Terminal device and conversion circuit control method

A technology for converting circuits and terminal equipment, which is applied in the direction of circuit devices, battery circuit devices, collectors, etc., can solve problems such as low voltage conversion efficiency, reduced battery remaining capacity, and shutdown of terminal equipment, so as to improve voltage conversion efficiency and reduce capacity Loss, the effect of increasing the total voltage

Inactive Publication Date: 2019-07-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current conversion circuit has the problem of low voltage conversion efficiency or a significant reduction in the remaining battery capacity of the battery pack at low temperature, which leads to the shutdown of the terminal equipment.

Method used

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  • Terminal device and conversion circuit control method
  • Terminal device and conversion circuit control method
  • Terminal device and conversion circuit control method

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Embodiment Construction

[0079] The technical solution in this application will be described below with reference to the accompanying drawings.

[0080] It should be understood that in each embodiment of the present application, "first", "second", etc. are only used to refer to different objects, and do not mean that there are other limitations on the referred objects.

[0081] In order to increase the total voltage of the terminal equipment power supply system, a battery assembly with a battery series structure is usually used. For battery components with battery series structure, since the voltage range provided by them is greater than the operating voltage range of the system load, it is necessary to use a conversion circuit to convert the voltage provided by the battery components into the input voltage of the system load.

[0082] Generally, the terminal equipment of the terminal equipment can use a variable step-down ratio circuit (for example, a step-down chopper buck circuit) to step down the ...

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PUM

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Abstract

The invention provides a terminal device and a conversion circuit control method. The terminal device comprises a battery assembly, a charging circuit, a first conversion circuit, a second conversioncircuit, a controller and a system load; the controller is used for acquiring a current total voltage of the battery assembly; the battery assembly comprises at least two batteries connected in series; and the controller is further used for controlling one of the first conversion circuit and the second conversion circuit to start to work according to the current total voltage, wherein an output voltage of the first conversion circuit is a fixed value, and the voltage reduction rate of the second conversion circuit is a fixed value. According to the technical scheme, different conversion circuits can be selected according to the current total voltage of the battery assembly obtained in real time, so that the usability of the terminal device is improved.

Description

technical field [0001] The present application relates to the field of electronic equipment, and more specifically, to a terminal equipment and a method for controlling a conversion circuit. Background technique [0002] In order to increase the total voltage of the battery components of the terminal equipment, the battery components of the terminal equipment generally adopt a battery series structure. For a battery assembly in which multiple batteries are connected in series, a conversion circuit is required to convert the voltage provided by the battery assembly into the input voltage of the system load in the terminal device. [0003] However, the current conversion circuit has a problem that the voltage conversion efficiency is low or the available battery remaining capacity of the battery module is greatly reduced at low temperature, which leads to the shutdown of the terminal device. Contents of the invention [0004] The present application provides a terminal devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J2207/20
Inventor 汤瑞超汪会何军
Owner HUAWEI TECH CO LTD
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