Charger IC Dynamic Battery Switching for Series Parallel Optimization
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Solution Overview
Problem
Current battery technology and charging methods in portable electronic devices, such as mobile phones, face limitations in power storage capacity and efficiency, especially with the rise of 5G technology, leading to suboptimal operating performance and battery life.
Innovation Solution
A charger integrated circuit (IC) that includes a direct charger and a switching charger, along with a battery switch comprising transistors, which connects multiple batteries in series or parallel based on input voltage and voltage differences to optimize charging and balancing, ensuring efficient power distribution and extended battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple batteries are connected in series to increase voltage output, then power delivery capability is improved, but charging efficiency and battery balancing deteriorate
Solution Approach 1:
The patent implements dynamic switching between series and parallel battery configurations based on operational requirements. The controller selectively connects batteries in series during power delivery mode to maximize voltage output, and switches to parallel configuration during charging mode to optimize charging efficiency and facilitate voltage balancing across all battery cells.
2Productivity
If multiple batteries are connected in parallel to improve charging efficiency, then charging speed is improved, but voltage output and power delivery capability deteriorate
Solution Approach 1:
The system dynamically reconfigures battery connections based on the operational mode. In charging mode, batteries are connected in parallel to enable higher charging currents and faster charging speeds. In power delivery mode, the configuration switches to series to maximize voltage output and power delivery capability to external devices.
3Device complexity
If fixed battery configuration is used to simplify circuit design, then device complexity is reduced, but adaptability to different charging modes deteriorates
Solution Approach 1:
The patent employs dynamic switching mechanisms with control circuits that automatically adjust battery configurations based on detected charging modes and power delivery requirements. This dynamic adaptability allows the system to optimize performance for different operational scenarios without requiring complex manual intervention or multiple fixed configurations.
Solution Approach 2:
The battery management system is designed to perform multiple functions through a single reconfigurable architecture. The same switching circuitry and controller that manage charging operations also enable power delivery functions, making the system universally adaptable to different operational modes while avoiding the need for separate dedicated circuits for each function.
Data Source
AI summary
A charger integrated circuit for charging a battery device including a first battery and a second battery includes; a first charger configured to generate a first charging current from an input voltage when the input voltage is received from an input voltage terminal, and a battery switch configured to provide the first charging current to the battery device, the battery switch comprising a plurality of transistors for connecting the first battery and the second battery in series or in parallel based on the input voltage, a first both-end voltage of the first battery and a second both-end voltage of the second battery.