Integrated Circuit Load Transient Prediction and Voltage Compensation

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Solution Overview

Problem

Conventional power supply systems fail to respond quickly enough to sudden increases in load demand, leading to transient voltage drops that can cause instability or crashes in electronic devices, as they rely solely on feedback loops that may not react in time to meet instantaneous power requirements.

Innovation Solution

A system that includes a processing unit in an integrated circuit system to predict impending increased loads and assert a voltage adjustment command, allowing a power regulator to proactively adjust the output voltage from a nominal level to an adjusted level before the load increase occurs, ensuring the voltage remains above the minimum operating level during transient events.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If conventional feedback loops are used to regulate voltage, then the system is simple to implement, but the response speed is too slow to prevent transient voltage drops

Engineering Contradiction:
Improveresponse speedVSAvoidsystem complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by predicting future load conditions based on monitored operating parameters and proactively adjusting the voltage before the actual load transient occurs. The processing unit analyzes current system state and predicts upcoming events that would cause voltage drops, then commands the power regulator to adjust voltage in advance, eliminating the delay inherent in conventional feedback loops that only react after voltage drops are detected.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If nominal voltage is supplied at a higher level to ensure minimum voltage during transients, then device stability is improved, but power consumption increases

Engineering Contradiction:
Improvedevice stabilityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies dynamics by transitioning from a static nominal voltage supply to a dynamic voltage adjustment system. The power regulator continuously adapts the output voltage based on real-time operating conditions and predictions, adjusting voltage upward only when and where needed to maintain stability during transients, rather than maintaining a constantly elevated voltage level. This dynamic approach reduces average power consumption while preserving device stability during critical moments.

Inventive Principle:
Principle #15Dynamics

3Use of energy by moving object

If conventional power regulation is used, then the system operates at lower power consumption, but voltage drops cause device instability or crashes

Engineering Contradiction:
Improvepower consumptionVSAvoiddevice stability
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The patent applies feedback by implementing a closed-loop system where the processing unit continuously monitors operating parameters, predicts future load conditions, and adjusts the power regulator's output accordingly. The system uses feedback from monitored parameters (such as current draw, temperature, and operational state) to make intelligent predictions and voltage adjustments, creating a responsive control mechanism that maintains stability while optimizing power consumption based on actual system needs rather than using fixed conservative voltage levels.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS9083229B1Systems and methods for load transient prediction and compensation
Publication Date: 2015.07.14 MARVELL ASIA PTE LTD
  • US9083229B1 patent drawing
  • US9083229B1 patent drawing
  • US9083229B1 patent drawing

AI summary

Systems and methods are provided for regulating power in an integrated circuit system. A system includes a processing unit configured to monitor one or more operating parameters in the integrated circuit system. Based on the one or more monitored operating parameters, the processing unit is configured to predict an occurrence of an event that will cause an increased load on the integrated circuit system and further to assert a voltage adjustment command based on the predicted event. A power regulator is coupled to a power supply. The power regulator is configured to supply a regulated output voltage at a nominal voltage level. The power regulator is further configured to receive the voltage adjustment command and to supply the output voltage at an adjusted output level responsively to the voltage adjustment command.