1. The 220V power obtained by the inverter on the car is 220V 50HZ, the high-end point is sine wave, and the cheap one is generally square wave.

The kind of sine wave is the same as the power used in the socket, and the square wave can also be used. However, if there is a motor with a fan, there will be some noise. The reason why the square wave is used is because This modulation method is relatively low in cost. Generally, the inverter of the car has a maximum power of 500 watts, and the air conditioner is generally more than 700 watts. Moreover, do you really want to put the home air conditioner on the car? The air conditioner in the car, including those buses, is let The engine directly drives the compressor, not the electricity. If there is one more electric conversion process in the middle, the loss will be even greater. And it is not easy to install, it is better to use car air conditioning.

2. Pick up a notebook, TV, disc player and the like, as long as it is used under his rated power, it is no problem, but need to pay attention to the fact that he is connected to the car battery, although he is generally 11V to automatically protect the power off, Avoid the voltage is too low, the car can not start, but it is still not suitable for use when the engine is not running, so if the load is relatively large, it is recommended to start the engine. If there is no problem charging the phone.

3. On the electric car, there is a module called DC-DC. He is also called DC converter. This module inputs 48V and outputs 12V. Then you only need to buy a 12V input car inverter to use. Of course, if you can buy a 48V input inverter is better, but it is estimated that it is difficult to buy. And this module can only provide 5A current, but at most 10A, and the lamp should be used, so it is easy to overload. It is recommended that if you can, buy a DC converter that supplies power to your inverter. If the DC converter can only provide 5A, the inverter input should be less than 5A, otherwise the module may be damaged. Of course, there are some DC converters that have a large current. If there is no repairing place, you can go to some electrical stores or ask them to repair them to give you a large current, or multiple DC converters in parallel. In short, Don't let him overload it.

4. There is a vvvf traction inverter on the current urban rail vehicles for variable frequency transformer. When the train is towed, the high voltage (generally dc750V or DC1500V) is changed into three-phase electric traction traction electric motor with adjustable frequency and voltage. The motive is used to convert the three-phase electric energy generated by the rotation of the traction motor to the direct current feedback to the grid during braking or to be consumed by the energy consumption module.

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