Dual-Battery Power Architecture for Memory Retention in Electronics
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Solution Overview
Problem
Mobile electronic devices face challenges in maintaining stable power supply and preventing data loss due to the potential separation or discharge of external batteries, which can lead to sudden power-offs and data loss.
Innovation Solution
The implementation of an electronic system with both internal and external batteries, where the internal battery supplies power to the memory and critical modules, and the external battery powers other function modules, allowing the system to switch to a low-power mode if the external battery is disconnected or discharged, ensuring continuous operation and data integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If an external battery is detachably attached to an electronic device, then the battery can be easily replaced, but the device may experience sudden power-off when the external battery unintentionally separates or is subjected to external shock
Solution Approach 1:
The power supply system is divided into two independent parts: an internal battery integrated into the device and an external battery that can be detached. The internal battery is specifically assigned to power the memory module, while the external battery powers other functional modules. This segmentation allows the external battery to be easily replaced while the internal battery ensures continuous operation of critical components, resolving the contradiction between ease of replacement and power supply stability.
2Ease of repair
If an external battery is detachably attached to an electronic device, then the battery can be easily replaced, but data loss may occur when the external battery separates or the device is discharged
Solution Approach 1:
The internal battery is pre-configured to provide backup power specifically to the memory module before any power loss event occurs. This preliminary power supply arrangement ensures that data in the memory is continuously protected and can be maintained even when the external battery is detached or the device experiences discharge, preventing data loss while maintaining the ease of external battery replacement.
3Reliability
If the internal battery supplies power to all modules, then power supply stability is improved, but power consumption increases and battery capacity is reduced
Solution Approach 1:
Different power supply configurations are applied to different modules based on their specific requirements. The internal battery provides power to the memory module which requires continuous stable power for data retention, while the external battery supplies power to other functional modules that can tolerate power variations. This localized power supply approach ensures reliability for critical components while optimizing overall power consumption and extending battery capacity.
Data Source
AI summary
An electronic system electronic device includes: an internal battery, an external battery, a memory and a plurality of function modules. The internal battery is configured to generate a first power signal. The external battery is configured to be separated from the electronic device, and to generate a second power signal. The memory is configured to operate based on the first power signal. The plurality of function modules are configured to operate based on the second power signal.