Time-Interleaved Voltage Modulation for Power Profile Shaping

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Solution Overview

Problem

Modern computing systems face increased power consumption and heat generation due to their enhanced functionality and multi-tasking capabilities, necessitating techniques to dynamically manage power usage and reduce heat production.

Innovation Solution

The implementation of a power management module that monitors power information from multiple devices and sends control signals to time-interleave voltage modulation among devices exceeding a power threshold, using integrated voltage regulators to adjust supply voltages and minimize peak power bursts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple devices operate simultaneously at full load to complete tasks within a short time period, then productivity is improved, but power consumption and heat generation increase significantly

Engineering Contradiction:
Improvetask completion speedVSAvoidpower consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent applies periodic action by time-interleaving voltage modulation across multiple devices, creating periodic high-power intervals that are staggered in time. This allows devices to operate at full load periodically rather than continuously, maintaining productivity while reducing peak power consumption and heat generation through temporal distribution of power demands.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent implements dynamics by dynamically adjusting voltage levels and timing of power delivery to each device based on real-time system state. The power management module continuously monitors and modifies power distribution, enabling the system to adapt power consumption to actual computational needs while maintaining task completion performance.

Inventive Principle:
Principle #15Dynamics

2Productivity

If multiple devices operate simultaneously at full load, then productivity is improved, but heat generation increases requiring excessive cooling solutions

Engineering Contradiction:
Improvetask completion speedVSAvoidheat generation
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

By implementing periodic voltage modulation with time-interleaved high-power intervals, the system distributes heat generation across different time periods rather than concentrating it simultaneously. This temporal distribution reduces peak temperature rises and allows for more efficient, less excessive cooling solutions.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent converts the potentially harmful effect of simultaneous peak power consumption into a benefit by deliberately introducing controlled, staggered high-power intervals. This transforms the heat generation problem into a manageable periodic thermal profile that can be effectively handled by cooling systems while maintaining full productivity.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Use of energy by moving object

If voltage modulation is applied to reduce peak power bursts, then power consumption is reduced, but device performance may be compromised

Engineering Contradiction:
Improvepower consumptionVSAvoiddevice performance
Core Design Contradiction:
Use of energy by moving objectVSProductivity

Solution Approach 1:

The patent maintains device performance through dynamic voltage modulation that adapts to computational requirements. By continuously monitoring system state and adjusting voltage levels in real-time, the system ensures sufficient power delivery during critical operations while reducing voltage during less demanding periods, thus maintaining performance without compromising productivity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The power management module implements feedback control by monitoring power consumption and system state, then adjusting voltage modulation parameters accordingly. This closed-loop control ensures that voltage reduction does not compromise device performance by automatically increasing power delivery when performance thresholds are approached.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS8856564B2Method and apparatus for power profile shaping using time-interleaved voltage modulation
Publication Date: 2014.10.07 INTEL CORP
  • US8856564B2 patent drawing
  • US8856564B2 patent drawing
  • US8856564B2 patent drawing

AI summary

Embodiments of an apparatus, system and method are described for dynamically time-interleaving supply voltage modulation to shape a power profile. An apparatus may comprise, for example, a power management module to monitor power information received from a plurality of devices and send a power control signal including delay information to each device having power information that exceeds a power threshold, the delay information comprising information for time-interleaving power usage among the devices having power information that exceeds the power threshold. Other embodiments are described and claimed.