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The Working Principle of the On-Board Charger

The working principle of the on-board charger, with the popularity of cars, more and more people are beginning to pay attention to the power demand of cars. Followed by the emergence of car chargers. A car charger is a device that can charge mobile phones, tablet computers and other devices in the car. So, what is the working principle of the car charger?


The Working Principle of the On-Board Charger

The car charger needs to be connected to the car's power system to work properly. Different cars have different power systems, so the on-board charger needs to be designed according to the power system of the car. Generally speaking, this kind of portable DC charger needs to be connected to the car's 12-volt battery. This way, the on-board charger gets its power from the car's electrical system.


Next, the on-board charger needs to convert the current into a voltage and current suitable for charging the device. Different devices require different voltages and currents, so the on-board charger needs to have the ability to convert different voltages and currents. On-board chargers usually have multiple outlets, each of which can provide different voltages and currents according to device requirements.


When the on-board charger is connected to the car's 12-volt battery, the power management chip starts to work. The power management chip is responsible for monitoring the input current and output current and converting them according to the needs of different devices. During the conversion process, the power management chip needs to consider the loss of power. In the process of power conversion, there will always be a part of the power converted into heat. Therefore, the power management chip needs to minimize the power loss.


In addition, the on-board charger also needs to have protection functions. From time to time, equipment may experience abnormal conditions, such as short circuits or overloads. If not protected, these abnormal conditions may cause damage to the on-board charger or equipment. Therefore, the on-board charger needs to consider these abnormal conditions during the design process, and install corresponding protection facilities, such as over-current protection, over-voltage protection and over-temperature protection.


The working principle of the car charger is to convert the current output by the car's 12-volt battery into a voltage and current suitable for charging various devices. This process is controlled and monitored by the power management chip, and is equipped with protection measures to ensure the safety and reliability of the equipment and on-board charger.

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The working principle of the on-board charger, the working principle of the on-board charger, with the popularity of cars, more and more people are beginning to pay attention to the power demand of ca...

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