Category: Power Electronics

It is literally impossible to list all the applications of power electronics today; it has penetrated almost all the fields where electrical energy is in the picture. This trend is an ever increasing one especially with present trends of new devices and integrated design of power semiconductor devices and controllers. The ease of manufacturing has…

Voltage regulator. Learn how to make a 5V regulator using capacitors, LM7805 regulator and Schottky diode, learn how the circuit works and also how to build your own PCB printed circuit board, how to order a PCB and how to solder the boards electronic components together. This is what happens when we supply to much…

The most common method used is the full wave bridge rectifier. This uses 4 diodes. The AC supply is connected between diodes 1 and 2, with the neutral between 3 and 4. The DC positive output is connected between diodes 2 and 3, and the negative between diodes 1 and 4. In the positive half…

We can create a full wave rectifier simply by using a centre tapped transformer and two diodes. A centre tapped transformer just has another wire on the secondary side, which is connected to the centre of the transformer coil, allowing us to use the full length of the transformer or just half of it. Because…

If we looked at an AC supply, with a step down transformer which reduces the voltage, the electrons are flowing forward and backwards. So, the load experiences a sine wave. The load could be anything from a resistor, a lamp, a motor etc. If we inserted a diode, the diode will only allow current to…

Learn about the full wave bridge rectifier, the half wave rectifier the full wave rectifier, center tapped transformers, diodes, load, oscilloscope, waveform, DC, AC, voltage current, capacitors, bleeder resistor to learn how full wave bridge rectifiers work. This is a full wave bridge rectifier. It’s used to power our electronic circuits, so we’re going to…

Learn the basics of Variable Frequency drives- how they work, why they are used and their importance along with worked examples. Scroll down to the bottom to watch the Youtube tutorial. Remember electricity is dangerous and can be fatal. You should be qualified and competent to carry out any electrical work. If you work in…

How inverters work. In this article we take a look at how an inverter works to convert direct current (DC) into Alternating current (AC). Inverters are used within Photovoltaic arrays to provide AC power for use in homes and buildings. They are also integrated into Variable Frequency Drives (VFD) to achieve precise control of HVAC…

Learn the basic working principle of power inverters, how they work, what they are used for, where we use them and their importance along with worked examples. Remember electricity is dangerous and can be fatal. You should be qualified and competent to carry out any electrical work. What Is An Inverter? A typical inverter looks…