With the development of society and the popularization of technology, more and more people are beginning to use electronic products. For example: mobile phone power cords, data cables, chargers, charging sockets, laptop charging cables, USB, etc. These can be adapters. Think about how to charge your mobile phone or laptop every day. Today I will explain the difference between a power adapter and a charger, what is an adapter, and the role of a power adapter. Let’s take a look!
What is the difference between a power adapter and a charger? Please be patient to know the answer after reading it!
charger
It is a device that converts alternating current into low-voltage direct current. The charger is a DC power supply dedicated to rechargeable batteries. It contains control circuits such as current limit and voltage limit to meet the charging characteristics. It usually charges the battery directly without passing through any intermediate devices.
The process of the charger is: constant current-constant voltage-trickle, three-level smart charging. Adopting the three-level charging theory can greatly improve the charging efficiency, shorten the charging time, and extend the battery life. The three-level charging adopts constant current charging, constant voltage charging, and floating charging for maintenance charging.
Power Adapter
A common power adapter in the market is a power converter that passes through a converter, a rectifier, and a regulator, and the output is direct current, which can be understood as a low-voltage regulator when it encounters a power source.
The power adapter is a small portable electronic device and electronic and electrical power conversion equipment. It connects the power supply with a line to the host. This can reduce the size and weight of the host. Only a few are built in the host device to integrate the power supply part, which is mainly considered Many factors such as volume, cost, or certification.
Power adapters are widely used in routers, telephone hosts, game consoles, language repeaters, walkmans, laptops, mobile phones and other equipment. Most power adapters can automatically detect 100 ~ 240V ac (50/60Hz).
The power transformer and rectifier circuit inside the power adapter can be divided into AC output type and DC output type according to its output type; according to the connection mode, it can be divided into wall type and desktop type. Each power adapter has a nameplate indicating the power supply, input/output voltage and current, and pay special attention to the input voltage range.
Let me explain one thing to everyone:
The transformer is made of silicon steel sheet. After the transformer is energized, magnetic flux is generated. Magnetic flux will generate force between the silicon steel sheets and produce a buzzing sound, which is normal. However, the excessively loud sound is not normal. There are many reasons: 1. The AC voltage is unstable; 2. The chip is damaged; 3. The turn-to-turn short circuit; 4. The component is damaged. By the way, the purpose of the adapter is to convert alternating current into direct current.
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