Switching your current on and off, very rapidly, would give pulses of direct current—which would do at least half the job. To make proper AC, you'd need a switch that allowed you to reverse the current completely and do it about 50‐60 times every second. Visualize yourself as a human battery swapping your contacts back and forth over 3000 times a minute. That's some neat fingerwork you'd need! Simple animation illustrating the concept of a DC to AC power inverter.
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In a mechanical inverter, either an electric motor or some other kind of automated switching mechanism flips the incoming direct current back and forth in the primary, simply by reversing the contacts, and that produces alternating current in the secondary—so it's not so very different from the imaginary inverter I sketched out above. The switching device works a bit like the one in an electric doorbell. When the power is connected, it magnetizes the switch, pulling it open and switching it off very briefly. A spring pulls the switch back into position, turning it on again and repeating the process—over and over again.
Power inverters have a wide variety of designs, capabilities, and features. Understanding their differences can be as simple as dividing them into two groups based on their cost.As far as the sine wave converters go, I wouldn't concern myself with it unless maybe you have some expensive music equipment like Robert mentioned. Most things that you will need an inverter for in a truck will operate just fine on the regular inverters. To get a sine wave inverter you will be spending a lot more money. I was a licensed master electrician in my former life, and I too looked into the sine wave inverters, but realized that there was not sufficient reason to go with them in the truck.
Our power inverter line has input voltages ranging from 12v/24v inverter and 48 volt dc power inverters. You will find a complete line of industrial grade power inverters, available in 12 volt, 24 volt and 48 volts. Our industrial power inverters are built tough and ready for use in commercial applications. We also offers 220 50hz export power inverters. The Export power inverters that we offer are modified sine 220 50hz power inverters, which are designed to be used in Africa and Europe. These 220 50hz power inverters are available in both 12 volt and 48 volt.
Power inverters can be very big and hefty—especially if they have built-in battery packs so they can work in a standalone way. They also generate lots of heat, which is why they have large heat sinks (metal fins) and often cooling fans as well. As you can see from our top photo, typical ones are about as big as a car battery or car battery charger; larger units look like a bit like a bank of car batteries in a vertical stack. The smallest inverters are more portable boxes the size of a car radio that you can plug into your cigarette lighter socket to produce AC for charging laptop computers or cellphones.
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