公开(公告)号：US20240154514A1

公开(公告)日：2024-05-09

申请号：US17984183

申请日：2022-11-09

Applicant: Intel Corporation

Inventor： Nicolas Butzen ,  Harish Krishnamurthy ,  Jingshu Yu

IPC: H02M1/00 ,  G06F1/08 ,  G06F1/26 ,  H02M3/04

CPC classification number: H02M1/0012 ,  G06F1/08 ,  G06F1/26 ,  H02M3/04

Abstract: Embodiments herein relate to controlling one or more voltage regulators (VRs) to avoid excessive degradation when a VR increases it current output to supply a hot spot in a compute domain. In one approach, a group of VRs supply current to the domain and each VR's load is monitored to detect an increase in current. A digital controller can reduce the target voltage and/or switching frequency for a VR experiencing an increase in current to equalize the current outputs among the VRs, within a tolerance. In another aspect, a double control loop is used to control a VR. An inner control loop regulates the output of the VR relative to a target voltage and an outer control loop detects the load and adjusts the target voltage and/or switching frequency to avoid excessive degradation.