Battery voltage-multiplying charging circuit and mobile terminal

A charging circuit and mobile terminal technology, applied in battery circuit devices, electric vehicles, circuit devices, etc., can solve problems such as heating of the battery body, and achieve the effect of increasing the charging speed

Inactive Publication Date: 2016-09-28
LEMOBILE INFORMATION TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The embodiment of the present invention provides a battery voltage doubler charging circuit and a mobile terminal to so

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example one

[0020] Reference image 3 , Shows a schematic diagram of a battery voltage doubler charging circuit according to the first embodiment of the present invention.

[0021] The battery voltage doubler charging circuit of the embodiment of the present invention includes: a charging port 301, a high-voltage charging unit 302, a low-voltage charging unit 303, a battery pack 304, and a system 305. The battery pack 304 includes a main battery 3041 and a secondary battery 3042. .

[0022] Among them, the high-voltage charging unit 302 and the low-voltage charging unit 303 are connected to the charging port 301 respectively, the low-voltage charging unit 303 is connected to the system 305 and the battery pack 304 respectively; the high-voltage charging unit 302 is connected to the battery pack 304.

[0023] When performing fast charging, the main battery 3041 and the secondary battery are switched to the serial state, the charging voltage is transmitted to the high-voltage char

Example Embodiment

[0030] Example two

[0031] Reference Figure 4 , Shows a schematic diagram of a battery voltage doubler charging circuit according to the second embodiment of the present invention.

[0032] Such as Figure 4 As shown, the battery voltage doubler charging circuit provided by the embodiment of the present invention includes: a charging port, namely, a charging port, a high voltage charging unit, namely, a High voltage PMIC, a low voltage charging unit, a battery pack, and a system. The battery pack includes a main battery, namely the main battery. And a secondary battery, namely Sendbattery; the low-voltage charging unit is a normal charging unit Nomal PMIC, which provides normal mode charging for the battery pack.

[0033] Such as Figure 4 As shown, the high-voltage charging unit and the low-voltage charging unit in the battery voltage doubler charging circuit are respectively connected to the charging port, the low-voltage charging unit is respectively connected to the system and

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PUM

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Abstract

The embodiment of the invention provides a battery voltage-multiplying charging circuit and a mobile terminal. The charging circuit comprises a charging port, a high-voltage charging unit, a low-voltage charging unit, a battery pack and a system. The battery pack includes a main battery and at least one extra battery; the high-voltage charging unit and the low-voltage charging unit are connected with the charging port, and the low-voltage charging unit is connected with the system and the battery pack; the high-voltage charging unit is connected with the battery pack; when quick charging is performed, the main battery and each extra battery are switched to be a series connection state, the charging voltage is transmitted to the high-voltage charging unit and the low-voltage charging unit through the charging port, the main battery and each extra battery are charged by the high-voltage charging unit, and the system is charged by the low-voltage charging unit; and when the charging is completed, the main battery and each extra battery are switched to be a parallel connection state and configured to charge the system. The battery voltage-multiplying charging circuit provided by the embodiment of the invention is able to avoid the problem that the battery body is heating and too high in temperature in the charging process.

Description

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Claims

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Application Information

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Owner LEMOBILE INFORMATION TECH BEIJING
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