Charging method and charging device

A technology of a charging device and a charging method, which is applied in the direction of circuit devices, battery circuit devices, secondary battery charging/discharging, etc., can solve problems such as prolonged charging time, failure to charge normally, and power overload, and achieve the effect of improving charging efficiency

Active Publication Date: 2013-10-30
LENOVO (BEIJING) CO LTD
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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 ef

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  • Charging method and charging device
  • Charging method and charging device

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[0064] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0065] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0066] The charging method of the present invention is applied to a charging unit. The charging unit is connected to the power supply unit, and the charging unit can outp...

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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 ...

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Application Information

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IPC IPC(8): H01M10/44H02J7/00
CPCY02E60/12Y02B40/00Y02E60/10
Inventor 马超张大为
Owner LENOVO (BEIJING) CO LTD
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