Multi-Mode Power Conversion Circuit for Adaptive Battery Charging
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Solution Overview
Problem
Existing battery charging systems support only one voltage mode, which can lead to inefficient or ineffective charging and even damage to batteries if inappropriate voltage or current levels are supplied, as different batteries require varying quantities of electricity, voltages, and currents.
Innovation Solution
A power conversion circuit and charging apparatus that includes multiple switch elements and energy storage elements, allowing for various charging modes to be supported by controlling the switch elements and energy storage elements to adapt to different battery requirements, thereby optimizing the charging process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single voltage mode is used for battery charging, then the charging system is simple, but the charging efficiency is low and may damage batteries with different specifications
Solution Approach 1:
The charging circuit is segmented into multiple independent paths with different switch elements (first through sixth switch elements), each path capable of operating in different voltage modes. This allows the system to support multiple charging modes while maintaining circuit simplicity through modular segmentation.
Solution Approach 2:
The circuit employs dynamic switching between different voltage modes by controlling the state of switch elements based on battery requirements. The charging apparatus can dynamically adjust between first voltage mode, second voltage mode, and third voltage mode to adapt to different battery specifications, transforming a static single-mode system into a dynamic multi-mode system.
2Productivity
If high voltage or current is supplied to a battery, then charging speed increases, but the battery may be damaged or explode
Solution Approach 1:
The system dynamically adjusts voltage and current levels based on real-time battery state detection. By switching between different voltage modes (first, second, and third modes) and controlling switch elements accordingly, the system optimizes charging rate while preventing excessive voltage or current that could damage the battery.
Solution Approach 2:
The charging apparatus incorporates detection circuits that monitor battery state and provide feedback to control the switching elements. This feedback mechanism ensures that high voltage or current is only applied when appropriate, adjusting charging parameters in real-time to maintain both high charging rates and battery safety.
3Reliability
If low voltage or current is supplied to a battery, then battery safety is maintained, but charging efficiency decreases
Solution Approach 1:
The system transitions from static low-voltage charging to dynamic multi-mode charging. By detecting battery specifications and state, the system dynamically selects appropriate voltage modes (first, second, or third mode) and controls switch elements to deliver optimal voltage and current levels, thereby improving charging efficiency while maintaining safety.
Solution Approach 2:
The charging apparatus changes operating parameters (voltage and current levels) based on battery requirements. By implementing multiple voltage modes with different parameter settings and using switch elements to select appropriate modes, the system adapts parameters to maximize charging efficiency without compromising battery safety.
Data Source
AI summary
A power conversion circuit includes a first end of a first switch element coupled to an input power supply; a second end of the first switch element coupled to a first end of a first energy storage element, and a first end of a second switch element; a second end of the first energy storage element coupled to ground through a third switch element, and a first end of a fourth switch element; a second end of the second switch element coupled and connected to a battery; a first end of a second energy storage element coupled to two ends of the first energy storage element through a fifth switch element and a sixth switch element; a second end of the second energy storage element coupled to the battery; and a second end of the fourth switch element coupled to the battery.