Memory Power Rail Layout for Lower Voltage-Loss Control
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Solution Overview
Problem
Existing memory systems experience unnecessary energy loss and increased power consumption due to inefficient power rail designs, particularly in supplying power to memory devices and controllers, leading to higher energy waste and environmental concerns.
Innovation Solution
Implementing a three-power rail design where each rail supplies different voltage levels to memory devices and controllers, minimizing voltage differences to reduce energy loss and consumption, specifically using a third power rail with a voltage level equal to or within a threshold value of 0.75 volts for controller cores.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a traditional power rail design with fewer voltage levels is used, then the device complexity is reduced, but energy loss increases due to larger voltage differences
Solution Approach 1:
The power rail system is segmented into multiple independent voltage sources (first voltage source, second voltage source, third voltage source) each providing different voltage levels to different components. This segmentation allows optimization of voltage differences for each component pair, reducing overall energy loss while maintaining manageable system complexity through modular architecture.
Solution Approach 2:
Different voltage levels are assigned to different components based on their specific power requirements. The first voltage source provides a first voltage level to first components, the second voltage source provides a second voltage level to second components, and the third voltage source provides a third voltage level to third components. This local optimization of voltage allocation minimizes energy loss in each component while maintaining overall system efficiency.
2Loss of energy
If voltage levels are optimized to minimize differences, then energy loss is reduced, but the power rail design complexity increases
Solution Approach 1:
The power rail design incorporates dynamic voltage regulation capabilities where voltage levels can be adjusted based on operational requirements. The voltage sources are configured to provide optimal voltage differences during different operational states, allowing the system to adaptively minimize energy loss while maintaining design manageability through controlled dynamics.
Solution Approach 2:
The system utilizes multiple voltage levels (first voltage level, second voltage level, third voltage level) as adjustable parameters to optimize power delivery. By changing voltage parameters to match specific component requirements and minimize voltage differences, the system reduces energy loss while the structured parameter management keeps design complexity可控.
3Use of energy by stationary object
If multiple voltage sources are used to reduce power consumption, then overall power consumption decreases, but the manufacturing complexity increases
Solution Approach 1:
The voltage sources are designed with multi-functionality to serve multiple purposes. Each voltage source not only provides power to specific components but also contributes to overall power optimization across the system. This universal design approach reduces the need for dedicated components for each function, thereby reducing manufacturing complexity while maintaining low power consumption.
Solution Approach 2:
The power rail design merges multiple voltage sources into a unified system architecture where the first, second, and third voltage sources work together to reduce overall power consumption. By combining these sources in a coordinated manner with shared control and distribution infrastructure, the system achieves low power consumption while managing manufacturing complexity through integration.
Data Source
AI summary
Methods, systems, and devices for power rail design for a memory system are described. A host system may power a memory system using a first power rail, a second power rail, and a third power rail. The first power rail may be coupled with the memory device and configured to power one or more first components of the memory device at a first voltage level. The second power rail may be coupled with the memory device and configured to power one or more second components of the memory device at a second voltage level. The third power rail may be coupled with the memory system controller and configured to power one or more third components of the memory system controller at a third voltage level.