Dynamic Power Rating Identification in Adaptors

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Solution Overview

Problem

Existing power adaptor identification systems do not dynamically adjust power ratings based on operating conditions of the power adaptor or host information handling system, leading to inefficient power management and potential overheating.

Innovation Solution

A dynamic power source identification system that uses an analog to digital converter to measure voltage and associate it with multiple power ratings, adjusting power output based on temperature and host capabilities, and controlling a light emitting diode to indicate fault conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If power adaptors use a fixed power rating identification system, then the system is simple and reliable, but it cannot dynamically adjust to operating conditions leading to inefficient power management and potential overheating

Engineering Contradiction:

Improvedynamic power rating adjustmentVSAvoididentification system complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic power rating identification by continuously monitoring operating conditions (temperature, power consumption, voltage) and adjusting the identified power rating accordingly. The system transitions from a static fixed rating to a dynamic adaptive rating that changes based on real-time conditions, resolving the contradiction between adaptability and complexity by making the system responsive to environmental changes.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system employs feedback mechanisms by monitoring operating conditions and using this information to adjust the power rating identification. The feedback loop continuously evaluates temperature, power consumption, and voltage levels, then modifies the power rating output to optimize performance and prevent overheating, thereby achieving dynamic adaptability without excessive complexity.

Inventive Principle:

Principle #23Feedback

2Productivity

If power adaptors continuously monitor operating conditions to dynamically adjust power ratings, then power management efficiency improves, but energy consumption and system complexity increase

Engineering Contradiction:

Improvepower management efficiencyVSAvoidenergy consumption for monitoring

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The system monitors changes in key operating parameters (temperature, voltage, power consumption) and only adjusts the power rating when significant changes are detected. This parameter-based triggering mechanism improves power management efficiency by responding to actual conditions while minimizing unnecessary monitoring and adjustment operations, thereby reducing the energy overhead of the monitoring system.

Inventive Principle:

Principle #35Parameter changes

3Power

If power adaptors use peak power ratings consistently, then maximum power delivery is achieved, but overheating and reliability issues occur under sustained load

Engineering Contradiction:

Improvepower delivery capabilityVSAvoidthermal management reliability

Core Design Contradiction:

PowerVSReliability

Solution Approach 1:

The system implements periodic monitoring of operating conditions and adjusts power rating identification at intervals based on detected changes. Rather than continuously operating at peak power, the system periodically evaluates temperature and load conditions, then adjusts the power rating accordingly. This periodic adjustment mechanism allows peak power delivery when conditions permit while preventing sustained overheating, thereby maintaining both power capability and thermal reliability.

Inventive Principle:

Principle #19Periodic action

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

Enables efficient power management by dynamically adjusting power ratings and preventing overheating, while accurately identifying fault conditions within the power adaptor, reducing unnecessary returns and costs.

Implementation Method 1

uses an analog to digital converter to measure voltage

Methodology Applied

Scientific EffectAnalog to digital conversion:

Implementation Method 2

controlling a light emitting diode to indicate fault conditions

Methodology Applied

Scientific EffectLight emitting diode effect: Light Emitting Diode

Data Source

PatentUS11467641B2System and method for dynamically identifying a power adaptor power rating based on operating conditions

Publication Date: 2022.10.11 DELL PROD LP

AI summary

A power adaptor system may comprise a power source supplying input voltage according to a dynamic power rating to an operably connected host information handling system, a power source identification (PSID) module of the power adaptor receiving an adjustable setting voltage from the power source via a setting voltage port of the PSID module, and a controller of the PSID module executing code instructions to select the dynamic power rating for the power source based on a measurement of the adjustable setting voltage indicating an operating condition of the power adaptor or based on an indication of an operating condition the operably connected host information handling system, wherein the dynamic power rating is one of a plurality of dynamic power ratings in including an adjustable range of power levels at each dynamic power rating at which the power source is capable of operating.