What Is a Laptop Inverter?

Car inverter (power converter, Power Inverter) is a kind of convenient car power converter, which can convert DC12V DC power into AC220V AC power, which is the same as the city power, for general electrical appliances. Vehicle power inverters are generally welcomed in foreign markets. Because of the high popularity of automobiles abroad, you can use the inverter to connect the battery to drive electrical appliances and various tools to work or work. After China's entry into the WTO, there are more and more private transportation vehicles in the domestic market. Therefore, as a DC-to-AC converter used in mobile, the car inverter power supply will bring a lot of convenience to your life and is a standing reserve. Automotive electronic equipment supplies. ^[1]

Car inverter

Car

Car

First of all, pay attention to the specifications, because supporting different types of electrical equipment requires different specifications of inverters, so you must first know which electrical equipment you are using. Otherwise, I bought a 40W inverter and found

Q: Take power from a cigarette lighter, 300W inverter, can not bring a desktop computer

A: It is not recommended that you take electrical appliances with a power band greater than 120W from the cigarette lighter. The cigarette lighter can only withstand a current of about 10A and about 100W, because the battery is connected to the cigarette lighter by about 2 meters of wire, and the battery negative The car's shell is grounded, losing too much voltage and current. The inverter refuses to start when it detects that it cannot maintain the voltage and current at which it starts. The best working voltage of the inverter is 11-13V.

Solution: 1

Bold the battery positive wire to the cigarette lighter,

The negative electrode of the battery should be connected to the cigarette lighter with a wire.

Because the connection wire from the battery to the cigarette lighter is 2M long, choose a 2.5 square or thicker wire connection

Solution: 2

Use the original battery connection clip wire of the inverter to directly connect to the positive and negative poles of the car battery, and you can start electrical appliances within 300W.

Question: Plug the inverter into the car's cigarette lighter, the buzzer will alarm, or bring the load alarm,

Answer: There are several reasons:

Automobile lines are aging,

Poor line contact between cigarette lighter and battery

The wire from the cigarette lighter to the battery is too thin

The contacts on the cigarette lighter have an oxide layer, which makes poor contact.

The wires from the cigarette lighter to the battery are relatively thin and cannot carry a large load

It is not recommended to take electrical appliances with 120W or more from the cigarette lighter

Question: I use a 20A / H battery for a 500W inverter, but I ca nt move more than 200W appliances.

Answer: Yes, a 20A / H battery can only bring appliances below 200W at best. If you want to bring appliances below 500W, please choose a battery above 60A. The larger the ampere-hour, the longer the load time.

1. Power tools series: chainsaw, drilling machine, grinder, sandblaster, punch, weeder, air compressor, etc.
2. Office equipment series: computers, printers, monitors, copiers, scanners, etc.
3. Household appliances series: vacuum cleaners, fans, fluorescent and incandescent lamps, electric scissors, sewing machines, etc.
4. Kitchen appliances series: microwave oven, refrigerator, freezer, coffee machine, blender, ice maker, baking oven, etc.
5. Industrial equipment series: metal halide lamps, high-pressure sodium lamps, ships, vehicles, solar energy, wind power, etc.
6. Electronics series: TV, VCR, game console, radio, power amplifier, audio equipment, monitoring equipment, terminal equipment, server, intelligent platform, satellite communication equipment, etc.

Main indicators of vehicle inverter

Output power: 70W ~ 150W;
Conversion efficiency: greater than 85%; inverter operating frequency: 30kHz ~ 50kHz.

Although the output power is the main indicator, it has always been controversial in practical applications. The output power generally refers to the output power under the test conditions of the national industry standard QC / T 1036. Vehicle power inverters have not been able to unify after-sales and pre-sales markets due to the test conditions of nominal power values and personal safety issues, leaving consumers with some confusion even if the prices of products with the same power are not the same. . Therefore, the Ministry of Industry and Information Technology of the Ministry of Industry and Information Technology Section (2012) Document 68 proposes a national expert standard-setting plan for inverter standards. In January 2015, 47 experts and about 20 industrial personnel from across the country attended the final review of the standard. In April 2016, Gongshen No. 17 document has been published in the standard QC / T1036-2016.

How to use the car inverter

1. Place the converter in a flat place and make sure the switch is off.
2. Connect the red and black wires to the red and black terminals of the converter, and clamp the ends with the positive and negative poles of the battery (the red wire clamps the battery positive pole and the black wire clamps the negative pole). If using a cigarette lighter plug, insert the plug into the cigarette lighter jack.
3. Insert the power plug of the appliance into the AC socket.
4. Turn on the switch of the converter and use it.