Wireless Charging Converter Mode Switching for Adapter Power Stability
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Solution Overview
Problem
Existing wireless charging methods face issues with low intelligence and poor stability, leading to charging interruptions and power waste due to inadequate adapter power ratings, as they operate in fixed modes without adapting to changing charging demands.
Innovation Solution
A wireless charging method that detects charging parameters such as input and output currents and voltages to dynamically switch between Constant Voltage (CV) and Constant Power (CP) modes, allowing the DC/DC converter to operate in various power-drawing modes, ensuring stable charging by adjusting power control between the adapter and the wireless charging apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rated power of the adapter is increased to prevent charging interruptions, then charging stability is improved, but power waste during the charging process increases
Solution Approach 1:
The patent applies dynamics by enabling the converter to dynamically switch between different power-drawing modes (CV and CP) based on real-time charging parameters. This dynamic adaptation allows the system to use a lower-rated adapter while maintaining charging stability, as the converter adjusts its power consumption to match the adapter's actual capacity rather than requiring excessive headroom.
Solution Approach 2:
The patent changes operating parameters by monitoring charging parameters (input current, input voltage, output current, output voltage) and switching between CV and CP modes based on these parameter changes. This allows optimal utilization of the adapter's rated power, preventing both charging interruptions and power waste.
2Loss of energy
If the rated power of the adapter is not increased, then power waste is reduced, but charging interruptions occur when charging power is increased
Solution Approach 1:
The patent implements feedback by continuously detecting charging parameters and using this information to determine the appropriate power-drawing mode. The converter adjusts its operation based on feedback from the charging state, ensuring stable charging without requiring an oversized adapter. This feedback mechanism prevents charging interruptions while optimizing power usage.
Solution Approach 2:
The system dynamically adapts its power-drawing behavior based on real-time conditions, switching between CV and CP modes to maintain stable charging with a properly sized adapter, avoiding both power waste and charging interruptions.
3Device complexity
If fixed operating modes are used in wireless charging, then device complexity is reduced, but adaptability to changing charging demands decreases
Solution Approach 1:
The patent makes the converter dynamic by enabling it to switch between CV and CP power-drawing modes based on detected charging parameters. This dynamic capability allows the system to adapt to changing charging demands while maintaining relatively simple control logic, resolving the contradiction between complexity and adaptability.
Solution Approach 2:
The system changes its operating parameters by switching between different power-drawing modes based on detected charging conditions. This allows the converter to adapt to varying charging demands without requiring complex control mechanisms, achieving a balance between simplicity and versatility.
Data Source
AI summary
The present application provides a wireless charging method, a wireless charging apparatus, and a storage medium. The method includes: detecting, in response to performing wireless charging, a charging parameter of a converter, wherein the charging parameter includes at least one parameter of an input current, an input voltage, an output current and an output voltage; determining a target operation mode according to the charging parameter, wherein the target operation mode is configured to determine a power-drawing mode of the converter; and controlling the converter to switch to the target operation mode, and charging a to-be-charged device.