Wireless Power Transmitter Multi-Device Impedance Management

The patent segments the power transmission process into distinct phases: detection phase (transmitting detection power and measuring impedance), search phase (receiving search signals within preset time), and approval phase (determining impedance within acceptable range and transmitting approval messages). This segmentation allows the system to manage multiple receiving apparatuses systematically by handling each apparatus through discrete, manageable steps rather than attempting simultaneous complex coordination.

The patent implements preliminary actions before full power transmission begins. The power transmitting apparatus first transmits detection power to measure impedance changes, then receives search signals from receiving apparatuses, and only after verifying impedance is within acceptable range does it transmit approval messages. This preliminary verification process allows the system to assess multiple receiving apparatuses' conditions before committing resources, enabling effective management of multiple devices without overwhelming complexity.

The patent employs feedback mechanisms where the power transmitting apparatus transmits detection power, measures impedance changes, and receives search signals from receiving apparatuses. Based on this feedback, the system determines whether impedance is within acceptable ranges and selectively transmits approval messages. This feedback loop allows the system to monitor individual apparatus conditions while managing multiple devices, ensuring reliable power transmission by continuously adjusting based on real-time status information from each receiving apparatus.

The patent implements dynamic power management where the transmitting apparatus can adjust its behavior based on real-time conditions. The system transmits detection power, measures impedance changes, receives search signals within preset time intervals, and dynamically determines which apparatuses receive approval messages based on impedance being within acceptable ranges. This dynamic approach enables the system to optimize power distribution across multiple apparatuses while maintaining reliability for each individual connection.

The patent creates a universal power transmission protocol that handles both simple two-device scenarios and complex multi-device scenarios through the same framework. The detection phase, search phase, and approval phase work for single apparatuses and multiple apparatuses alike. The system transmits detection power, measures impedance changes, receives search signals, and determines approval based on impedance ranges - this universal approach maintains simplicity while enabling multi-device operation, as the same protocol steps apply regardless of the number of receiving apparatuses.

The patent segments the power transmission protocol into distinct, sequential phases that maintain simplicity while enabling multi-device support. The detection phase (transmitting detection power and measuring impedance), search phase (receiving search signals within preset time), and approval phase (determining impedance within acceptable range) provide a structured, easy-to-follow protocol that works for any number of receiving apparatuses. This segmentation transforms a potentially complex multi-device protocol into manageable, repeatable steps that preserve operational simplicity.