Wireless Charging Transceiver With Dynamic Switching

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Solution Overview

Problem

Current wireless charging technologies are inefficient, with about 30% energy wastage and require larger batteries, making them inconvenient for users due to size and weight, and lack a universal connector for different electronic devices.

Innovation Solution

A wireless charging transceiver device with a coil, energy storage module, switch module, and resonant circuit that operates in three modes: autonomous charging, sending wireless charging signals, and receiving external charging signals, using a single coil and switch module to optimize energy conversion and storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If wireless charging technology is used, then charging convenience is improved, but energy conversion efficiency deteriorates with about 30% energy wastage

Engineering Contradiction:
Improvecharging convenienceVSAvoidenergy wastage
Core Design Contradiction:
Ease of operationVSLoss of energy

Solution Approach 1:

The patent implements dynamic switching between two electrical paths based on operating conditions. The switch module dynamically selects between the first electrical path (with rectifier circuit for magnetic body movement charging) and the second electrical path (with resonant circuit for resonant wireless charging), optimizing energy conversion efficiency for each mode while maintaining charging convenience.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If wireless charging function is added to power bank, then charging versatility is improved, but device size increases requiring larger battery

Engineering Contradiction:
Improvecharging versatilityVSAvoidpower bank size
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent designs a single coil that serves multiple functions: it can induce external magnetic fields for autonomous charging, receive external charging signals, and send wireless charging signals. The switch module and dual electrical paths enable this single component to perform what traditionally required separate systems, reducing power bank size while maintaining versatility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If wireless charging function is added to power bank, then charging versatility is improved, but device weight increases making it inconvenient to carry

Engineering Contradiction:
Improvecharging versatilityVSAvoidpower bank weight
Core Design Contradiction:
Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The patent makes the coil multi-functional so that one component performs multiple charging roles. This eliminates the need for separate heavy components for different charging modes, reducing overall power bank weight while maintaining the ability to charge various devices wirelessly.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Adaptability or versatility

If traditional wireless charging design is used, then charging function is provided, but device complexity increases requiring multiple coils and circuits

Engineering Contradiction:
Improvecharging functionVSAvoidnumber of coils and circuits
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into a single coil and uses a switch module to control two electrical paths. Instead of using separate coils and circuits for different charging modes, the invention combines autonomous charging, external charging reception, and wireless charging transmission functions into one integrated system with a single coil, reducing overall device complexity.

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 solution reduces energy wastage, minimizes battery size and weight, and provides a universal charging solution for various devices, enhancing convenience and efficiency by using a single coil and switch module to manage energy storage and transmission.

Implementation Method 1

The coil is for inducing an external magnetic field or receiving an external charging signal

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

the resonant circuit resonates with the coil

Methodology Applied
Scientific EffectResonance: Resonance

Data Source

PatentUS9647484B2Wireless charging transceiver device and wireless charging control method
Publication Date: 2017.05.09 WISTRON CORP
  • US9647484B2 patent drawing
  • US9647484B2 patent drawing
  • US9647484B2 patent drawing

AI summary

A wireless charging transceiver device includes an energy storage module, a coil, a switch module, a rectifier circuit, and a resonant circuit. The coil is used to induce an external magnetic field or receive an external charging signal, and is used to transmit a wireless charging signal. The switch module is used to be coupled between the energy storage module and the coil through a first or second electrical path. The rectifier circuit is coupled between the energy storage module and the switch module, and is sited in the first electrical path, and rectifying a first inducing current which is induced from the external magnetic field in a first mode. The resonant circuit is coupled between the energy storage module and the switch module, and is sited in the second electrical path.