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Self-referenced on-die voltage droop detector

A reference voltage and reference voltage generation technology, applied in the field of electrical design, can solve problems such as voltage drop and power supply voltage drop

Active Publication Date: 2019-03-15
AMPERE COMPUTING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the PDN is designed to provide a rated operating voltage to integrated circuit components, many operating factors may cause the voltage provided by the PDN to temporarily drop below the rated operating voltage. This situation is called voltage drop
A drop in supply voltage can occur when an integrated circuit experiences a sudden increase in switching activity, which causes a transient surge in current draw that can produce a drop in supply voltage

Method used

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  • Self-referenced on-die voltage droop detector
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  • Self-referenced on-die voltage droop detector

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Embodiment Construction

[0014] The disclosure herein is described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It may be evident, however, that the various disclosed aspects can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing the present invention.

[0015] Integrated circuits, such as system-on-chip (SoC) designs or other very large-scale integration (VLSI) systems, are sometimes susceptible to dips in supply voltages supplied to circuit components via the circuit's power domains. These supply voltage dips may be caused by sudden increases in current draw of active components of the circuit (eg, during brief periods of substantial simultaneous switchin...

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Abstract

A self-referenced on-die voltage droop detector generates a reference voltage from the supply voltage of an integrated circuit's power distribution network, and compares this reference voltage to thetransient supply voltage in order to detect voltage droops. The detector responds to detected occurrences of voltage droop with low latency by virtue of being located on-die. Also, by generating the reference voltage from the integrated circuit's power domain rather than using a separate reference voltage source, the detector does not introduce noise and distortion associated with a separate powerdomain.

Description

technical field [0001] The disclosed subject matter relates generally to electrical design and, for example, to a self-referenced on-die voltage droop detector that provides on-die detection of system-level voltage droop due to transient current surges . Background technique [0002] Integrated circuits, such as system-on-chip (SoC) designs or other very large-scale integration (VLSI) systems, include multiple circuit elements or components that receive supply voltages from one or more on-chip grids or power distribution networks (PDNs). Although the PDN is designed to provide a rated operating voltage to integrated circuit components, many operating factors may cause the voltage provided by the PDN to temporarily drop below the rated operating voltage, which is called a voltage drop. A drop in supply voltage may occur when an integrated circuit experiences a sudden increase in switching activity, which causes a transient surge in current draw that may generate a drop in su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/165
CPCG01R31/2884G01R31/3004G06F1/305G01R31/2879G01R31/2856G01R19/16552G01R19/16504G01R19/0084G01R17/02
Inventor 种燕卢卡·拉弗齐阿尔佛雷德·杨哈米德·帕尔托维
Owner AMPERE COMPUTING LLC