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This article mainly introduces the differences between the power adapter and the charger, the article is very detailed, has a certain reference value, interested friends must read it!

Differences: 1. The power adapter is composed of shell, transformer, PCB board, etc., and the charger is composed of shell, input, output and so on. 2. The current mode of the power adapter is from AC input to DC output, and the current mode of the charger uses a constant current voltage limiting charging system.

The difference between power adapter and charger

The main differences between power adapters and chargers are as follows

1. The definition is different. Power adapter is a kind of equipment for power conversion of electronic equipment and electrical appliances. The charger is a kind of high frequency power supply technology and advanced intelligent dynamic adjustment charging technology.

2. the structure is different, and the power adapter is composed of shell, transformer, PCB board and so on The charger consists of a shell, an input terminal, an output terminal, etc.

3. The current mode is different. The current mode of the power adapter is from AC input to DC output. The current mode of the charger uses a constant current and voltage limiting charging system.

Charger:

The English name Charger usually refers to a kind of equipment that converts alternating current into low-voltage direct current. The charger is a special DC power supply for rechargeable batteries. It includes current-limiting, voltage-limiting and other control circuits that meet the charging characteristics.

Chargers are widely used in various fields, especially in the field of life, they are widely used in electric cars, flashlights and other common electrical appliances. It generally charges the battery directly without going through any intermediary equipment or device.

The process of the charger is: constant current-constant voltage-trickle down, three-step intelligent charging. The three-stage charging theory in the charging process can greatly improve the battery charging efficiency, shorten the charging time, and effectively prolong the battery life. The three-stage charging adopts constant current charging, then constant voltage charging, and finally floating charging for maintenance charging.

It is generally divided into three stages: fast charging, supplementary charging and trickle-down charging.

Fast charging stage: use a large current to charge the battery to quickly restore battery power, the charging rate can reach more than 1C, when the charging voltage is low, but will limit the charging current within a certain range.

Supplementary charging stage: compared with the fast charging stage, the supplementary charging stage can also be called the slow charging stage. When the fast charging stage is terminated, the battery is not fully sufficient, and the supplementary charging process needs to be added. The supplementary charging rate is generally not more than 0.3C, because the battery voltage increases after the fast charging stage. Therefore, the charging voltage of the supplementary charging stage should also be increased, and always within a certain range.

Trickle-down charging stage: in the later stage of the supplementary charging stage, when it is detected that the temperature rises beyond the limit or the charging current decreases to a certain value, it begins to charge with a smaller current until the charging ends after certain conditions are met.

Power Adapter:

English name Adapter, the common power adapter in the market is a variable voltage, rectified and stabilized power converter, the output is DC, in the case of meeting the power can be understood as a low voltage stabilized power supply.

Power adapters are widely used in routers, telephone mother machines, game consoles, language repeaters, Walkman, notebooks, mobile phones and other devices. Most power adapters can automatically detect 100,240V alternating current (50/60Hz).

The power adapter is a power conversion equipment for small portable electronic devices and electronic appliances. It externally connects the power supply with a cable to the host, which can reduce the volume and weight of the host. Only a few devices and appliances have built-in power supply in the host.

It is composed of power transformer and rectifier circuit. According to its output type, it can be divided into AC output type and DC output type; according to the connection mode, it can be divided into wall type and desktop type. There is a nameplate on the power adapter, which indicates the power, input and output voltage, current and other indicators, pay special attention to the range of input voltage.

What is the function of the power adapter

Generally speaking, the functions of power adapters are transformers and rectifiers. Household AC is 220v, while our computer is DC 12v (as if), so we can be sure that the power adapter is a transformer and rectifier. The adapter is a transformer, so we should all know that AC 220v changes voltage through the transformer and DC through the rectifier, there is consumption here, and these consumption will be converted into heat, so it is normal for the power adapter to heat up.

The transformer is made of silicon steel sheet, after the transformer is electrified, the magnetic flux will cause the action of force between the silicon steel sheets, resulting in a buzzing sound, which is normal. But the sound of the earth 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 and so on. By the way, the function of the adapter is to convert alternating current into direct current.

Power adapters with large space are generally built-in, generally adapters are not small, small machines are external, in order to save space, it is also convenient to replace, the power supply used by the adapter is relatively high, and it is more dangerous to put it inside the machine.

These are all the contents of this article entitled "what are the differences between power adapters and chargers". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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