Access Point FEM Short Detection Circuit for Power Isolation

The patent divides the common power source into separate isolated power sources for each FEM. Each FEM receives power from its own dedicated power source, preventing a short in one FEM from affecting others. This segmentation resolves the contradiction by maintaining reliability while the patent keeps the design simple and cost-effective through individual isolation rather than complex shared infrastructure.

The patent introduces isolation circuits as intermediary components between the power source and each FEM. These isolation circuits act as mediators that prevent direct coupling between FEMs, so when one FEM shorts to ground, the isolation circuit blocks the fault from propagating to other FEMs. This allows the system to maintain high reliability while avoiding the need for completely separate power infrastructure.

The patent implements segmentation by providing each FEM with its own isolated power source and detection circuit. This divides the monitoring function into separate segments, where each FEM's power status is independently monitored. The complexity is distributed across simple individual units rather than concentrated in a complex centralized system, achieving reliability through modular simplicity.

Each FEM incorporates its own short-to-ground detection capability and isolation control, making the system self-monitoring and self-protecting. When a FEM detects a short condition, it automatically triggers isolation of its own power source without requiring complex external monitoring systems. This self-service approach improves reliability while minimizing overall system complexity.