1. The inverter in the car obtained 220V electricity, is 220V 50HZ, high-grade point is sine wave, cheap is generally square wave. The kind of sine wave and the power used on the socket, is the same, and square wave can actually be used, but if the use of fans and other motor equipment, there will be some noise, the reason for the use of square wave, is because of this modulation method cost is relatively low. In general, the car of this inverter, the power of the largest but 500 watts, air conditioning is generally more than 700 watts, and, you really want to put the home air conditioner on the loading??? The air conditioning in the car, including those buses, is to let the engine directly drive the compressor, not electricity, if the middle of an extra electrical conversion process, the loss is even greater. And it's not good to pretend, it's better to use a car air conditioner.
2. Pick up notebook, TV, disc and other things, as long as the use of his rated power, no problem but need to note that he is connected to the car battery, although he is generally 11V on the automatic protection of power outage, to avoid low voltage caused by the car can not start, but still not suitable for the engine does not operate in the case of use, So if you use a large load, it is still recommended to start the engine. If it's a charge to the phone, there's nothing wrong with it.
3. On the electric car, there is a module called DC, he is also called DC converter, this module input 48V, output 12V, then you just buy a 12V input car inverter can be used. Of course, if you can buy 48V input inverter better, but estimated to be difficult to buy and, this module generally can only provide 5 A current, up to 10A, and headlights and so on, so it is easy to overload, it is recommended that if you can, buy more than a DC converter, this converter dedicated to your inverter power, Then if the DC converter can only provide 5 A, then the inverter input should be less than 5 A, otherwise it may damage that module, of course, some DC converter current is very large, if the car repair place is not, you can go to some electrical stores or ask them to repair to give you a large current, or multiple DC converters in parallel can also, Anyway, don't let him overload.
4. There is a VVVF traction inverter on the urban rail vehicle, which is used for variable frequency variable pressure, which changes the high pressure (usually dc750V or DC1500V) into a three-phase power supply with adjustable frequency and voltage when the train is towed, and uses the traction electric motive, In braking, the three-phase electrical energy emitted by the rotation of the traction motor can be converted into direct current feedback back to the grid or consumed by the energy consumption module.