Dynamic Voltage Regulation for Processor State Transitions

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Solution Overview

Problem

Existing voltage regulation methods in electronics lead to increased power consumption and heat production due to maintaining a constant high voltage level to account for worst-case scenarios, resulting in reduced processing speed and shortened battery life, while also risking circuit damage from voltage droops and overshoots.

Innovation Solution

A method and apparatus that dynamically adjust the load line voltage by determining the specific voltage requirements of processing blocks in real-time, allowing for voltage changes to match current demand, thereby reducing unnecessary power consumption and heat production without compromising stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If voltage is maintained at a constant high level to handle worst-case transients, then circuit reliability is improved, but power consumption increases

Engineering Contradiction:
Improvecircuit reliabilityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The voltage regulator dynamically adjusts the load line voltage based on real-time processor state information. When the processor transitions between idle and active states, the regulator modifies the voltage level accordingly, rather than maintaining a static high voltage. This dynamic adjustment allows the system to maintain reliability by providing adequate voltage during transients while reducing power consumption during steady-state operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the voltage parameter from a fixed high level to a variable level that adapts to processor demands. By receiving processor state information and calculating appropriate voltage adjustments, the system modifies the voltage parameter to match actual load requirements, thereby reducing unnecessary power consumption while maintaining circuit reliability during state transitions.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If voltage is maintained at a constant high level to handle worst-case transients, then circuit reliability is improved, but heat production increases

Engineering Contradiction:
Improvecircuit reliabilityVSAvoidheat production
Core Design Contradiction:
ReliabilityVSTemperature

Solution Approach 1:

The voltage regulator dynamically adjusts the load line voltage based on real-time processor state information. When the processor transitions between idle and active states, the regulator modifies the voltage level accordingly, rather than maintaining a static high voltage. This dynamic adjustment allows the system to maintain reliability by providing adequate voltage during transients while reducing power consumption during steady-state operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the voltage parameter from a fixed high level to a variable level that adapts to processor demands. By receiving processor state information and calculating appropriate voltage adjustments, the system modifies the voltage parameter to match actual load requirements, thereby reducing unnecessary power consumption and heat generation during idle periods.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If voltage is maintained at a constant high level to handle worst-case transients, then protection against voltage droop is improved, but processing speed decreases

Engineering Contradiction:
Improveprotection against voltage droopVSAvoidprocessing speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The voltage regulator dynamically adjusts the load line voltage based on real-time processor state information. When the processor transitions between idle and active states, the regulator modifies the voltage level accordingly, rather than maintaining a static high voltage. This dynamic adjustment allows the system to maintain reliability by providing adequate voltage during transients while reducing power consumption during steady-state operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs preliminary voltage adjustment in response to processor state transitions. By receiving advance notice of processor state changes and proactively adjusting the voltage before the actual load change occurs, the system prevents voltage droop and overshoot while allowing the processor to operate at optimal speeds without being constrained by excessive protection margins.

Inventive Principle:
Principle #10Preliminary action

4Stability of the object's composition

If voltage is maintained at a constant high level to handle worst-case transients, then circuit stability is improved, but battery life decreases

Engineering Contradiction:
Improvecircuit stabilityVSAvoidbattery life
Core Design Contradiction:
Stability of the object's compositionVSDuration of action of moving object

Solution Approach 1:

The voltage regulator dynamically adjusts the load line voltage based on real-time processor state information. When the processor transitions between idle and active states, the regulator modifies the voltage level accordingly, rather than maintaining a static high voltage. This dynamic adjustment allows the system to maintain stability by providing adequate voltage during transients while reducing power consumption during steady-state operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the voltage parameter from a fixed high level to a variable level that adapts to processor demands. By receiving processor state information and calculating appropriate voltage adjustments, the system modifies the voltage parameter to match actual load requirements, thereby reducing unnecessary power consumption and extending battery life during idle periods while maintaining stability during active operation.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9213381B2Voltage regulator dynamically determining whether requested power transition can be supported
Publication Date: 2015.12.15 ADVANCED MICRO DEVICES INC
  • US9213381B2 patent drawing
  • US9213381B2 patent drawing
  • US9213381B2 patent drawing

AI summary

A method of controlling voltage in a circuit is provided. Within the circuit, a block of an electrical component provides an indication that it desires to switch states (such as from off to on, on to off, or from one speed to another). The change in states requires a different current draw by the electrical component block. The indication is received by an electrical component that controls the voltage of the circuit. The electrical component that controls the voltage then issues a signal granting permission for the electrical component block to switch states. This permission signal is received by the electrical component and the electrical component block changes state.