source:Industry News Popular:adapter release time:2021-12-21 10:50:57 Article author:sznbone
In my life, more and more electrical equipment needs to use power adapters. There are also many mobile devices, almost all use power adapters. So can the power adapter be universal? The editor will explain to you that the power adapter can be universal.
1. Power adapters of different specifications cannot be used universally
①The voltage must be different, otherwise it will burn the electrical appliances or fail to work.
②The output current of the power adapter must be greater than the working current of the electrical appliance, otherwise, the power adapter will "overcurrent" and burn out.
③The interface of the power adapter and the electrical appliance must match, otherwise it cannot be connected.
④The positive and negative polarity should be different to avoid accidents.
Second, what kind of power adapter can be used universally?
The power adapter with proper voltage and current not less than the original power supply can be exchanged. The meaning of proper voltage means that the voltage of the power adapter only needs to be higher than the battery voltage of the notebook 4V to be able to use it, otherwise it will not be able to open the notebook charging and maintenance circuit because of the insufficient voltage.
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