How to choose a car voltage converter 12/220 B?

Most of the household electrical appliances used in Ukraine, are working on  220 V. And, of course, know that the vehicle electrical system of any car is the average voltage of about 12 V, it can fluctuate a little, considering the battery.

What do you do if you need to connect the standard appliance to the onboard vehicle network? Such situations often occur during country visits, on travel, for different kinds of repair work and other situations where the car is in a place where there is no access to a power outlet. In this case, bail is a special device-car inverter (voltage converter).

The main technical parameters

This type of device has several major technical indicators that you should always look as they determine the effectiveness of their work:

Rated power output

This is one of the most important parameters of the device. It will depend on what kind of devices will be connected to the inverter. If you want to connect, for a 10-watt device, the converter must be able to give not less than 15 watts, as must be headroom.

When planning a trip and choose inverter, please remember that all appliances have different power consumption, it is usually specified in the instructions, sometimes directly on the device. If we consider the most popular devices that may be needed to connect to the machine, they have an average power following parameters:

• Electric Shaver-about 25W;
• TV LCD-200 W;
• notebook-250 W;
• electric drill-1000 W;
• electric-from 1500 W and more.

Peak power output

This figure, too, is often specified by the manufacturer. Most often, this is done for advertising purposes. Peak power-the maximum amount of short-term cardinality load that can withstand the appliance and do not fail. Just keep in mind that constantly work with such a load, no converter can not. If you long to work on such a power, the inverter will start to warm up much, and may be damaged.

Peak load may occur when connected to the inverter device with an inductive load, for example, hair dryers, vacuum cleaners, refrigerators. Also, when you connect devices to the inverter power supply circuit, this includes: TV, laptop and other.

Please note that if the manufacturer have a peak power or power without specifying its type, it is necessary to be guided by the following rule: in order to obtain nominal power, it is necessary to divide this value by 2. It is important to consider when choosing the converter.

Stable output voltage

System voltage of any vehicle depends on the battery charge. When you connect the inverter battery will gradually discharge, leading to a drop in voltage in the network. If your converter has a voltage stabilization system output, a situation may arise when the voltage is not stable, it will begin to "float".

Typically, appliances are capable of withstanding a voltage drop of not more than 10% of the nominal value, i.e. from about 180 to 240 V. Therefore, when choosing necessarily refer to the inverter has the function of stabilizing voltage surges may otherwise lead to the fact that connected devices can burn.

What is the voltage obtained at the output

voltage type, is also very important characteristic. In the standard mains we always an alternating voltage of 220 V with a frequency of 50 Hz, while it has an almost ideal sinusoidal. And based on the voltage converters have a special pulse circuit. And the form is often markedly different from the classic sine wave.

Of course, there are many devices that are not very sensitive to this, for example, a vacuum cleaner or hair dryer. But there are also very sensitive devices: TVs, laptops, audio equipment, etc. They may have problems, their work may be unstable, and in some cases they may even refuse to work or fail. Knowing this, choosing a car inverter, take the models that have a regular full sine wave output. Of course, these models will cost more, but also to connect equipment costs a lot-security is better not to save.

Power dissipation

This option for inverters is indicated rarely. Most often, it is at about 15% of the nominal power. That is, if you specify 500 watts, it will heat up about how the incandescent bulb 70 W power order. That's a pretty impressive figure.

So, if you plan to use the powerful converter, it is recommended to think in advance where it will be located, you can even prepare a special insulation for thermal protection, just leave the seat or mat for him-not a good idea. Also, you should take care of ventilation around the unit should circulate the air force and overwhelm him with any object can not. If this does not comply, the inverter will overheat, which will adversely affect his work.

Types of inverters and how they work

Car inverter can have one of three types of structures:

• Relay-an obsolete type, rarely used now, since it demonstrates the low efficiency and reliability.
• Analogue-in fact it is a small oscillator (blocking oscillator) with a transformer load, the advantage is that the output waveform is as close to a sine wave, but may be a problem with the voltage stability. That is, they should not be used to connect a complex sensing technology. Also, they usually have low efficiency, less than 50%, and such devices are quite strongly heated during its operation.
• The impulse-the most popular among the drivers an option, such devices are built on the basis of modern digital circuits. The advantage of these models is that they differ stable output voltage, and have good efficiency. That they are usually referred to as inverters, as their scheme is based on the inverter type.

What is better to choose a converter for the car?

Now in stores you can find the different models of motor inverters. We have already discussed the main parameters and types of converters. Therefore, it is necessary to elaborate on how to choose the right device, that it is reliable and works efficiently.

Before you buy an inverter, first, it is necessary to determine the order for what it specifically to be used, what kind of appliances will be connected to it.

The next step should be to determine the capacity that will be needed to power all connected devices. Note that if both are connected to the inverter are different consumers, they should lay down their power.

If you plan to take a powerful model with 5000 watts or more, keep in mind that wires and terminals must be powerful and reliable. This is due to the fact that during their working current can reach the level of 200-400 A. This is similar to the current that passes through the network at the time of engine startup. Thin wires may simply not survive this.

Safety precautions when working with an automotive inverter

When using voltage transformers must be very strictly adhere to established electrical safety requirements, in particular:

• Make sure to check the integrity of the electrical wires when connecting equipment;
• Use only high-quality wire of the corresponding section, then the following applies 1 square. mm. cross-section of the copper wire in the 4 A current consumption;
• a car is recommended to ground, this is especially important when working with very powerful transmitters, for this it is necessary to connect a wire from the vehicle body and to drive deep into the ground reinforcement;
• If the inverter is not used, it must be disconnected from the on-board vehicle network.

In our online store you can 130.com.ua buy car inverter in Kiev, Kharkov and Odessa, at a bargain price. Delivery is carried out throughout Ukraine.

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