Single Coil Wireless Charging and Communication

Solution Overview

Problem

Electronic devices that wirelessly receive power and perform magnetic field communication require multiple coils and modules, leading to increased space and material costs as the number of components grows.

Innovation Solution

An electronic device incorporating a single coil for both wireless charging and magnetic field communication, utilizing a capacitor to protect internal circuits and control power reception, allowing for the use of a single antenna for multiple charging methods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple coils and modules are used for wireless charging and magnetic field communication, then the device can perform both functions, but the space and material costs increase

Engineering Contradiction:

Improvefunctional versatilityVSAvoiddevice space

Core Design Contradiction:

Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent applies multi-functionality by enabling a single coil to perform both wireless charging and magnetic field communication functions. The controller selectively activates the coil for different operations based on the operational mode, eliminating the need for separate dedicated coils for each function and thereby reducing device space while maintaining functional versatility

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the wireless charging coil and magnetic field communication coil into a single shared coil structure. By combining these previously separate components into one unified coil that can operate in different modes, the patent reduces the overall component count and space requirements while preserving both charging and communication capabilities

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If multiple coils and modules are used for wireless charging and magnetic field communication, then the device can perform both functions, but the material cost increases

Engineering Contradiction:

Improvefunctional versatilityVSAvoidmaterial cost

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent applies multi-functionality by enabling a single coil to perform both wireless charging and magnetic field communication functions. The controller selectively activates the coil for different operations based on the operational mode, eliminating the need for separate dedicated coils for each function and thereby reducing device space while maintaining functional versatility

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the wireless charging coil and magnetic field communication coil into a single shared coil structure. By combining these previously separate components into one unified coil that can operate in different modes, the patent reduces the overall component count and space requirements while preserving both charging and communication capabilities

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If a capacitor is driven to protect internal circuits from received power, then the controller is protected, but the capacitor requires control and detection mechanisms

Engineering Contradiction:

Improvecontroller protectionVSAvoidcontrol mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-configuring the capacitor in parallel with the controller before power reception occurs. The capacitor is positioned and connected in advance as a protective element, ready to immediately shunt excess power away from the controller when needed, without requiring complex real-time decision-making or active control during the power reception event

Inventive Principle:

Principle #10Preliminary 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

This configuration reduces the physical space and material costs required for the device while enabling the use of multiple wireless charging and communication methods, effectively managing power reception and communication through a single coil setup.

Implementation Method 1

at least one capacitor for protecting the controller from the power

Methodology Applied

Scientific EffectCapacitance: Capacitance

Implementation Method 2

The electronic device can receive the power using a magnetic field

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS10326307B2Electronic apparatus and operating method thereof

Publication Date: 2019.06.18 SAMSUNG ELECTRONICS CO LTD

AI summary

An electronic apparatus and its operating method are provided. The electronic apparatus and its operating method can be configured to drive the capacitor, to detect the received power, and stop driving the capacitor.