596 views Yuda Electronic (HK) Technology Co.,Limited. 2018-12-24
The output of the car’s power comes from the car battery. The standard voltage of the car battery is 12V. When the engine is working, the battery voltage is about 14.4V. The output is the car cigarette lighter, which becomes the main port of the car charger. The principle of the car charger is to use the socket of the car cigarette lighter as the power source, and charge the original 12V voltage of the car power source to the 5V voltage of the mobile phone through some electronic components to charge the mobile phone. Some vehicles come with a USB interface, but the output current is low, which can’t meet the charging requirements of large-screen mobile phones and tablets. From the perspective of safety and load, the fuses of the general model cigarette lighter interface are around 20A, some advanced models even reach 30A, and the vehicle supply voltage is 12V, so the load capacity of the cigarette lighter interface is basically above 100W. The car charger with 5V output voltage will not have safety hazards.
Another type of car charger can be called a car inverter. Its principle is to convert DC12V DC to AC 220V/110V AC for general electrical appliances. It is a convenient power converter. The car inverter is also powered by a car battery or a cigarette lighter, which can meet the owner’s use of 220V household appliances in the car, such as laptops. Compared to car chargers, car inverters are more expensive, ranging in price from $30 to $150.
Although the car charger is safe in principle, the quality will still affect the safety of use. The car chargers produced by these irregular manufacturers may cause the charger voltage to be unstable due to imperfect technology, and there may be leakage and burnout. Some car chargers do not have a fuse, so when the vehicle voltage is unstable, it is very likely to burn the charging device, and may even cause the car to catch fire.
The vehicle voltage is unstable, and the voltage of the vehicle is high at the moment of starting, so there is still a certain requirement for the safety of the car charger. At the same time, it is not recommended to use it as a charger for mobile phones for a long time. If you use a car inverter, you should pay more attention to the safety of the vehicle, because it will cause harm to the human body when converting the current to 110V/220V household AC.
Yuda Electronics Co., Ltd. is an original phone accessories distributor with 15 years experience, including original Apple/Samsung original car charger, phone charger and other phone accessories, contact us for a free quote.
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