Storage Device Voltage Detection for Power Optimization
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Solution Overview
Problem
In mobile devices, storage systems face challenges in reducing power consumption, particularly in maintaining low operating voltages to optimize battery life, while ensuring reliable power supply to nonvolatile memory devices.
Innovation Solution
A storage system with a detection terminal and a sensing resistor connected to a host, allowing the host to determine the power supply voltage based on the detection voltage, ensuring it falls within an allowable range, thereby reducing power consumption and ensuring proper operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the operating voltage of the storage device is reduced to lower power consumption, then power consumption is reduced, but the reliability of power supply may be compromised
Solution Approach 1:
The storage device dynamically adjusts its operating voltage based on detection voltage levels. The device can operate at different voltage levels (e.g., 1.2V or 3.3V) depending on the host's capability, allowing it to reduce power consumption when possible while maintaining reliability when needed. This is achieved through voltage detection circuits that sense the host's voltage level and adjust operating parameters accordingly.
Solution Approach 2:
The invention changes the operating voltage parameter based on detection results. By detecting the voltage level provided by the host and adjusting the storage device's operating voltage accordingly, the system optimizes power consumption while ensuring reliable operation. The device can switch between different voltage modes to balance power efficiency and reliability.
2Adaptability or versatility
If a fixed power supply voltage is used, then the power supply is simple, but it cannot adapt to different operating conditions and power consumption requirements
Solution Approach 1:
The storage device incorporates feedback mechanisms through detection terminals that sense the host's voltage level. Based on this feedback, the device automatically adjusts its operating voltage and mode. This feedback loop enables the system to adapt to different operating conditions without requiring complex manual configuration or control logic.
Solution Approach 2:
The storage device performs self-configuration by detecting the host's voltage level and automatically adjusting its own operating parameters. The device serves itself by selecting appropriate operating modes based on the detected voltage, eliminating the need for complex external control circuits or manual intervention.
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 effectively reduces power consumption by dynamically adjusting the power supply voltage based on the detection voltage, ensuring efficient operation of nonvolatile memory devices while maintaining low operating voltages, thus enhancing battery life in mobile devices.
Implementation Method 1
a sensing resistor electrically connected to the detection terminal and having a resistance value that determines the level of the detection voltage
Data Source
AI summary
A storage device includes a nonvolatile memory and a connector configured to connect the storage device to a host. The connector includes a detection terminal that provides a detection voltage to the host, a sensing resistor electrically connected to the detection terminal and having a resistance value that determines the level of the detection voltage, and a power supply terminal that receives a power supply voltage from the host, wherein the power supply voltage is selected by the host in response to the detection voltage.