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2023.06.26
The difference and relationship between the charger and the power adapter
It is internally composed of a power transformer and a rectifier circuit. It can be divided into an AC output type and a DC output type according to its output type; it can be divided into a wall type and a desktop type according to the connection mode. There is a nameplate on the power adapter, which indicates the power, input, output voltage and current amount, etc., paying particular attention to the range of the input voltage.
In particular, it is pointed out that chargers such as mobile phones and computers do not include a charging control circuit internally, and the charging control circuit is generally placed on the host. Therefore, the mobile phone charger and the laptop charger are actually only power adapters. The internal charger does not include the charging control circuit. The natural mobile phone charger and the laptop charger are similar to the power supply that is controlled by the host. The power adapter is actually a traditional power adapter. It is misleading because everyone is used to calling the power supply for appliances and equipment a charger.
Summarize the difference between the charger and the power adapter: the charger contains the function of the power adapter, but the charger also has constant current, constant voltage, and other control circuits to meet the charging characteristics.
The AC plug is connected by two fork-type contact springs positioned at the center of the base (tuning fork-type AC head) or a smooth hollow metal cylinder positioned at the center of the base (in-line AC head). Connected.
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Also exposed on the outside of the insulating base c...
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