source:power adapter Popular:adapter release time:2021-08-31 09:57:04 Article author:sznbone
I believe everyone has heard of the power adapter, but it has always been confused with the charger. In fact, the charger usually refers to a device that converts AC power into low-voltage DC power. The power adapter is a power conversion that undergoes transformation, rectification and stabilization. Today, the editor will introduce the difference between a power adapter and a charger:
Power adapter: English name Adapter, the common power adapter on the market is a power converter that undergoes transformation, rectification, and stabilization. The output is DC, which can be understood as a low-voltage stabilized power supply when the power is satisfied.
Power adapters are widely used in routers, phone handsets, game consoles, language repeaters, walkmans, notebooks, mobile phones and other equipment. Most power adapters can automatically detect 100~240V alternating current (50/60Hz).
The power adapter is a power supply conversion device for small portable electronic equipment and electronic appliances. It puts the power supply externally and connects it to the host with a line, which can reduce the size and weight of the host. Only a few devices and electrical appliances have the power supply built in the host. Inside.
It is internally composed of a power transformer and a 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 and current and other indicators. Pay special attention to the range of the input voltage.
Charger: The English name Charger, usually refers to a device that converts AC power into low-voltage DC power. The charger is a dedicated DC power supply for rechargeable batteries. It includes current limiting, voltage limiting and other controls that meet the charging characteristics. Circuit.
Chargers are widely used in various fields, especially in the field of life are widely used in electric vehicles, flashlights and other common electrical appliances. It generally charges the battery directly without passing through any intermediary equipment and devices.
The process of the charger is: constant current-constant voltage-trickle current, three-stage smart 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 uses constant current charging first, then constant voltage charging, and finally floating charging for maintenance charging.
is generally divided into three stages: fast charging, complementary charging, and trickle charging:
Fast charging stage: The battery is charged with a large current to quickly restore 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 to a certain value range.
Complementary charging phase: Compared with the fast charging phase, the complementary charging phase can also be called the slow charging phase. When the fast charging phase is terminated, the battery is not fully sufficient, and a complementary charging process needs to be added. The complementary charging rate generally does not exceed 0.3C, because the battery voltage increases after the fast charging phase, so the charging voltage during the charging phase is supplemented It should also be improved and kept within a certain range.
trickle charging stage: in the late stage of complementary charging, when the temperature rise exceeds the limit value or the charging current decreases to a certain value, the charging is started with a smaller current until certain conditions are met and the charging ends.
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