Dynamic Power Supply Rail Control for Variable Input Voltage

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Solution Overview

Problem

Electronic measurement devices often consume excessive power due to fixed power supply rail settings, leading to reduced battery life and increased energy consumption.

Innovation Solution

A method and system that dynamically adjust the power supply rail settings based on input signal voltage samples, switching between different settings to optimize power consumption and extend battery life.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the power supply rail is set to a high magnitude to handle peak input voltages, then the device can process high-voltage signals, but power consumption increases and battery life decreases

Engineering Contradiction:
Improveability to process high-voltage signalsVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic adjustment of the power supply rail magnitude based on the actual input signal voltage levels. The system transitions from a fixed high-magnitude power supply setting to a variable setting that adapts in real-time, reducing the power supply magnitude when input voltages are low and increasing it when high voltages are detected, thereby resolving the contradiction between handling peak signals and minimizing power consumption

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameters of the power supply rail by adjusting its magnitude dynamically. Instead of maintaining a constant high voltage level, the power supply magnitude is modified based on measured input signal characteristics, allowing the device to operate efficiently at lower power levels during normal conditions while maintaining the capability to handle high-voltage peaks when necessary

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the power supply rail is set to a high magnitude to ensure adequate headroom for signal processing, then signal integrity is maintained, but battery life is reduced

Engineering Contradiction:
Improvesignal integrityVSAvoidbattery life
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The system dynamically adjusts the power supply rail magnitude based on the actual input signal voltage levels. The system transitions from a fixed high-magnitude power supply setting to a variable setting that adapts in real-time, reducing the power supply magnitude when input voltages are low and increasing it when high voltages are detected, thereby resolving the contradiction between handling peak signals and minimizing power consumption

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameters of the power supply rail by adjusting its magnitude dynamically. Instead of maintaining a constant high voltage level, the power supply magnitude is modified based on measured input signal characteristics, allowing the device to operate efficiently at lower power levels during normal conditions while maintaining the capability to handle high-voltage peaks when necessary

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the power supply rail setting is fixed at a high magnitude, then the device can handle voltage peaks, but energy is wasted during low-voltage operation

Engineering Contradiction:
Improveability to handle voltage peaksVSAvoidenergy waste
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The system employs feedback mechanisms by continuously monitoring the input signal voltage levels and using this information to adjust the power supply rail magnitude accordingly. The measured input voltages feed back to the power supply control logic, which then modifies the power supply setting to match the actual operational requirements, preventing energy waste during low-voltage operation while maintaining the ability to handle voltage peaks when they occur

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system implements dynamic adjustment of the power supply rail magnitude based on the actual input signal voltage levels. The system transitions from a fixed high-magnitude power supply setting to a variable setting that adapts in real-time, reducing the power supply magnitude when input voltages are low and increasing it when high voltages are detected, thereby resolving the contradiction between handling peak signals and minimizing power consumption

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250147098A1Method and system for dynamically changing power supply rail setting based on input values
Publication Date: 2025.05.08 SNAP ON INC
  • US20250147098A1 patent drawing
  • US20250147098A1 patent drawing
  • US20250147098A1 patent drawing

AI summary

A method and system for controlling a power supply rail. The method includes adjusting a power supply rail for circuit component(s) to a first setting. The method includes determining voltage sample(s) by sampling an input voltage corresponding to an input signal. The method also includes determining whether the voltage sample(s) breach a first or second voltage threshold. Additionally, the method includes adjusting the power supply rail to a second setting if a predetermined quantity of the voltage sample(s) breach the first voltage threshold, wherein a magnitude of the second setting equals or is greater than a magnitude of the first setting; and adjusting the power supply rail to a third setting if the voltage sample(s) are captured during at least a threshold amount of time and do not breach the second voltage threshold. The magnitude of the first setting is greater than a magnitude of the third setting.