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The LED (light emitting diode) is a solid state light source. Although LEDs require a DC power source and cost more than fluorescent lights, LEDs have become popular because of their low...

An uninterruptible power supply used to be considered a luxury item for personal computers. However, this improving technology and the lowering of prices of computer component, an uninterruptible...

Power adapters (or power supplies) are a ubiquitous part of our electronics-laden lifestyle. A power adapter takes the output of one power source, like a 120-volt AC wall socket, and converts it...

All electronic devices, from TV sets, to steros, to computers, have numerous voltage and current requirements needed to supply to their circuits. However, the power delivered to our homes' wall...

Pretty much all batteries use DC power to charge, but most convert it from an AC power supply. In most cases, 120-volt AC current is run from a wall outlet into a power supply that converts it...

If you're just beginning your study of electrical circuits, you've probably become familiar with direct current (DC) circuits such as those created using battery power. While DC is straightforward...

The transformer is one of the key inventions fundamental to creating the electrified world. The AC electric model, with its high voltage power transmission, is completely dependent on transformer...

Modern civilization would be impossible without the technology of transformers. The very concept of AC electricity does not work without them, so in a world without transformers, many of our...

Wire is used through out our daily lives in our modern world. In fact without it, you would not be able to read this article or even turn on the light above your head. The process of power being...

If you've got a lot of electronic gear, you may want to consider adding more power outlets to your home. Here's a step-by-step primer on how to wire two power receptacles.

Wiring a switch is a simple process that comes in handy around the house. While there are many different types of switches, the basic steps for wiring are the same.

Hearing aid batteries need to power up. Learn how long to wait before using a hearing aid battery from an audiologist in this free instructional video.

Today's laptops and desktop computers are more user-friendly. As more people start use computers, operating systems, software and hardware accessories are coming with better instruction manuals...