Voltage Regulator Current Throttling for Non-Core Processor Regions

The patent implements a feedback mechanism where a monitor circuit continuously tracks the current output of the voltage regulator and compares it against a threshold value. When the current exceeds the threshold, the system asserts a throttle signal to reduce the workload on the VR, preventing shutdown and degradation. This closed-loop feedback enables safe downsizing of VR components while maintaining reliability.

The patent applies preliminary action by proactively monitoring VR current output and asserting throttle signals before the VR reaches its maximum current capacity or shutdown threshold. The monitor circuit continuously tracks current levels and preemptively reduces workload when approaching dangerous thresholds, preventing shutdown events before they occur. This allows the VR to be sized below the specified maximum current requirement while maintaining reliability through preventive throttling.

The patent implements self-service by integrating the monitor circuit and throttle control directly into the processor's non-core region, enabling the region to autonomously manage its own power consumption. The non-core region continuously monitors its own current draw and automatically asserts throttle signals when exceeding VR supply capability, eliminating the need for external protection mechanisms. This self-regulating approach extends VR lifetime without adding significant device complexity.