Removable Memory Power Feedback for Contact Resistance Voltage Drops
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Solution Overview
Problem
Removable memory devices operating on multiple types of power with different voltages are susceptible to voltage drops due to contact resistance and wiring resistance, leading to unstable voltage supply, which can affect their performance and reliability.
Innovation Solution
The information processing apparatus includes a power supply circuit with feedback wires connected to power supply terminals and ground terminals, allowing for precise control of voltages applied to removable memory devices, effectively canceling out voltage drops caused by contact and wiring resistances by feeding back the actual applied voltages and regulating the output voltages within permissible ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If removable memory device is connected via socket, then ease of installation and removal is improved, but voltage stability deteriorates due to contact resistance and wiring resistance
Solution Approach 1:
The patent implements feedback circuits that monitor the actual voltage at the memory device terminals and adjust the power supply output accordingly. The feedback mechanism detects voltage drops caused by socket contact resistance and wiring resistance, then compensates by adjusting the power supply voltage to maintain stable operation voltage at the memory device.
2Adaptability or versatility
If multiple types of power with different voltages are supplied, then adaptability to different memory operations is improved, but voltage control complexity increases
Solution Approach 1:
The patent divides the power supply system into separate power supply circuits for different voltage levels (e.g., first power supply circuit for 3.3V, second power supply circuit for 1.8V). Each circuit has its own feedback control mechanism, allowing independent optimization of each voltage rail while managing complexity through modular design.
Solution Approach 2:
The patent implements dynamic voltage adjustment where the power supply circuits can change output voltages based on operational requirements. The feedback circuits continuously monitor and adjust voltages to match the specific needs of different memory operations, enabling flexible adaptation without fixed voltage constraints.
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 ensures stable and precise application of power voltages to removable memory devices, enhancing their reliability and performance by compensating for voltage drops, thus maintaining the required voltage ranges for optimal operation.
Implementation Method 1
voltage drops caused by contact and wiring resistances
Implementation Method 2
feeding back the actual applied voltages and regulating the output voltages
Data Source
AI summary
According to one embodiment, an information processing apparatus includes a connecting portion connectable to a removable memory device and a power supply circuit configured to apply a first voltage and a second voltage to the removable memory device. When the removable memory device is connected to the connecting portion, one of a pair of first feedback wires is electrically connected to one of the first power supply terminals to which the first voltage is applicable, and the other of the pair of first feedback wires is electrically connected to one of the power supply ground terminals connectable to a ground level, the power supply circuit is configured to control the first voltage, based on a voltage between the pair of first feedback wires.