Dual Battery Discharge Control via Voltage-Managed Switching
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Solution Overview
Problem
Conventional electronic devices with two battery units, where one is primary and the other is secondary, face inefficiencies in charging and discharging due to differences in voltage, leading to premature discharge of the primary battery and increased device size due to larger battery capacity requirements.
Innovation Solution
An electronic device with two battery units, each with equal capacity, utilizing voltage-controlled and selective conducting circuits to manage discharging and charging, ensuring that at least one battery is always discharged through voltage-controlled paths, maintaining system stability and allowing for parallel connection to extend battery life and reduce device volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the primary battery (larger series number, higher voltage) is discharged first according to conventional methods, then the discharging process follows standard voltage priority, but the primary battery is depleted earlier and the device cannot be downsized
Solution Approach 1:
The patent implements dynamic switching between different battery discharge paths based on real-time voltage detection. The system transitions from static voltage-priority discharge to dynamic path selection, allowing flexible adjustment of which battery discharges first based on voltage levels, thereby optimizing both duration and volume efficiency
Solution Approach 2:
The system changes the discharge parameter selection criteria from fixed voltage priority to dynamic voltage comparison. By continuously monitoring voltage parameters and adjusting discharge paths accordingly, the system achieves better balance between operation duration and device size without being constrained by conventional voltage hierarchy
2Duration of action of moving object
If two battery units with different capacities are used to extend operation duration, then flexibility of operation is enhanced, but the device size increases due to larger battery capacity requirements
Solution Approach 1:
The patent merges two battery units of equal capacity into a unified power system with intelligent path selection. Instead of using one large battery or two different-capacity batteries, the system combines two identical batteries with smart control logic that dynamically selects discharge paths, achieving extended duration while maintaining compact size
Solution Approach 2:
The voltage comparison and path selection mechanism serves multiple functions: it determines discharge priority, balances battery usage, and enables flexible operation modes. This multi-functional control system allows the same hardware configuration to adapt to different operational requirements without increasing device volume
3Reliability
If voltage-controlled conducting circuits are used to enable parallel connection of batteries, then system stability is maintained and battery life is prolonged, but circuit complexity increases
Solution Approach 1:
The patent introduces voltage comparison circuits as intermediary components that mediate between the two battery units and the load. These intermediary circuits continuously monitor voltage levels and control the switching of conducting paths, ensuring stable parallel operation while providing clear control logic that manages complexity through functional decomposition
Solution Approach 2:
The system employs self-regulating voltage-controlled conducting circuits that automatically adjust their conduction state based on voltage comparisons. The circuits serve themselves by using voltage differences as natural control signals, eliminating the need for complex external control mechanisms and reducing overall system complexity while maintaining stability
Data Source
AI summary
An electronic device includes a power transmit port, a first battery unit, a second battery unit, a first voltage-controlled conducting circuit, a first selective conducting circuit, a second voltage-controlled conducting circuit, a second selective conducting circuit and a processing unit. The first and second voltage-controlled conducting circuit connects the corresponding battery unit to the power transmit port in electric when the voltage of the corresponding battery unit is higher than the voltage of the power transmit port. The first selective conducting circuit connects the first battery unit to the power transmit port in electric according to a first turn-on signal. The second selective conducting circuit connects the second battery unit to the power transmit port in electric according to a second turn-on signal. The processing unit generates the first turn-on signal and the second turn-on signal in selective.