Charging Cable Controller for Type Identification and Safe Power Delivery

The patent applies preliminary action by having the external device perform cable type identification before initiating the charging process. The controller sends identification signals through the charging cable to detect cable parameters (such as resistance or conductor material), and only after successful identification and verification does the device proceed to charge at appropriate currents. This prevents mismatched charging scenarios where high-current fast charging would damage incompatible cables.

The patent implements dynamics by making the charging protocol adaptive rather than static. The external device dynamically adjusts charging parameters based on real-time cable identification results. Different cable types (e.g., copper vs. aluminum conductors, different gauge sizes) trigger different charging profiles, allowing the system to optimize charging performance for each cable's specific electrical characteristics while maintaining broad compatibility through the identification mechanism.

The patent applies self-service by designing an identification mechanism where the charging cable itself provides identification information passively through its electrical characteristics. The controller sends simple test signals through the cable, and the cable's inherent properties (resistance, voltage drop, or dedicated identification pins) automatically reveal its type without requiring active response from the cable or complex bidirectional communication. This reduces controller complexity compared to systems requiring active handshaking or multiple communication protocols.