Memory Data Burst Current Reservation for Peak Power Control
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Solution Overview
Problem
Memory devices face challenges in managing high peak power consumption during data bursts, particularly in multi-die systems, leading to inefficiencies and performance overheads due to unpredictable current demands.
Innovation Solution
Implementing a peak power management (PPM) data burst communication system with a token ring protocol and data burst communication component (DBCC) to dynamically manage current reserves based on actual data transfer speeds, using a detector to adjust current consumption values and a PPM component to arbitrate power distribution among dies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If peak power management is implemented in multi-die memory systems, then power consumption is reduced, but device complexity increases due to additional arbitration and communication protocols
Solution Approach 1:
The memory system is divided into multiple independent dies, each with its own PPM component. This segmentation allows individual power management for each die, enabling the system to reduce overall power consumption by activating only necessary dies while distributing the complexity management across separate units.
Solution Approach 2:
A PPM component acts as an intermediary between the host system and each memory die. This intermediary handles the arbitration and communication protocols, managing power distribution by mediating between current budget constraints and data burst requirements, thus reducing complexity at the system level.
2Productivity
If current reserves are dynamically adjusted based on actual data transfer speeds, then power management efficiency is improved, but measurement precision requirements increase
Solution Approach 1:
The PPM component continuously monitors actual data transfer speeds and uses this feedback to dynamically adjust current reserves. By comparing actual performance against budget allocations and re分配ing current accordingly, the system achieves efficient power management without requiring extremely precise measurements, using practical thresholds and ranges.
Data Source
AI summary
A memory device includes a memory array and control logic, operatively coupled with the memory array, to perform operations including reserving an initial amount of current reflecting a maximum current consumption value associated with a maximum speed of a data transfer being performed with respect to the memory array, detecting a plurality of input/output cycles of the data transfer following a preamble period of the data transfer, and reserving, based on an analysis of the plurality of input/output cycles, a subsequent amount of current reflecting an actual current consumption value associated with an actual speed of the data transfer.