Removable Capacitor Power Pack for Solid State Storage Data Integrity
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Solution Overview
Problem
Solid state storage devices face data loss and incomplete write operations due to power interruptions, as volatile memory requires continuous power and flash memory is vulnerable to data corruption during power failures.
Innovation Solution
A solid state storage device with a removable power pack containing serially arranged capacitors that supply backup power to the processor, memory, and storage medium, along with a monitor circuit and active balance network to manage capacitor voltages, ensuring data integrity and completion of write operations during power outages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If volatile memory (DRAM/SRAM) is used to cache data and store management tables, then performance is improved, but data loss occurs when power is interrupted
Solution Approach 1:
The patent implements a backup power system with capacitors that are pre-charged during normal operation. When power is interrupted, these pre-charged capacitors immediately activate to provide backup power, allowing the volatile memory to maintain its data and continue operations without data loss. This preliminary preparation of backup power resolves the contradiction by ensuring the volatile memory's performance benefits are preserved while protecting against power interruption failures.
2Reliability
If a non-removable backup power system is implemented, then data integrity is improved, but ease of repair deteriorates
Solution Approach 1:
The patent divides the backup power system into a separate, modular capacitor pack that can be independently removed and replaced. This segmentation allows the backup power component to be serviced separately from the main storage device, enabling easy replacement of depleted capacitors without affecting other components. This modular design resolves the contradiction by maintaining data integrity through continuous backup power capability while dramatically improving ease of repair through independent module replacement.
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
The solution provides reliable backup power to maintain data integrity and complete write operations in the event of power interruptions, reducing data loss and corruption, and allows for easy replacement of capacitors, enhancing the device's reliability and usability.
Implementation Method 1
a removable power pack comprising a plurality of capacitors serially arranged in a housing, wherein the plurality of capacitors is detachably connected to the printed circuit board assembly to supply backup power to the processor, the memory, and the storage medium
Data Source
AI summary
A solid state storage device includes a printed circuit board assembly, a memory arranged on the printed circuit board assembly, and a storage medium arranged on the printed circuit board assembly. The storage device further includes a processor arranged on the printed circuit board assembly, wherein the processor is coupled to the memory and to the storage medium via the printed circuit board assembly, and wherein the processor is configured to store data in the memory and the storage medium and to read data from the memory and the storage medium. The storage device further includes a removable power pack comprising a plurality of capacitors serially arranged in a housing, wherein the plurality of capacitors is detachably connected to the printed circuit board assembly to supply backup power to the processor, the memory, and the storage medium when the removable power pack is mounted in the solid state storage device.