Power
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AC Circuit Theory (Part 2): AC Waveforms and their PropertiesAC Waveform
As established in the first part of AC Circuit Theory, when a magnet rotates around a coil or a coil rotates around a magnetic field, an Alternating current or voltage is generated. The rotation of either the magnet or the coil which leads to the periodic alternation in direction and magnitude of the Voltage (or current) leads to the generation of some sort of… |
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AC Circuit Theory: What is AC and How its GeneratedIntroduction
An electrical circuit is a complete conductive path through which electrons flow from the source to the load and back to the source. The direction and magnitude of the electrons flow however depend on the kind of source. In Electrical Engineering, there are basically two types of voltage or current (Electrical Energy) source which defines the kind of circuit… |
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Zener DiodesIntroduction
Diodes generally are known as a device that allows the flow of current in one direction (forward biased) and offers resistance to the flow of current when used in reverse bias. Zener Diode (Named after the American scientist C. Zener who first explained its operational principles) on the other hand, not only allow the flow of current when used in forward bias,… |
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What is Fuse: Types and WorkingWhat are fuses?
Fuses are the protectors, these are the safety devices which are used to protect the home appliances like televisions, refrigerators, computers with damage by high voltage. The fuse is made up of thin strip or strand of metal, whenever the heavy amount of current or an excessive current flow is there in an electrical circuit, the fuse melts and it opens the… |
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Solar Powered Cell Phone Charger Circuit Electronic gadgets like Mobile Phones and IPods have made our lives a lot easier. But, all of them suffer from one common drawback of charging them at regular periodic intervals. This becomes a problem when we are traveling or at a place where electricity is not available. Also using renewable energy source is quoted as the next generation fuel for all our electricity… |
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LM317 Variable Voltage Regulator Circuit Whenever we need a constant and specific value of voltage without fluctuation we use voltage regulator IC. They provide a fixed regulated power supply. We have 78XX (7805, 7806, 7812 etc) series voltage regulators for positive power supply and 79XX for negative power supply. But what if need to vary the power supply voltage, so here we have Variable Voltage Regulator IC… |
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Float Charger Circuit for 12v SLA Battery A float charger, also called as maintenance charger or smart charger, is used to charge a lead acid battery to top-up the self-discharge capacity. Self-discharge happens in a battery if not in usage for long time i.e., the terminal voltage begins to decrease. If this float charger is connected to the battery the self-discharged capacity can be topped up which is to full… |
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How to Make a Mini Tesla Coil with 9v Battery 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… |
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1W LED Driver Circuit High Power LED lights have lots of applications starting from Emergency lights to Head Lights in some expensive cars. These tiny little things illuminates a lot of area that we expect it to be, in this tutorial we will learn how easy it is to use one and how can we design our own circuit to drive such LEDs based in their operating current. So let us… |
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Electronic Circuit Breaker with High/Low Voltage Protection Voltage fluctuations have always been a problem and are responsible for most of the failure in AC appliances. Be it a normal home appliance like a Toaster or a high performance industrial machine like a CNC, everything has a rated voltage only on which it will run without any problem at its maximum efficiency. Unfortunately our Domestic/Industrial Lines fails to… |
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High/Low Voltage Detection and Protection Circuit using PIC Microcontroller We often see voltage fluctuations in electricity supply at our home, which may cause malfunction in our home AC appliances. Today we are building a low cost High and Low Voltage Protection Circuit, which will cut off the power supply to the appliances in case of High or Low voltage. It will also show a alert message on 16x2 LCD. In this project, we have used PIC… |
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Transformerless Power Supply Generating low-voltage DC from the 220V or 110V AC mains is very useful and necessary in the field of electronics. Low voltage DC, like 5v, 6v, 9v, 12v, is used in electronics circuits, LED bulbs, toys and many household electronics items. Generally, batteries are used to power them, but they need to be replaced from time to time, which is not cost-effective and also takes… |
