The charger usually refers to a kind of equipment that converts alternating current to low voltage direct current. It includes the control circuit that meets the charging characteristics, such as current limiting and voltage limiting. The power adapter is a power converter after voltage change, rectification and voltage regulation, and the output is DC. Now let's talk about what is a power adapter? What is a charger? What is the relationship between the two and the difference between them.

Charger: The English name charger usually refers to a device that converts alternating current into low-voltage direct current. The charger is a dedicated DC power supply for rechargeable batteries, which includes control circuits such as current limiting and voltage limiting to meet charging characteristics.

Chargers are widely used in various fields, especially in the field of life is widely used in electric vehicles, flashlights and other common electrical appliances. It is generally charged directly to the battery, without any intermediary devices and devices.

The process of the charger is: constant current - constant voltage - trickle, three-stage intelligent charging. The three-stage charging theory in the charging process can greatly improve the charging efficiency of the battery, shorten the charging time, and effectively extend the battery life. 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 charging.

Fast charging stage: High current is used to charge the battery to quickly recover the battery power. The charging rate can reach more than 1C. At this time, the charging voltage is low, but the charging current is limited to a certain value range.

Supplementary charging stage: Compared with the fast charging stage, supplementary charging stage can also be called the slow charging stage. When, at the termination of the stage of quick charge battery has not fully enough, still need to join up the charging process, make up the charging rate is generally not more than 0.3 C, because the battery voltage was increased after a stage of fast charging, so pay for the charge voltage phase should also be improved, and the constant within a certain range.

Trickle charging stage: In the late replenishment stage, when the temperature rises beyond the limit value or the charging current decreases to a certain value, it starts to charge with a smaller current until certain conditions are met and the charging ends.

Power Adapter: English name Adapter, the common power adapter on the market is through the transformer, rectifier and voltage regulator power converter, the output is DC, in the case of power can be understood as low voltage regulator power supply.

The power adapter is widely used in routers, telephone machines, game consoles, language rereaders, walkmen, notebooks, mobile phones and other devices. Most power adapters can automatically detect 100-240 V AC (50/60Hz).

The power adapter is a small portable electronic equipment and electronic electrical power supply conversion equipment, it puts the power external, with a line and the host connected, so that can reduce the volume and weight of the host, only a very small number of equipment and electrical appliances the power supply is built in the host.

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