CTS 10-12: Electro-Technologies: How Things Work

A short video that provides a good explanation of how power supplies work in computers.

This video focuses on a charger that converts 220 Volts AC to 5 Volts DC with the help of an optocoupler using Switch Mode Power Supply(SMPS).

Topics covered in this video: circuits, current, magnets, electromagnets, armature, commutator, brushes, stator, and rotors in DC motors.

Lithium-ion batteries are practically everywhere, but how do they work? Why are they rechargeable?

How does a smoke detector work? Vance explains the differences between photoelectric and ionization smoke detectors.

In this video, we'll explore the basics of inductors and their role in electrical engineering.

This article provides a good overview of how a power supply works in a personal computer.

In this video, we'll be discussing how to convert DC to AC. We'll be using a 3D animation to illustrate the concepts.

This video describes one of the key innovations in the development of modern computers: the transistor.

This video will explain how to get a pure sinusoidal electric power output from DC power input in a step by step logical manner.

Explore changes in voltage and current when modifying the main components and the conditions in an electrochemical cell.

The video explains the science of batteries. How were they developed, why do they lose charge, and how do batteries even store charge in the first place? Related Lesson

Let's review the basic properties of diodes, and then we'll move on to discuss how diodes are used in circuits.

What is a capacitor, in this short video we learn the basics of what a capacitor is so you can recognise them in circuit boards.

Explore the function and components (chemicals, electrolytes, electrodes, and terminals) of electrochemical wet cells and dry cells.

Ever wondered how EVs get from A to B? Is it essentially the same as an internal combustion car, but wired up to a giant battery? Or is there some altogether more subtle trickery afoot?

In this video we learn the basics of how programable logic controllers work, where they are used and how programable logic controllers replaced relay banks but still use relays.

Every 24 hours, wind generates enough kinetic energy to produce roughly 35 times more electricity than humanity uses each day. So how can we harness this incredible amount of energy? Related Lesson

What is a programmable logic controller, and how do it help us run the many processes that our modern world requires? What are the pros and cons of PLCs?

You think you know how relays work until one blows in your face. Learn how to avoid that.

Today, we're going to take a look at the role of AI in overcoming three key challenges in the field of robotics: localization, planning, and manipulation.

Find lessons (with videos) for building a light guitar, coin detector, and ant bot with Lego Robotics. Learn about the programming and science behind each creation.