The inverter is a converter that transform DC electricity into a fixed -frequency fixed -voltage or frequency regulating voltage regulatory AC power (generally 220V, 50Hz sine waves).In the use of RVs, many electronic devices such as laptops or television cannot directly use your RV battery to power it directly. At this time, the inverter comes in handy. It can convert the 12 -volt battery power to 220V AC power supply.
When you are buying a inverter for your RV, you need to consider two things: specifications and types
Types of inverter
Here we consider the types of two inverters: modify sinusoidal wave inverter and pure sine wave inverter. The modify sinusoidal wave inverter generally uses a non -isolation coupling circuit, while the pure sine wave inverter is designed with an isolation coupling circuit.
1.Modify sinusoidal wave inverter
This inverter uses a PWM pulse width modulation to generate a correction wave output. During the inverter, due to the use of a special smart circuit and high -power field effect tube, the power loss of the system is greatly reduced. And adding a soft startup function to effectively ensure the reliability of the inverter.
For most electrical appliances, corrected sine waves have no effect on them and can be used normally. For example, light bulbs, compressed machine electrical and electric tools, etc. However, some electrical appliances, such as electric blankets, coffee machines, etc. will not work properly. Because their microprocessors need to adjust the temperature correctly.
When using a corrected sine wave inverter to power, some devices will produce “buzz” noise, such as TV.
2.Pure sine wave inverter
The output waveform of the pure -string wave inverter is almost not much different from the municipal electricity. Due to the complexity of the electrical appliances, its price is much more expensive than modify sinusoidal wave inverter. Basic electrical appliances can work normally without any restrictions.In most cases, I suggest you buy a pure sine wave inverter.
How to choose inverter specification?
The power of the inverter is another problem to consider. Maybe you think the bigger power of the inverter, the better. Of course, when the power is too small, you will not be able to get enough electricity. But too much power will also waste.
Most inverters are marked with continuous output power and peak output power. We need to calculate the power of the inverter we purchased according to actual needs.Continuous output power is called as the rated output power, it is the power output in the normal use.Peak output power is the maximum output power that the inverter can process in a short time. The purpose of its design is that the “startup” load of many devices is significantly higher than its operating load. For example, the refrigerator compressor can consume 100W when starting, but it is stable at 50W after a few seconds.
The first task is to list the electrical appliances you will use at the same time, adding up their maximum power. Some of the electrical appliances that do not use them together are taken. Then select a inverter with the output power higher than the load (120%).For example: There is a rice cooker in your RV 300W and a laptop 80W. Then you use the power at the same time at 380W. You need to buy a 400-500W inverter.
What you need to pay attention to when installation?
1. Try to install the inverter close to the battery to reduce the length of the DC wiring.
2. Make sure you can easily close the inverter at any time.
3. Make sure the inverter is grounded correctly.