Introduce the difference between lithium ion battery charger and power adapter

What is a lithium-ion battery charger? A charger generally refers to a device that converts exchange power into low-voltage direct current. It contains a control circuit with satisfactory charging characteristics such as current limiting and voltage limiting. According to the original materials, the chargers are divided into lead-acid battery chargers, nickel-cadmium/nickel-metal hydride chargers, and lithium-ion battery chargers. The basic components of lithium-ion battery chargers and other rechargeable battery chargers are communicative, consisting of three parts: 1, housing, 2, input/output line, 3, circuit board, heat sink, and various electronic components. In principle, it is composed of a constant power supply plus necessary control circuits such as constant current, voltage limit, and time limit. The charger process is: constant current-constant voltage-trickle, three-stage smart charging. Range of chargers: chargers are widely used in various scales, especially in the subsistence scale, they are widely used in common electrical appliances such as electric vehicles, flashlights, new energy vehicles and UPS power supplies. It generally charges the battery directly without passing through any intermediary equipment and devices. What is a power adapter? The adapter is an interface transfer device. The first purpose of using the adapter is to stabilize the AC/DC power into the electrical equipment. There is no storage of power during this period. Once there is no AC/DC power, The adapter cannot effectively get the power to the electric equipment; the second is that it may be an external power supply as a built-in power supply. The adapter can be an independent hardware interface device or an information interface. The adapters used generally include power adapters, USB and serial port adapters, etc. The result of the power adapter: The power adapter is a power regulator that transforms, rectifies and stabilizes the voltage. The output is DC, which can be understood as a low-voltage stabilized power supply under a satisfactory power environment. The important result of the power adapter is voltage stabilization, which is generally composed of a housing, a power transformer, and a rectifier circuit. Suitable for small portable UPS electronic equipment and power supply transfer equipment for electronic appliances. It is internally composed of a power transformer and a rectifier circuit. According to its output examples, it can be divided into exchange output type and DC output type; according to the connection method, it can be divided into wall type and desktop type. The scope of power adapter combination: power adapters are used in routers, phone handsets, game consoles, language repeaters, walkmans, notebooks, mobile phones and other equipment. Most power adapters can automatically detect 100～240V exchange power (50/60Hz). Power adapters with large space are generally built-in. Generally, the size of the adapter is not small, and the small size is external. In order to save space, it is also convenient to change. The mains voltage of the adapter is relatively high, and it is rigid. The internal rivalry is dangerous. The difference between a lithium-ion battery charger and a power adapter: ●The biggest difference between a charger and an adapter is that the charger only charges the battery, and the adapter not only charges the battery, but also powers the host; ●The lithium-ion battery charger includes The power adapter is effective because it has one more control circuit than the adapter. For example, the mobile phone charger includes three stages of constant current, constant voltage, and trickle charge. This is determined by the design of the charger itself, and the notebook computer The charging control is in the computer body, and the adapter only serves the purpose of voltage stabilization, and does not have the constant current and voltage limiting design of the above-mentioned charger. ●Lithium-ion battery charger has the current and voltage control results that are suitable for battery charging, and can be blocked after floating charge after abundant electricity. ●The adapter usually only supplies a 5V DC power supply of hundreds of mA, and the charging control circuit (such as a mobile phone) is required to be able to charge. What is the difference between a battery charger and a lithium-ion battery charger? Lithium-ion battery: charging control is to charge according to a constant current, and then when the battery voltage rises to 4.2V, the voltage does not rise, and the charger detects the current. If the current is less than a certain value, the charge is over. Lithium batteries are sensitive to overcharge, so the protection circuit is huge. The maximum charging rated voltage for a single battery with a nominal 3.6V is 4.2V, and the upper limit of the allowable error is not more than 1%. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the methods for protecting lithium-ion battery overcharge?