PoE Power Sourcing Equipment Noise Detector for Ripple Monitoring

The patent implements a feedback mechanism where the PSE continuously monitors the electrical characteristics (impedance, current, voltage) of connected PDs and compares them against baseline values. When deviations exceed thresholds, the system generates alerts or modifies power delivery, creating a closed-loop monitoring system that enables ongoing performance assessment without requiring additional power delivery infrastructure.

The patent replaces physical inspection or manual testing methods with electrical measurement-based monitoring. By substituting mechanical or human-based performance verification with automated electrical characteristic analysis, the system achieves continuous, non-intrusive monitoring of PD performance degradation while maintaining standard PoE power delivery capabilities.

The patent introduces an intermediary monitoring function that sits between the PSE's power delivery mechanism and the PD. This intermediary layer analyzes electrical characteristics to detect aging-related degradation before it manifests as harmful EMI, acting as an early warning system that enables preventive action without requiring direct intervention in the power delivery path or adding significant system complexity.

The patent implements preliminary detection of performance degradation by continuously monitoring electrical characteristics and comparing them against established baselines. By detecting aging effects early—before they cause harmful EMI or device failure—the system enables preventive maintenance or power modification actions that avoid the harmful outcomes associated with undetected component degradation.

The patent implements partial monitoring by focusing measurements on specific electrical characteristics (impedance, current, voltage) that are most indicative of aging-related degradation. Rather than continuously monitoring all possible parameters, the system selectively measures key indicators, reducing energy consumption while maintaining effective detection capability for performance degradation and EMI risks.

The patent enables the monitoring function to operate using the existing PoE power infrastructure and electrical signals already present in the connection between PSE and PD. By leveraging the power delivery mechanism itself as the monitoring medium, the system achieves performance monitoring with minimal additional energy consumption, as the measurement process utilizes the same electrical path used for power delivery.