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Modern inverters (power inverters) use the basic circuit scheme like that shown in Figure 1.

As you can see from the figure below, direct current (DC) from the battery is converted into alternating current (AC) very simply, by using a pair of power MOSFETs (Q1 and Q2) acting as very efficient electronic switches. The positive 13.8V DC from the battery is connected to the centre-tap of the transformer primary, while each MOSFET is connected between one end of the primary and earth (battery negative).

DC-AC inverters (power inverters) are very suitable when we need to use AC power tools or appliances when the usual AC mains power is not available. Typical examples include operating the appliances in caravans and mobile homes, and also running audio, video and computing equipment in remote areas.

Most DC-AC (Direct current to Alternating current) inverters (or power inverters) do the job by performing two main functions. Firstly they convert the incoming Direct current (DC) into Alternating current (AC). Secondly then they step up the resulting Alternating current (AC) to mains voltage level using a transformer.

Through the power inverters (inverters) onn your boat, you can plug in the digital movie camera to capture tye great water-skiing videos, which you might have missed if the camera's battery ran low!

In a utility outage, the power inverter (inverter) can be used for emergency electricity. Running an extension cord from the car into the house, or if you have a charged spare battery, you can connect the power inverter directly. You can plug in a radio to tune into important alerts, run essential medical equipment, lights, or some digital appliances with the help of power inverter.

Then what exactly is an inverter (power inverter)? An inverter (power inverter) is an electrical device that converts DC power or direct current (DC) to AC power or alternating current (AC). The converted alternating current (AC) can be at any required voltage and frequency with the use of appropriate transformers, switching, and control circuits. An inverter (power inverter) allows you to run electrical equipment off your car or marine battery for mobile applications, emergencies or simple convenience.

Hi, I'm Ben. Nice to meet you here. I am an engineer. If you like, we can communicate here on the matters of inverters. Today, inverters are widely used, such as auto, truck and so on.

I will write or copy some articles about inverters here. And I's be glad that you can leave your comments on inverter for these articles.