Wireless Charging Power Control for Cover Material and Heat Limits

The patent applies dynamics by transitioning from a static temperature range to a dynamic temperature range that adapts based on the detected material properties of the device cover and charging surface. The system determines material types (e.g., leather, plastic, metal) and adjusts the maximum temperature threshold accordingly, allowing the charging process to maintain optimal temperatures for each specific material combination while ensuring charging compatibility.

The patent implements parameter changes by modifying the temperature parameter based on material detection. Different material combinations have different thermal properties and heat resistance thresholds. The system changes the temperature parameter dynamically according to the detected materials, thereby preventing excessive heating damage while maintaining effective wireless charging across different device and surface configurations.

The patent replaces complex mechanical or contact-based material detection methods with optical sensing technology. The optical sensor non-contactively detects material properties by analyzing reflected or emitted light characteristics, thereby determining the type of device cover and charging surface materials without requiring physical interaction. This substitution maintains safety improvement while minimizing the increase in device complexity.

The patent introduces an intermediary optical sensing layer that mediates between the wireless charging system and the material detection task. The optical sensor acts as an intermediary component that translates material properties into detectable signals, which are then processed to determine appropriate temperature ranges. This intermediary approach enables material-based safety control without directly complicating the core wireless charging mechanism.

The patent applies preliminary action by performing material detection and determining the appropriate temperature range before the wireless charging process begins. The optical sensor detects device cover and charging surface materials in advance, and the system pre-configures the suitable temperature threshold based on the detected material combination. This preliminary setup eliminates the need for continuous monitoring during charging, thereby preventing overheating while minimizing additional energy consumption.

The patent implements skipping by performing rapid material detection and temperature range determination in a brief preliminary phase before charging starts. The optical sensing and material identification are completed quickly in advance, allowing the system to skip continuous monitoring during the charging process itself. This approach ensures overheating prevention through upfront material awareness while avoiding sustained energy expenditure on monitoring.