Onboard Energy Storage for SSD Power Delivery Circuitry
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Solution Overview
Problem
Solid state drives (SSDs) experience increased latency due to power demands exceeding the capacity of external power supplies, leading to reduced performance and response times.
Innovation Solution
Incorporating onboard energy storage within the memory device's power delivery circuitry to store excess power during idle periods and release it during peak demand, allowing the memory device to utilize more power than the external supply can provide without overloading it, thereby reducing latency and serving as a power backup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the external power supply capacity is increased to meet peak power demands of the solid state drive, then the power supply can provide sufficient power during high demand periods, but the cost and size of the power supply system increases
Solution Approach 1:
The power delivery circuitry performs preliminary action by storing energy in the onboard energy storage device during idle periods when power demand is low. This pre-stored energy is then released during peak demand periods, eliminating the need for a high-capacity external power supply while ensuring sufficient power is available when needed.
Solution Approach 2:
The onboard energy storage device acts as an intermediary between the external power supply and the solid state drive. It decouples the power supply capacity from the peak power demand by storing energy when not needed and releasing it when needed, allowing a low-capacity external power supply to support a high-power device.
2Device complexity
If the external power supply capacity is limited to reduce cost and size, then the power supply system becomes more economical and compact, but the solid state drive experiences increased latency during peak power demand periods
Solution Approach 1:
The system performs preliminary action by continuously charging the onboard energy storage device during idle periods. This ensures that energy is already available and stored before peak demand occurs, allowing the solid state drive to access power immediately without latency when high power is needed.
3Loss of time
If the solid state drive uses onboard energy storage to deliver more power than the external supply can provide, then latency is reduced and performance is improved, but the device complexity and cost of the memory device increases
Solution Approach 1:
The onboard energy storage device serves as an intermediary power source within the memory device. It absorbs the complexity of power management by handling peak demand internally, allowing the rest of the memory device to operate with simplified power requirements while maintaining high performance.
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
This solution enables improved performance and reduced latency by supplementing power during high demand periods, maintaining performance without throttling and providing a temporary power backup in case of external supply failure.
Implementation Method 1
the power delivery circuitry of the memory device includes an onboard energy storage configured to store available input power (i.e., energy) of the external power source in the energy storage
Data Source
AI summary
Embodiments of the present disclosure are directed to systems and methods for a memory device comprising a memory system and power delivery circuitry comprising an energy storage, wherein the power delivery circuitry is configured to simultaneously deliver a first power from the energy storage and a second power from an external power supply coupled to the memory device.