Memory Device Peak Power Override Using Low-Current Breakpoints
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Solution Overview
Problem
Existing peak power management systems in memory sub-systems face challenges in executing priority operations without causing performance penalties by suspending or pausing non-priority operations, leading to memory device overhead and reduced quality of service.
Innovation Solution
Implementing peak power management priority override allows memory devices to execute priority operations by reconfiguring high current breakpoints as low current breakpoints, enabling immediate execution without waiting for sufficient current budget, and managing current consumption across devices using a credit-based system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If peak power management suspends or pauses non-priority operations to execute priority operations, then priority operations can be executed, but performance penalties and memory device overhead occur
Solution Approach 1:
The patent changes the parameter classification of breakpoints from fixed high current to low current thresholds. By reconfiguring breakpoints as low current thresholds, the system allows priority operations to execute immediately without suspending non-priority operations, thus maintaining overall system performance while ensuring priority operation execution.
2Use of energy by moving object
If priority operations are executed by suspending non-priority operations, then current budget is managed, but memory device overhead increases
Solution Approach 1:
The patent modifies the current threshold parameters from high current breakpoints to low current breakpoints. This parameter change enables the system to track and manage current consumption continuously without requiring suspension of operations, thereby reducing memory device overhead while maintaining current budget management.
3Use of energy by moving object
If high current breakpoints are used to control operation execution, then current budget is enforced, but priority operations experience delays
Solution Approach 1:
The patent changes the current threshold parameter from high current breakpoint to low current breakpoint. This enables the system to enforce current budget constraints while allowing priority operations to proceed without delays, as the low current threshold does not block priority operation execution even when current consumption is elevated.
4Reliability
If non-priority operations are paused to free current budget, then priority operations can execute, but quality of service deteriorates
Solution Approach 1:
The patent reconfigures the current threshold parameter from high current to low current breakpoint. This allows the system to maintain continuous operation of both priority and non-priority operations without pausing, thereby preserving quality of service while ensuring priority operations execute without delays.
Data Source
AI summary
A memory device includes memory dies, each memory die including a memory array and control logic, operatively coupled with the memory array, to perform peak power management (PPM) operations. The PPM operations include receiving a request to perform an operation, determining whether to initiate a PPM priority override procedure, and in response to determining to initiate the PPM priority override procedure, performing the PPM priority override procedure to execute the operation. Performing the PPM priority override procedure includes reconfiguring each high current breakpoints as a respective low current breakpoint to execute the operation.