine components in series and in parallel.

  • R,L,C in Series and Parallel  

    R, L, C components are commonly places in series and in parallel. Why ? many reasons and one of them is to create variety of values that we can't find off-the-shelf in the store. 

  • Ohm’s Law - V, I, R  

    Ohm’s Law is used to define the relation between  Voltage, Current and Resistance. The electrical current (I) flowing through a fixed linear resistance is directly proportional to the Voltage applied across it (V).

  • Kirchhoff’s Laws - Junction (KCL)  

    KCL also called the junction rule saying that at any node (junction) in an electrical circuit, the sum of currents flowing into that node is equal to the sum of currents flowing out of that node.

  • Kirchhoff’s Laws - Closed Loop (KVL)  

    KVL also called the closed loop rule saying that the algebraic sum of the voltages around any loop of a circuit is zero meaning the amount generated equal to the amount used.

  • Summary - Basic Laws  

    Mind Mapping summary of this section. Please download also the mind mapping template file. 

Course Summary
  • What did we covered ?  

    All most finished !

    Let's review the flow of topics and some key things to remember

  • What Next ? Crazy about Arduino Courses  

    Ok, what NEXT ? 

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