Trimming PSU Voltage for IHS Low-Power State
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Solution Overview
Problem
Information handling systems face challenges in efficiently managing power consumption, particularly in transitioning between low-power and working states, which affects energy conservation and carbon reduction efforts.
Innovation Solution
The method involves adjusting undervoltage protection (UVP) and overcurrent protection (OCP) parameters by the voltage regulator module and power supply unit (PSU) to trim voltage and amperage, allowing the system to enter a low-power state and subsequently switch back to a working state, optimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If voltage and amperage are reduced to enter low-power state, then power consumption is reduced, but system reliability may deteriorate
Solution Approach 1:
The patent dynamically adjusts voltage and amperage parameters based on system state. During low-power states, the PSU reduces output voltage and current to minimize energy consumption. During working states, full voltage and current are restored to ensure reliable operation. This parameter adaptation resolves the contradiction by optimizing power consumption without permanently compromising system reliability.
Solution Approach 2:
The power supply system transitions dynamically between different operational modes (low-power state and working state) based on system requirements. The PSU and voltage regulator module continuously monitor and adjust electrical parameters, enabling the system to adapt power delivery to actual needs, thus reducing power consumption during idle periods while maintaining reliability during active operation.
2Use of energy by moving object
If UVP and OCP parameters are adjusted for low-power state, then power usage is optimized, but control complexity increases
Solution Approach 1:
The voltage regulator module and power supply unit perform multiple functions: they regulate voltage for normal operation, adjust UVP/OCP parameters for low-power states, and restore settings for working states. This multi-functionality reduces the need for separate control circuits, optimizing power usage without proportionally increasing control complexity.
Solution Approach 2:
The system employs feedback mechanisms where the voltage regulator module communicates with the power supply unit to coordinate UVP and OCP parameter adjustments. This feedback loop enables automated optimization of power usage based on system state, reducing manual intervention and simplifying overall control despite the increased parameter management requirements.
Data Source
AI summary
Controlling power consumption at an IHS, including receiving electrical power associated with an initial voltage at a first time; determining that the IHS is to enter a low-power state, and in response: adjusting an UVP parameter for the electrical power from a first voltage to a second voltage, the second voltage less than the first voltage, the second voltage based on the low-power state; adjusting an OCP parameter for the electrical power from a first amperage to a second amperage, the second amperage less than the first amperage, the second amperage based on the low-power state; trimming the initial voltage of the electrical power to a trimmed voltage, the trimmed voltage less the initial voltage and greater than the second voltage; adjusting the power state of the IHS to the low-power state; receiving the electrical power having the trimmed voltage at a second time after the first time.