Portable Power Supply Control for Dynamic Reserved Battery Capacity
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Solution Overview
Problem
Conventional power supply systems in electronic devices lack the ability to dynamically adjust reserved battery capacity, leading to inefficiencies due to varying battery cell characteristics and potential permanent failure from over-discharge.
Innovation Solution
A control method and device that includes a power supply module and a control circuit to detect system and module status, dynamically adjusting the reserved battery capacity based on factors like system leakage current, battery temperature, health, and voltage to prevent over-discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed reserved battery capacity is implemented, then permanent failure due to over power consumption is prevented, but battery efficiency is affected when the same battery cell is applied to different electronic devices with varying system loading and battery characteristics
Solution Approach 1:
The patent implements a dynamic reserved battery capacity adjustment mechanism that automatically modifies the reserved capacity based on real-time detection of system loading, battery characteristics, and operational status. This transforms the static fixed reserved capacity into a dynamic parameter that adapts to different electronic devices and operating conditions, resolving the contradiction between reliability and adaptability
Solution Approach 2:
The system changes the parameter of reserved battery capacity from a fixed value to a variable that is adjusted based on detected system conditions. By monitoring battery voltage, current, temperature, and system loading, the controller modifies the reserved capacity parameter to optimize both reliability and battery efficiency across different device configurations
2Quantity of substance
If no reserved battery capacity is maintained, then total battery capacity is maximized for display on the operating system, but the battery is vulnerable to over-discharge and permanent failure
Solution Approach 1:
The system dynamically adjusts the reserved battery capacity based on real-time detection of system loading and battery status. When system loading is low or during idle periods, the reserved capacity is reduced to maximize available capacity. When system loading increases or battery stress is detected, the reserved capacity is automatically increased to prevent over-discharge, thus resolving the contradiction between maximizing capacity and ensuring protection
Data Source
AI summary
A control method of power supply for a portable electronic device is disclosed. The portable electronic device includes a power supply module and a control circuit, and the power supply module is configured to provide electric power to the portable electronic device. The control method of power supply includes detecting, by the control circuit, a system status of the portable electronic device or a module status of the power supply module; and adjusting, by the control circuit, a reserved battery capacity of a main battery of the power supply module according to the system status of the portable electronic device or the module status of the power supply module.