What is the difference between a power adapter and a charger? Can the two be mixed?
Views : Update time : 2021-08-20
With the development of society and the popularization of science and technology, more and more people use electronic products. For example: mobile phone power cable, data cable, charger, charging socket, laptop charging cable, USB, etc. These may all be adapters. Think about how we charge our mobile phones and laptops every day? Today, weisp Xiaobian mainly tells you the difference between power adapter and charger, what adapter is and what role power adapter plays. Let's learn about it.The difference between power adapter and charger, can they be mixed?
Charger: the English name of charger is charger, which is usually a device that converts AC into low-voltage DC. The charger is a DC power supply dedicated to charging the battery, including current limit, voltage limit and other control circuits to meet the charging characteristics.
Chargers are widely used in various fields, especially in the field of life. They are widely used in electric vehicles, flashlights and other common electrical appliances. It usually charges the battery directly without any intermediate equipment.
The difference between power adapter and charger is that the process of charger is: constant current - constant voltage - trickle, three-level intelligent charging. The three-stage charging theory can greatly improve the charging efficiency, shorten the charging time and prolong the battery life. The three-level charging adopts constant current charging, constant voltage charging and floating charging for maintenance charging.
Generally, it can be divided into three stages: rapid charging, supplementary charging and trickle charging:
Fast charging stage: charging the battery with high current can quickly restore the battery power, the charging rate can reach 1C or above, the charging voltage is low, but the charging current will be limited to a certain range.
The difference between the power adapter and the charger constitutes the charging phase: compared with the fast charging phase, the supplementary charging phase can also be called the slow charging phase. At the end of the fast charging phase, the battery is not fully sufficient, and the supplementary charging process needs to be added. The supplementary charging rate generally does not exceed 0.3C. As the battery voltage increases after the fast charging stage, the supplementary charging voltage should also increase and remain within a certain range.
Trickle charging stage: in the later stage of the charging stage, when it is detected that the temperature rise exceeds the limit value or the charging current decreases to a certain value, start charging with a small current until certain conditions are met.
The common power adapter in the market is the power converter. The output is DC through the converter, rectifier and regulator. In case of power supply, it can be understood as a low-voltage regulator.
The difference between power adapter and charger is that power adapter is widely used in routers, telephone hosts, game consoles, language transponders, walkmans, laptops, mobile phones and other devices. Most power adapters can automatically detect 100 ~ 240V AC (50 / 60Hz).
Power adapter is a small portable electronic equipment and electronic and electrical power conversion equipment. It connects a line outside the power supply with the host, which can reduce the size and weight of the host. Only a few are built in the integrated power part of the host equipment, mainly considering the volume, cost, certification and other factors.
The difference between power adapter and charger, its internal power transformer and rectifier circuit can be divided into AC output type and DC output type according to its output type; According to the connection mode, it can be divided into wall type and desktop type. Each power adapter has a nameplate indicating the power supply, input / output voltage and current, and pay special attention to the range of input voltage.
What's the use of a power adapter
What is the function of the power adapter? Generally speaking, the function of power adapter is transformer and rectifier. The AC at home is 220V and the computer is 12V DC, so we can determine that the power adapter is transformer and rectifier. The adapter is a transformer, so we should know that AC 220V changes voltage through the transformer and DC changes voltage through rectification. There is consumption. These consumption will be converted into heat, so the heating of the power adapter is normal.
The transformer is made of silicon steel sheet. When the transformer is energized, magnetic flux will be generated. It is normal that the magnetic flux will produce a force between silicon steel sheets and produce a buzzing sound. However, excessive sound is not normal for many reasons: 1. The AC voltage is unstable. 2. The chip is damaged. 3. Turn to turn short circuit. 4. Component damage, etc. By the way, the purpose of the adapter is to convert alternating current into direct current.
Generally, the space size required by the adapter is not small. Machines with small volume will choose external power adapter. In order to save the design volume and space of the product and facilitate replacement, the adapter is practical. Generally speaking, the higher the voltage, the more dangerous it will be placed inside the machine. Therefore, the separation of power adapter and equipment is mainly to isolate the area of high and low voltage conversion, so the equipment is relatively safer. The cost is also lower.
Due to different functions. The power adapter and charger cannot be mixed, especially when the power adapter is connected to the battery, the adapter cannot complete the charging operation of the battery. If the battery has no protective device, it may directly cause damage to the battery. So please make sure whether it matches before use.
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