coil

Winding electromagnetic coils by hand is a slow and challenging process, especially when you're trying to achieve neat, consistent turns for motors or actuators. To solve this problem, creator BubsBuilds designed an open-source automated coil winding machine that can produce custom coils based on specific project requirements. Originally built to support the…

Have you ever heard the word isolation, especially in electronics? As you might guess, isolation is a key factor when it comes to optocouplers. Isolation is sometimes mandatory and sometimes an extra feature in circuits. Optocouplers are used in many electronic devices, from mobile electronics to household electronics.

So, in this…

Recently, a Reddit user posted a new project where they created a Playable Pallet Town project , combining creativity and technical skill using a custom PCB and a magnet to bring the town to life. The project features a magnet that moves across 3D-printed buildings, controlled by electromagnetic coils built into the PCB, simulating movement within the scene.

The core…

Recently, we thought of building a simple FM receiver circuit, so, like always, we started googling for possible circuits that can be used to fulfil our requirements, and as expected, we found a lot of circuits on the internet, but the question remains, how good or useful will they be when we put those circuits to the test? Because just like us, we found a lot of…

In some of our previous articles we have discussed about the basics of the transformer and its different types. One of the important and commonly used Transformer is Power transformer. It is very widely used for stepping up and stepping down the voltage at the electrical power generating station and distribution station (or substation) respectively.  

Every hobbyist wanting to dabble in radio has to – at some point – wind a coil or two, be it the antenna coil of an AM radio, a coil on a toroidal core for a bandpass filter in a communications transceiver or a centrally tapped coil for use in a hartley oscillator. Winding coils is not hard but quite time-consuming. There are different methods of making coils, depending on…

Nowadays, the world is shifting towards electrified mobility to reduce the pollutant emissions caused by nonrenewable fossil-fueled vehicles and to provide an alternative to pricey fuel for transportation. But for electric vehicles, travelling range and the charging process are the two major issues affecting their adoption over conventional vehicles. Wireless charging…

The Wireless Electricity Transfer concept is not new. It was first demonstrated by Nikola Tesla in the year 1890. Nikola Tesla introduced electrodynamics induction or resonant inductive coupling by lighting up three light bulbs from the distance of 60 feet from the power source. We have also built a Mini Tesla Coil to transfer the energy.

Wireless…

Coil Gun, as many people think (including me) is not just a fun toy with a tube and few coils around it which can shoot projectiles to a certain distance. Scientists at Sandia National Laboratories believe that a coilgun can be engineered to accelerate particles at a greater speed that is high enough to escape earth’s gravity. Yes, you heard that right! Coil gun could…

Be it an ordinary high school project or a mind-blowing arcing project, a Tesla Coil is always fun to build and will definitely make your project look cool and attractive.  A Tesla Coil is a simple coil that creates a high voltage electric field in the air when a small input power (9V) is provided, this electric field is strong enough to glow small light bulbs. This…

Technically stepper motor driver circuit is a Decade Binary Counter circuit. The advantage of this circuit is, it can be used to drive stepper motors having 2-10 steps. Before going any further, let’s discuss more about the basics of a stepper motor.