Multi-Battery Power Switching for Stable Shutdown Control
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Solution Overview
Problem
Conventional electronic devices face issues with power management when using multiple types of batteries, leading to inefficient use and potential power interruptions due to mismatched power supply and consumption, especially when high power incompatible batteries are used.
Innovation Solution
An electronic apparatus and control method that switches batteries based on information about their power supply states, adjusting shutdown processing differently for same-type and different-type batteries to optimize power usage and extend operational time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If shutdown voltage is lowered to extend battery usage, then operational time increases, but power interruption risk increases when using high power incompatible batteries
Solution Approach 1:
The shutdown voltage threshold is made dynamic rather than fixed. The control unit automatically adjusts the shutdown voltage based on battery type detection and real-time power supply state monitoring. For high power compatible batteries, a lower shutdown voltage threshold is used to maximize operational time. For high power incompatible batteries, a higher shutdown voltage threshold is used to prevent power interruption, thus resolving the contradiction between extending operational time and maintaining power supply stability
Solution Approach 2:
The patent changes the parameter of shutdown voltage threshold based on different battery types and power supply states. By detecting battery characteristics and monitoring power supply conditions, the system adjusts the voltage threshold parameter adaptively. This allows the system to optimize operational time when using high power compatible batteries while preventing power interruptions when using high power incompatible batteries
2Ease of manufacture
If high power incompatible batteries are used to reduce cost, then device cost decreases, but power supply capacity becomes insufficient for high performance operation
Solution Approach 1:
The system implements feedback control by continuously monitoring the power supply state and comparing it with the power consumption requirements. When using high power incompatible batteries, the control unit detects power supply deficiencies and responds by adjusting system operation modes or notifying the user, allowing the system to function reliably with lower-cost batteries while managing power constraints
Solution Approach 2:
The system dynamically adapts its operation based on the power supply capability detected from the battery. When high power incompatible batteries are detected, the system adjusts its power management strategy to match the limited power supply capacity, enabling cost-effective operation while maintaining system functionality
3Duration of action of moving object
If shutdown voltage is lowered for high power compatible batteries, then full battery capacity is utilized, but power management complexity increases when supporting multiple battery types
Solution Approach 1:
The system performs self-identification of battery type through automatic detection of battery characteristics. The control unit autonomously determines whether a high power compatible or incompatible battery is installed and automatically configures the appropriate power management parameters, eliminating the need for manual user configuration and reducing operational complexity despite supporting multiple battery types
Solution Approach 2:
The power management system dynamically configures itself based on detected battery type. The shutdown voltage threshold and power management parameters are automatically adjusted according to the battery characteristics, allowing the system to optimize battery usage duration while keeping the user interface simple and the management logic adaptive rather than complex
Data Source
AI summary
An electronic apparatus that can be attached with a plurality of batteries, includes a control unit configured to switch a battery for supplying power to the apparatus based on information indicating a power supply state of each of the plurality of batteries and, when the information meets a predetermined case for the plurality of batteries, perform shutdown processing of the apparatus. The control unit obtains the information in a manner that differs between a case where the plurality of batteries are of the same type and a case where the plurality of batteries are of different types.