The relationship between power adapter and charger

A charger usually refers to a device that converts AC power into low-voltage DC power. It includes control circuits such as current limiting and voltage limiting that meet the charging characteristics. The power adapter is a power converter that undergoes voltage transformation, rectification, and stabilization, and outputs DC power. It can be understood as a low-voltage stabilized power supply when it meets the power requirements. Next, let's talk about what a power adapter is? What is a charger? What is the relationship and difference between the two.

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

Chargers are widely used in various fields, especially in common electrical appliances such as electric vehicles and flashlights in daily life. It generally charges the battery directly without any intermediary devices or devices

The process of the charger is: constant current constant voltage trickle, three-stage intelligent charging. The three-stage charging theory during 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 first, then constant voltage charging, and finally float charging for maintenance charging.

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

Fast charging stage: Charge the battery with high current to quickly restore battery energy, with a charging rate of over 1C. At this time, the charging voltage is low, but it will limit the charging current to a certain range of values.

Supplementary charging stage: Compared to the fast charging stage, the supplementary charging stage can also be called the slow charging stage. When the fast charging stage ends, the battery is not fully charged and a supplementary charging process needs to be added. The supplementary charging rate generally does not exceed 0.3C, because the battery voltage increases after the fast charging stage, so the charging voltage during the supplementary charging stage should also increase and remain constant within a certain range.

Trickle charging stage: In the later stage of the supplementary charging stage, when the temperature rise exceeds the limit value or the charging current decreases to a certain value, the charging starts with a smaller current until certain conditions are met and the charging ends.

Power adapter: The English name is Adapter. A common power adapter on the market is a power converter that has undergone voltage transformation, rectification, and stabilization, and outputs DC. It can be understood as a low-voltage stabilized power supply when meeting power requirements.

Power adapters are widely used in routers, telephone consoles, game consoles, language repeaters, walkthroughs, laptops, mobile phones, and other devices. Most power adapters can automatically detect 100-240V AC power (50/60Hz).

A power adapter is a power supply conversion device for small portable electronic devices and appliances. It connects the power supply externally to the host using a single cable, which can reduce the size and weight of the host. Only a few devices and appliances have the power supply built into the host.

It is composed of a power transformer and a rectifier circuit internally, and can be divided into AC output type and DC output type according to its output type; According to the connection method, it can be divided into wall mounted and desktop mounted. There is a nameplate on the power adapter, which indicates indicators such as power, input/output voltage, and current. Special attention should be paid to the range of input voltage.