Memory Device External Power Voltage Detection
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Solution Overview
Problem
Memory devices face challenges in power consumption and reliability due to high power usage, which can lead to overheating and data degradation, especially in battery-powered systems and automotive applications where power efficiency is crucial.
Innovation Solution
Implementing external power functionality techniques that allow memory devices to detect and utilize a higher voltage external power source for access operations, thereby reducing the need for internal power conversion circuitry and minimizing power consumption and overheating risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If internal power conversion circuitry is used to generate high voltage for access operations, then the memory device can perform read/write operations, but power consumption increases and overheating risk increases
Solution Approach 1:
The patent extracts the power conversion function from the memory device by utilizing an external power source that directly provides the high voltage needed for access operations. This removes the internal charge pump circuitry that would otherwise be required to generate high voltage, thereby reducing power consumption and eliminating the associated overheating risks while maintaining the ability to perform read/write operations reliably
2Reliability
If internal power conversion circuitry is used to generate high voltage for access operations, then the memory device can perform read/write operations, but the device generates heat leading to overheating and data degradation
Solution Approach 1:
The patent removes the internal power conversion circuitry that generates heat through voltage conversion. By extracting this function and using an external power source that directly supplies the required high voltage, the patent eliminates the heat generation associated with internal charge pumps, thereby preventing overheating and data degradation while maintaining operational reliability
3Adaptability or versatility
If internal charge pump is used to convert voltage, then the memory device can operate with a single power source, but the device complexity increases
Solution Approach 1:
The patent extracts the voltage conversion function from the memory device by utilizing an external power source that directly provides the high voltage needed for access operations. This removes the internal charge pump circuitry that would otherwise be required, thereby reducing device complexity while maintaining power source flexibility through the external power interface
Solution Approach 2:
The patent implements multi-functionality by allowing the memory device to operate with different power source configurations - it can use an external power source for high voltage operations or fall back to internal power conversion when the external source is unavailable. This universal approach maintains adaptability while reducing complexity by eliminating the need for dedicated internal charge pump circuitry
Data Source
AI summary
Methods, systems, and devices for external power functionality techniques for memory devices are described. A memory system, which may be coupled to a first power source associated with a first voltage, may detect whether a second power source associated with a second voltage higher than the first voltage is available. The memory device may activate a functionality to use the second power source for the access operations if the second power source is available, and the memory device may then perform one or more access operations using the second voltage from the second power source based on the activated functionality.