Wireless Charger Power Allocation via Residual Energy Detection

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Solution Overview

Problem

Existing wireless chargers lack efficient and guided charging mechanisms, as they do not accurately determine the required power of an electronic device and manage the residual power of the charger effectively, leading to inefficient charging processes.

Innovation Solution

A wireless charger system with a coil assembly, control unit, identification, detection, comparing, and allocating modules that communicate with the electronic device to determine its power needs and manage the residual charger power, converting it into electromagnetic waves for efficient charging via electromagnetic induction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If wireless charger does not accurately determine required power of electronic device, then charging process is simple, but charging efficiency deteriorates

Engineering Contradiction:
Improvecharging efficiencyVSAvoidcharging control complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by having the wireless charger detect and determine the required power of the electronic device before the actual charging process begins. The control unit detects the electronic device's power requirements in advance, compares them with available residual power, and formulates a charging plan beforehand, ensuring efficient charging without unnecessary complexity during the charging execution phase.

Inventive Principle:
Principle #10Preliminary action

2Use of energy by moving object

If wireless charger does not manage residual power effectively, then charging process is simple, but power utilization efficiency deteriorates

Engineering Contradiction:
Improvepower utilization efficiencyVSAvoidpower management complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent applies feedback by implementing a closed-loop power management system where the control unit continuously monitors the residual power in the wireless charger, detects the electronic device's power requirements, compares available power with required power, and adjusts the charging parameters accordingly. This feedback mechanism ensures optimal power utilization while maintaining manageable system complexity through automated control.

Inventive Principle:
Principle #23Feedback

3Productivity

If wireless charger provides guided charging decisions, then charging efficiency is improved, but system complexity increases

Engineering Contradiction:
Improvecharging efficiencyVSAvoidsystem structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies merging by integrating multiple functions into a unified control unit that handles device identification, power requirement detection, residual power monitoring, comparison logic, and charging control all in one component. This consolidation improves charging efficiency through comprehensive guided charging decisions while preventing excessive system complexity by avoiding multiple separate modules for each function.

Inventive Principle:
Principle #5Merging (Combining)

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

The system ensures convenient and efficient charging by accurately determining the electronic device's power requirements and optimizing the use of residual charger power, providing guided charging decisions to fully or partially charge the device based on available power.

Implementation Method 1

a coil assembly (10) configured to convert a first proportion of the residual electric power of the wireless charger into electromagnetic waves

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS9548624B2Wireless charger and charging method using same
Publication Date: 2017.01.17 CHIUN MAI COMM SYST INC
  • US9548624B2 patent drawing
  • US9548624B2 patent drawing
  • US9548624B2 patent drawing

AI summary

A charger for wirelessly charging an electronic device by electromagnetic induction includes a coil assembly and a control unit. The control unit includes an identification module, a detection module, a comparing module, and an allocating module. The identification module identifies the electronic device. The detection module detects power rating and required electric power of the electronic device. The comparing module compares residual electric power of the wireless charger with the required electric power of the electronic device. The allocating module selects a portion of the residual electric power of the wireless charger. The coil assembly converts the portion of the residual electric power of the wireless charger into electromagnetic waves, and directs the electromagnetic waves to the electronic device.