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Does the car phone charger affect the phone?

2019-09-09

Nowadays, many car owners will equip themselves with a car phone charger to prevent the phone from being missed when driving. The biggest advantage of the phone charger is that it is easy to use. So, does the car phone charger affect the phone? I believe this question is also a question in the minds of many people. Therefore, I will briefly analyze it for you.

Right Angle

First of all, the car charger that is conventionally used for powering car batteries (car 12V, truck 24V) is widely used in the charging of lithium batteries for various portable and handheld devices, such as: mobile phones, PDAs, GPS, etc.; To consider the actual needs of lithium battery charging (constant voltage CV, constant current CC, over voltage protection OVP), but also take into account the harsh environment of the car battery (transient spike voltage, system switching noise interference, EMI, etc.); The power management IC selected by the solution must meet the requirements of: high-voltage, high-efficiency, high-reliability, low-frequency (favorable EMI design) switching power supply chip; popularly speaking, it requires "pure".

The car phone charger is a convenient accessory for the car owner to charge the digital product anytime and anywhere. Some high-end car phone chargers generally include two USB ports, which can charge two digital products at the same time. These products generally have overload protection, short circuit protection, high voltage input protection, high temperature protection, and four safety protection functions to ensure safe use. The car phone charger can also be used at home, and it can realize three-in-one multi-purpose use of car charger, direct charge and USB charge.

The principle of the car phone charger is to charge the phone after the voltage of 12 volts is reduced to 5 volts. Due to the price limit of the charger, the circuit has many defects, and the protection function of the circuit is almost no. If the buck and current limiting circuit fails, It will lead to 12 volts directly into the phone, and the phone will die. It is also recommended to use the car inverter to rise to 220 volts, and then use the original charger to charge, so it is safe to the mobile phone battery. Where the car charger is plugged into the car, the output voltage is a DC point, which is between 12v and 24v. If the quality of the car phone charger is not very bad, it will not affect the phone charging, but it is not recommended to use it frequently.

The above is the answer to the question that the car phone charger has an impact on the mobile phone. I hope that everyone can use the car charger correctly and try to avoid harm to the mobile phone.

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