Charger usually refers to a device that converts alternating current into low-voltage direct current. It includes current limiting, voltage limiting and other control circuits that meet the charging characteristics. The power adapter is a power converter that passes through voltage transformation, rectification and voltage stabilization. The output is direct current. It can be understood as a low-voltage regulated power supply when the power is met. Now let's talk about the power adapter? What is a charger? What is the relationship and difference between them.
Charger: the English name charger usually refers to a device that converts AC to low-voltage DC. 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 vehicles, flashlights and other common electrical appliances. It usually charges the battery directly without any intermediary equipment and devices
The process of 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. The three-stage charging adopts constant current charging first, then constant voltage charging, and finally adopts floating charging for maintenance charging.
It is generally divided into three stages: rapid charging, supplementary charging and trickle charging:
Fast charging stage: charge the battery with high current 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 will be limited 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 rapid charging phase ends, the battery is not fully sufficient, 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 rapid charging phase, the charging voltage in the supplementary charging phase should also be increased and kept within a certain range.
Trickle charging stage: at the later stage of the supplementary charging stage, when it is detected that the temperature rises beyond the limit value or the charging current decreases to a certain value, start charging with a smaller current until certain conditions are met.
Power adapter: its English name is adapter. The common power adapter in the market is a power converter through voltage transformation, rectification and voltage stabilization. The output is DC. It can be understood as a low-voltage regulated power supply when the power is met.
Power adapters are widely used in routers, telephone subcomputers, game consoles, language repeaters, walkmans, notebooks, mobile phones and other devices. Most power adapters can automatically detect 100 ~ 240V AC (50/60hz).
The power adapter is a power supply conversion device for small portable electronic equipment and electronic appliances. It places the power supply outside and connects it with the host with a line, which can reduce the volume and weight of the host. Only a few devices and appliances have the power supply built in the host.
It is internally 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 / output voltage, current and other indicators. Pay special attention to the range of input voltage.
The power adapter manufacturer asks xinjukang Technology: http://www.xjkpower.com
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