Capacitive Voltage Divider for Multi-Voltage Memory Subsystems
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Solution Overview
Problem
Conventional capacitive voltage dividers (CVDs) are limited in the number of output rails they can utilize to supply voltage to multiple memory components in memory sub-systems, which restricts their ability to accommodate varying voltage requirements of different memory components simultaneously.
Innovation Solution
The implementation of multiple groups of capacitors connected to separate output rails within the CVD, allowing for the output of distinct supply voltages to multiple memory components based on their specific parameters, with control logic configuring the capacitors to reduce the primary supply voltage into modified supply voltages compatible with each component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional capacitive voltage dividers are used with limited output rails, then the device complexity is reduced, but the adaptability to accommodate varying voltage requirements of multiple memory components simultaneously is compromised
Solution Approach 1:
The voltage divider is segmented into multiple independent output rails, each capable of providing different voltage levels to different memory components. This segmentation allows the system to simultaneously accommodate multiple voltage requirements without requiring a completely redesigned power distribution architecture.
Solution Approach 2:
The capacitive voltage divider employs dynamic switching mechanisms that allow the output rails to be selectively activated or deactivated based on the operational status of memory components. This dynamic capability enables the system to adapt to varying voltage requirements in real-time while maintaining a manageable physical structure.
2Adaptability or versatility
If multiple groups of capacitors are added to increase the number of output rails, then the adaptability to different voltage requirements improves, but the device complexity increases
Solution Approach 1:
Multiple capacitor groups are designed to serve multiple functions through shared control logic and unified architectural patterns. Each capacitor group can be configured to support different voltage levels and can be dynamically allocated to different output rails based on system needs, reducing the overall complexity compared to dedicated circuits for each function.
Solution Approach 2:
The system utilizes parameter changes in capacitor configurations (such as switching between different capacitor combinations or adjusting capacitance values) to achieve different voltage output levels. This allows a limited number of capacitor groups to provide multiple voltage rails by changing their operational parameters rather than requiring separate fixed circuits for each voltage level.
3Reliability
If voltages are dynamically adjusted based on component status, then the reliability and compatibility with different memory components improves, but the control complexity increases
Solution Approach 1:
The control logic incorporates feedback mechanisms that monitor the operational status of memory components and automatically adjust the voltage levels provided by the capacitive voltage divider. This feedback-driven approach ensures reliable voltage matching and prevents damage without requiring complex manual configuration, as the system self-adjusts based on real-time component conditions.
Solution Approach 2:
The capacitive voltage divider system is designed to self-regulate and self-configure based on the detected status of connected memory components. The control logic automatically selects appropriate voltage rails and adjusts capacitor configurations without external intervention, reducing the operational complexity while maintaining high reliability and compatibility across different memory component types.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables simultaneous and efficient voltage supply to multiple memory components, ensuring compatibility and reducing the risk of damage by dynamically adjusting voltages based on the status of use and parameters of each component, thereby enhancing the operational reliability of memory sub-systems.
Implementation Method 1
capacitive voltage divider (CVD) configured to reduce, based on a status of use of the plurality of memory components, a primary supply voltage to produce a modified supply voltage
Data Source
AI summary
A memory sub-system includes a plurality of memory components where at least two of the memory components are configured to operate at different supply voltages. A capacitive voltage divider (CVD) configured to, responsive to a status of use of each of the memory components, select between a plurality of connections of a plurality of capacitors to reduce an input voltage of the memory sub-system. The plurality of connections is configured to provide different voltage magnitudes that correspond to the different supply voltages, and the CVD is further configured to output the different supply voltages to enable the use of each of the memory components.