Patent · US Active

Predictive on-chip voltage simulation to detect near-future under voltage conditions

US11112846B2 · kind B2 · utility

11Cited by

5References

15Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Thomas Strach · Wildberg, DE
Preetham M. Lobo · Bengaluru, IN
Tobias Webel · Eppelheim, DE

Key dates

Filing date	Dec 19, 2018
Grant date	Sep 7, 2021
Priority date	—
Expiry date	Sep 4, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06F30/3312
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Embodiments of the present disclosure relate to detecting undervoltage conditions at a subcircuit. A power supply current of a first subcircuit is determined over a first number of previous clock cycles. A cross current flowing between the first subcircuit and a second subcircuit is determined over the first number of previous clock cycles. An estimated momentary supply voltage present at the first subcircuit is then determined based on the power supply current of the first subcircuit over the first number of previous clock cycles and the cross current flowing between the first subcircuit and the second subcircuit over the first number of previous clock cycles.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.