Wednesday, June 24, 2009

What are Power Inverters?

The storage batteries used in alternating power systems store DC (direct current) power. But, most modern electronic appliances depend on AC (alternating current) power. A power inverter can provide the comforts and conveniences of modern living. It is an electronic piece of equipment that converts DC power into conventional AC power.

During blackouts, a power inverter can be used for emergency power. It is used to run all sorts of household equipments, including kitchen appliances, power tools, TVs, computers, and more.

Power inverters are normally small, rectangular shaped units. There are normally one or two outlets available for standard cords. Inverters normally draw their power from 12V, 24 V batteries, or several batteries wired in parallel. The batteries are discharged as the unit draws the power out of it. Automobile motors, solar panels, gas generators, and other standard sources are used for battery charging.

Power inverters are available in several models that differ in watts. The required amount of inverter wattage depends on the total draw of the devices, plus at least 50% more to account for peaks or spikes in the power draw. For example if your computer draws 100 watts and your home theater another 100 watts, a minimum 300 watt inverter is suggested.

A typical power inverter produces square wave, modified square or sine wave, and pure sine wave (true sine wave). The waves denote three dissimilar qualities of power output and three different price ranges. Owing to uneven power delivery, square inverters, the initial types of inverters, are almost outdated. Modified inverters, less expensive and probably the most common, produce consistent and efficient power. True sine wave inverters are highly expensive and they also deliver the most consistent wave output.

Always use highly rated power inverters for the devices you are running. Avoid adapters that would permit more outlets than the unit is designed to accommodate. Since improper use of a unit may lead to burning, make sure that you read and follow all safety measures listed in the user?s manual.

Power Inverters provides detailed information on Power Inverters, DC To AC Power Inverters, Emergency Power Inverters, Car Power Inverter and more. Power Inverters is affiliated with How to Replace a Circuit Breaker.