Invention Grant
- Patent Title: Dynamic timing for shutdown including asynchronous dynamic random access memory refresh (ADR) due to AC undervoltage
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Application No.: US17316352Application Date: 2021-05-10
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Publication No.: US11977900B2Publication Date: 2024-05-07
- Inventor: Jared Johnson , Robert Mascia
- Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
- Applicant Address: US TX Houston
- Assignee: Hewlett Packard Enterprise Development LP
- Current Assignee: Hewlett Packard Enterprise Development LP
- Current Assignee Address: US TX Spring
- Agency: Nolte Lackenbach Siegel
- Main IPC: G06F9/4401
- IPC: G06F9/4401 ; G01R19/165 ; G06F1/28 ; G06F11/30 ; G06F11/34 ; G11C11/406 ; H02H3/247

Abstract:
A technique for managing undervoltage in a compute system is disclosed. The technique includes a method that further includes: detecting an AC undervoltage condition in the compute system; and upon detecting the AC undervoltage condition: dynamically determining a holdup time as a function of the present load; determining a monitoring period as a function of the dynamically determined holdup time; waiting for the determined monitoring period to expire; and upon expiration of the determined monitoring period, perform a shutdown process if the AC undervoltage condition persists.
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