Charger output current control method and device
A technology of output current and control method, applied in the field of charger output current control method and device, capable of solving problems such as terminal overheating, excessive temperature difference between the first charger and the second charger, etc.
Active Publication Date: 2021-05-18
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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[0007] By calculating the temperature difference between the first charger and the second charger in real time, and when the absolute value of the difference is greater than the predetermined difference threshold, the output current of the charger with higher temperature is lowered, and the output current of the charger with lower temperature is increased. The output current of the charger is used to reduce the temperature difference between the first charger and the second charger, which solves the technical problem of local overheating of the terminal due to the excessive temperature difference between the first charger and the second charger during parallel charging, and achieves the goal of maintaining The technical effect of the similar temperature of the first charger and the second charger
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[0031] 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.
[0032] figure 1 It is a flow chart of a charger output current control method shown according to an exemplary embodiment, and the charger output current control method is applied to a terminal including a first charger, a second charger and a battery, such as figure 1 shown, including the following steps.
[0033] In step 101, when the first charger and the second charger are chargin...
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The disclosure discloses a charger output current control method and device, belonging to the field of charger design. The charger output current control method includes: when the first charger and the second charger charge the battery, obtain the temperature of the first charger and the temperature of the second charger; calculate the temperature of the first charger and the temperature of the second charger The temperature difference between the chargers; when the absolute value of the difference is greater than the predetermined difference threshold, the output current of the charger with the highest temperature among the first charger and the second charger is adjusted down, and the first charger The output current of the charger with the lower temperature among the charger and the second charger is increased, wherein the sum of the output current of the first charger and the output current of the second charger is equal to a constant total output current. The technical problem of local overheating of the terminal caused by the excessive temperature difference between the two chargers is solved, and the technical effect of keeping the temperatures of the two chargers close is achieved.
Description
technical field [0001] The present disclosure relates to the field of charger design, in particular to a method and device for controlling output current of a charger. Background technique [0002] In the early days, when people used high current charging, they usually used one charger to charge, which caused the charger to heat up severely and affect the charging efficiency. In the later period, people used double chargers to charge to alleviate the severe heating on one charger. [0003] In the related art, in the constant current charging stage, the output currents of the main charger and the auxiliary charger are each half of the total output current. And compared with the auxiliary charger, the main charger not only charges the battery, but also supplies power to the terminal load. [0004] Because the main charger needs to supply additional power to the terminal load, the temperature difference between the two chargers will be too large, and the positions of the main...
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IPC IPC(8): H02J7/00
CPCH02J7/007
Inventor 杨大伟王彦腾赵青晖
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD