Memory Voltage Regulation via Shortest Aggregate Distance Sense Lines
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Solution Overview
Problem
Memory systems with varying memory modules and configurations face challenges in optimal voltage regulation due to non-uniform distribution of memory margin, leading to inefficiencies in power distribution and module performance.
Innovation Solution
A method involving multiple voltage sense line pairs in different locations within the memory system, where a multiplexer sequentially passes voltage signals to a feedback line, calculates memory margins, and identifies the pair providing the greatest margin to regulate voltage accordingly, ensuring optimal power distribution across memory modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single voltage sense line pair is used for voltage regulation, then the device complexity is reduced, but the memory margin is insufficient due to non-uniform voltage distribution across memory modules
Solution Approach 1:
The patent divides the voltage sensing function into multiple segments by implementing several voltage sense line pairs at different locations within the memory system. Each sense line pair monitors voltage at its specific location, allowing the system to account for non-uniform voltage distribution across different memory module positions. This segmentation enables more accurate voltage regulation and improved memory margin without requiring a complete redesign of the voltage regulation architecture.
Solution Approach 2:
The patent introduces a multiplexer as an intermediary component that selectively connects different voltage sense line pairs to the voltage regulator. The multiplexer acts as a mediator between the multiple sense lines and the single voltage regulator, allowing the system to switch between different sensing locations based on which provides the greatest memory margin. This intermediary enables complex sensing capabilities while maintaining a relatively simple regulation architecture.
2Productivity
If voltage is regulated based on a single sense line location, then the ease of operation is maintained, but the performance of memory modules at different locations is non-optimal
Solution Approach 1:
The patent implements dynamic voltage regulation by enabling the system to switch between different voltage sense line pairs based on operating conditions and memory module configurations. The multiplexer can dynamically select which sense line to use, allowing the system to adapt to different memory module positions, types, and operational states. This dynamic approach optimizes performance for various configurations while the automated selection process maintains ease of operation.
Solution Approach 2:
The patent employs feedback mechanisms where the voltage regulator monitors voltage signals from different sense line pairs and adjusts regulation based on which location provides the greatest memory margin. The system continuously evaluates voltage conditions at multiple locations and uses this feedback to optimize regulation, improving overall memory system performance while maintaining simple operation through automated control.
3Measurement precision
If multiple voltage sense line pairs are implemented, then the measurement precision of voltage distribution is improved, but the device complexity increases
Solution Approach 1:
The patent segments the voltage measurement function across multiple sense line pairs positioned at different locations within the memory system. Each sense line pair provides localized voltage measurement, and the combination of these segmented measurements gives a comprehensive view of voltage distribution. This segmentation approach improves measurement precision by capturing voltage variations at different positions without requiring a single complex measurement system.
Solution Approach 2:
The patent makes the voltage regulation system multi-functional by enabling a single voltage regulator to serve multiple sensing locations through the multiplexer. The same regulator can sequentially or selectively monitor voltage at different positions, making the system universal in its sensing capability. This multi-functionality allows precise voltage measurement across multiple locations while avoiding the complexity of having separate regulators for each position.
Data Source
AI summary
A method includes regulating voltage to a memory system responsive to a voltage signal received at a voltage feedback line, wherein the memory system includes a plurality of voltage sense line pairs in different locations within the memory system. The method further includes identifying a location of each of a plurality of installed memory modules present in the memory system. Still further, the method includes identifying a voltage sense line pair that provides a shortest aggregate distance to each of the installed memory modules, and then regulating voltage to the memory system responsive to the identified voltage sense line pair.