source:power adapter Popular:adapter release time:2021-08-11 10:01:49 Article author:sznbone
With the development of technology, digital products have become very common in our lives. Digital products, as commonly used electronic products in our lives, need to be charged frequently. During the charging process, we sometimes use chargers directly. Charging, sometimes using the USB interface to charge, so what is the difference between using USB to charge and using a charger? Follow the technical staff of the charger manufacturer to find out.
1. Different voltage stability
Compared with the charger, the computer USB voltage has a small error and is also very stable. In this respect, the voltage error and stability are much better than the charger.
Two, the current is different
All the USB voltages of the computer are DC 5V, but the front of the computer uses a small wire for power supply. If you use a low-quality wire, sometimes you are afraid that the current is not enough, not the voltage, which will cause heat. The back of the computer is led out from the motherboard, and the copper skin will be thicker, so there is no concern about heat generation. For charging, a slight voltage fluctuation will not have any effect on charging. To be precise, pulse fluctuation charging for a certain period of time is good for the battery, especially for lead-acid batteries and nickel-hydrogen nickel-cadmium batteries.
Three, the difference in charging speed
Charging through the USB interface of the computer, the maximum current supplied to the computer can only be 500mA, while charging through a charger, it will often exceed 500mA, and many chargers will often be 800-1200mA. In other words, charging through the USB interface of the computer will take longer to charge. If your charger provides a current greater than 500 mA, the charging time will be shorter.
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