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Car Charger Select An Overload Protection Feature

With the development of science and technology market, the basic per capita smartphone, especially with the development of vehicle interconnection technology in recent years, the connection of mobile phones and cars more and more closely, which directly caused the consumption of mobile phones faster, so car charger came into being, and quickly spread to most owners.

However, the quality of the product varies, and most owners use improper means of damage to vehicles

Operating principle of Car charger

Principle: Converts the 12V voltage of the car-point cigarette socket into a 5V USB voltage and charging the electronic product through the charging line. In general, car charger is the 12V (Sedan 12V, truck 24V) DC conversion to 5-20V DC power to the car mobile device charging, its characteristics for the power consumption, simple and convenient, cheap.

Use considerations

Do not plug in the car before the start-up charge, lest the voltage at the start of the vehicle damage charge.

The car owners in the use of the time, do not use strong chemical products, cleaning agents, washing the charger detergent. This will severely damage the function of the car charger.

③ in particular, should pay attention to the use of the process do not throw the car charger at random, landing, knock or vibration charger, and when the summer vehicle stagnation and the car temperature more than 45 ℃ do not use the charger, this will seriously damage the on-board charger inside the circuit board.

¢ ④ Car Charger as one of the electronic products, car owners in the use of the process, should be careful not to accidentally water or long time without exposure to damp air, this will cause the internal electronic components of their different degrees of corrosion or oxidation.

Purchase considerations

Select products with overload protection

The requirement of USB specification for current overload protection is not exceeding 5A. Car charger is required to overload protection because when the output current is too large and exceeds its normal output value, the Charger component life will shorten or because of excessive temperature caused damage or even burn. Therefore, the car charger used in the vehicle must have overload protection measures.

On the market, the input voltage of the car charger is basically 12V-24V, the output voltage is 5 V, and the output current is about 1A~4A. But some "three no" or "shanzhai" products generally appear to the phenomenon of charging current.

If the mobile phone provides navigation function is charging, inferior charger not only can not provide the normal charge also will continue to reduce the electricity.


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