Input current distribution method and device
A technology of input current and distribution method, which is applied in the direction of circuit devices, battery circuit devices, transportation and packaging, etc., and can solve the problem that the total charging efficiency cannot reach the charging efficiency, etc.
Active Publication Date: 2017-10-20
XIAOMI INC
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Problems solved by technology
Due to the different performance of different charging management chips, the average distribution of input current distribution method will cause the total charging efficiency of these charging management chips to not reach the best charging efficiency
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[0067] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.
[0068] figure 1 is a schematic diagram of a charging circuit involved in an input current distribution method shown according to some exemplary embodiments, as shown in figure 1 As shown, the implementation environment may include a processor 10 , a first charging management chip 11 , a second charging management chip 12 and a battery 13 .
[0069] The processor 10 is connected to th...
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The invention discloses input current distribution method and device, and belongs to the field of charging design. The input current distribution method comprises the following steps: calculating first input current required by a first charging management chip when outputting first output current, and second input current required by a second charging management chip when outputting second output current; acquiring first input current and second input current for obtaining the minimal total input current; and determining the first input current corresponding to the minimal total input current to be the input current of the first charging management chip, and determining the second input current corresponding to the minimal total input current to be the input current of the second charging management chip. According to the input current distribution method and device, the problem that the total charging efficiency of these charging management chips cannot reach the optimal charging efficiency due to the distribution mode of equally distributing the input current is solved, so that the efficiency of each charging management chip reaches the optimal state as much as possible according to the efficiency current distribution of the charging management chips.
Description
technical field [0001] The present disclosure relates to the field of charging design, in particular to an input current distribution method and device. Background technique [0002] In order to improve the charging efficiency and shorten the charging time, many manufacturers have proposed the concept of parallel charging, that is, using at least two charging management chips connected in parallel to charge the battery at the same time. [0003] When charging in parallel, the common input current distribution method is to distribute the input current of each charging management chip equally. For example, when the total charging current is 1A, set the input current of the two charging management chips that are charged in parallel to 0.5 A; For another example, when the total charging current is 1A, set the input currents of the four charging management chips charged in parallel to 0.25A. Due to the different performances of different charging management chips, the average di...
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IPC IPC(8): H02J7/00
CPCY02B40/00
Inventor 孙伟张鹏飞孙长宇
Owner XIAOMI INC