Charging method and charging device

Abstract

The invention discloses a charging method and a charging device. The method is applied to a charging unit, which is connected with a power supply unit and is capable of outputting different current. The method comprises the following steps of: performing trial charging on a battery with preset initial output current; judging whether output voltage meets preset conditions to obtain a first judging result, wherein the preset conditions at least comprise that the output voltage is greater than preset voltage which is minimum voltage capable of charging the battery; and when the first judging result indicates that the output voltage does not meet the preset conditions, adjusting the output current of the charging unit so as to enable the output voltage to meet the preset conditions. With the method and the device, the output current of the charging unit can be adjusted according to different rated power and different types of power supplies, and thus the charging efficiency is improved under the precondition that normal charging can be ensured.

Description

technical field [0001] The invention relates to the field of circuit control, in particular to a charging method and device. Background technique [0002] There are more and more types of electronic devices nowadays. As we all know, the normal operation of electronic equipment is inseparable from the support of power supply. Especially some small electronic devices are usually powered by batteries. [0003] In the prior art, different electronic devices may have different charging platforms. A charging platform usually includes a power supply, a charging cable, and a charging unit (also called a charger). Since the performance of batteries of different electronic devices may be different, and the power of the power supply may also be different, so the output current of the charging unit is also different. This results in that for each electronic device, the user needs to use the charging platform corresponding to the device to charge it. When the user has many types of ...

AI Technical Summary

Problems solved by technology

The above method has obvious disadvantages: when the rated power of the power supply is large and can provide a large actual charging current, using this method will charge with a relatively small fixed output current, resulting in prolonged charging time and low charging efficiency; when the power supply When the rated power is small and can only provide a relatively small actual charging current, using this method will charge with a relatively large fixed output current, resulting in overload of the power supply and failure to charge normally

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