Battery Charging Module with Distributed Temperature Sensors
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Solution Overview
Problem
Portable electronic devices face reduced battery charging efficiency due to the limitations imposed by application processors controlling charging based on temperature changes, leading to decreased charging rates in both active and inactive states.
Innovation Solution
The implementation of a charging module that includes multiple temperature sensors at different positions, allowing for adaptive control of the battery charging current based on measured temperatures, thereby reducing the load on the application processor and improving charging efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the application processor controls battery charging based on temperature changes, then temperature management is achieved, but battery charging efficiency is degraded
Solution Approach 1:
The patent divides the temperature monitoring function into multiple independent temperature sensors positioned at different locations within the electronic device. This segmentation allows the charging module to obtain comprehensive temperature data without burdening the application processor, as each sensor independently monitors its local temperature zone and the charging module aggregates this data for charging control decisions.
Solution Approach 2:
The patent introduces a dedicated charging module as an intermediary component between the temperature sensors and the application processor. This charging module specifically handles temperature-based charging control operations, acting as a mediator that processes temperature data from multiple sensors and adjusts charging current accordingly, thereby relieving the application processor of this specific control burden while maintaining effective temperature management.
2Temperature
If the application processor limits battery charging current to control heat, then temperature is managed, but charging rate decreases
Solution Approach 1:
The patent implements dynamic charging current control based on real-time temperature measurements from multiple sensors. The charging module continuously monitors temperature data and dynamically adjusts the charging current accordingly - increasing current when temperatures are low and decreasing it when temperatures rise. This dynamic adjustment optimizes both heat control and charging rate, avoiding the static current limitation approach that reduces charging efficiency.
Solution Approach 2:
The patent changes the control parameter from a fixed current limit imposed by the application processor to a dynamically adjusted current based on temperature feedback. The charging module uses temperature measurements to modulate the charging current parameter in real-time, allowing the system to achieve effective heat control while maximizing charging rate during cooler periods, thereby resolving the contradiction between temperature management and charging speed.
3Temperature
If the application processor monitors temperature at each activation period, then temperature control is maintained, but device load increases
Solution Approach 1:
The patent enables the charging module to autonomously perform temperature-based charging control without requiring continuous application processor intervention. The charging module independently reads temperature data from multiple sensors, processes this information, and adjusts charging current accordingly. This self-service capability eliminates the need for the application processor to wake up at each activation period specifically for temperature monitoring, thereby reducing device load and energy consumption while maintaining effective temperature control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances battery charging efficiency by dynamically adjusting the charging current in response to temperature changes, maintaining optimal charging rates in both active and inactive device states.
Implementation Method 1
a plurality of temperature sensors disposed at different positions
Implementation Method 2
heat generated by the battery charging through an application processor (AP)
Data Source
AI summary
Various embodiments of the present invention relate to an apparatus and a method for controlling battery charging in an electronic device. The electronic device comprises a plurality of temperature sensors disposed at different positions, a battery, a memory, at least one processor, and a charging module for controlling charging of the battery, wherein the charging module may be configured to identify a charging type of the battery, to select at least one temperature sensor among the plurality of the temperature sensors based on the charging type of the battery, and to control a charging current of the battery based on a temperature measured through the at least one temperature sensor. Other embodiments may be possible.