electric power consumers are divided into two major groups - consumers AC and DC consumers. Household appliances and devices used at home, powered by an alternating voltage network. Just insert the plug into the outlet, so they began to work. But they can not take with you on the go, use the car, because for they have no power supply required.
On-board vehicle power based on the use of direct current. The main energy source is a battery, rechargeable by a generator when the engine is running.
appointment
The purpose of the inverter is to convert DC voltage vehicle electrical system into AC power suitable for most home appliances, office equipment, electric tools.
It would seem that the problem of power AC devices on the vehicle network is solved, but there are several limitations that should be considered when buying and installing the devices.
The first inverter output power limited battery capacity and power a vehicle alternator, which is typically less than 0.6 kW. The direct consumption by the battery is able to discharge the battery. Most converters are switched off automatically when the battery discharges to 10V, but also to start the car with the same voltage is unlikely to succeed.
Differences in shape sinusoid
Inverters - are electronic pulse voltage converters. The mode keys output transistors are alternately formed on the output bipolar rectangular pulses.
For adaptation of the voltage, suitable for the majority of consumers, the pulses are modified to trapezoids. This form of stress satisfies the majority of electrical devices and is called a modified sine wave.
As such a voltage sufficient to power:
- electric motors;
- heaters;
- kitchen equipment.
Modified sine wave but is not suitable for power computing devices. Computer, laptop, uninterruptible power supply will not work. Televisions, audio systems require a high-quality sine wave, as close in form to the voltage in a conventional home outlet.
Inverters with pure sine wave much more expensive than usual. But they can be powered without the risk of complex electronic equipment.
How to connect the inverters?
One of the key connection conditions - safety on-board network from the overcurrent. Therefore, the vehicle wiring must be protected by a fuse.
Connecting to the cigarette lighter socket has a protection fuse 10 denominated A. Converters, which for normal operation of such a current sufficiently, equipped with a special cord with a plug in the form of the cigarette lighter.
The inclusion of an inverter in the plug socket technology polar limited car fuse 5 A.
Installation of the power converter circuits directly into free space on the fuse panel allows you to use a fuse with a nominal value, sufficient to power the device.
Power inverters are connected directly to the battery terminals. Himself a block mounted in the space of the body. wire cross section should provide a power transfer without danger of their heating and melting.
It must be remembered that the converter itself is a stress even without connected external consumers. Therefore, during the period of non-use necessary to ensure disconnection from the on-board network, if it is not provided in the inverter design.
If the generator is not enough staff for the transmitter power, you should consider the possibility of replacing the generator more powerful.
Often the problem of malnutrition for the inverter solves the replacement battery to the battery with more capacity