Wireless Charger Inductive Broadcast Circuit
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Solution Overview
Problem
Current methods for charging personal data devices are limited by the need for physical cables, which can be inconvenient and restrictive, especially in situations where a power source is not readily available.
Innovation Solution
A wireless portable electronic charger that draws AC energy from a national electric grid and uses inductive coupling to broadcast and convert it into DC energy for personal data devices, eliminating the need for physical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If physical cables are used for charging personal data devices, then reliable electrical connection is achieved, but convenience and accessibility are reduced
Solution Approach 1:
The patent replaces the mechanical cable connection system with an electromagnetic field-based wireless power transmission system. The mechanical plug-and-cable interface is substituted by inductive coupling between a power broadcast device and a power receive device, eliminating the need for physical contact while maintaining reliable power transfer through electromagnetic induction.
Solution Approach 2:
The patent introduces electromagnetic fields as an intermediary medium to transfer electrical energy between the power broadcast device and power receive device. Instead of direct physical connection, the electromagnetic field acts as the mediator that carries power wirelessly, resolving the contradiction between connection reliability and operational convenience.
2Ease of operation
If wireless inductive coupling is used for power transmission, then charging convenience is improved, but energy loss during transmission increases
Solution Approach 1:
The patent optimizes energy transmission efficiency by adjusting key parameters of the inductive coupling system, including operating frequency, coil geometry, and magnetic core materials. By carefully selecting and tuning these parameters, the system minimizes energy loss while maintaining wireless charging convenience, achieving better efficiency compared to conventional wireless charging approaches.
3Adaptability or versatility
If AC electrical energy is broadcast wirelessly from national electric grid, then portability and accessibility are enhanced, but device complexity increases
Solution Approach 1:
The patent designs the power broadcast device to perform multiple functions: it can broadcast power to multiple different personal data devices simultaneously, adapt to various device power requirements, and interface with standard AC electrical grids. This multi-functionality approach simplifies the overall system architecture while enhancing versatility and accessibility across different device types.
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 convenient and wireless recharging of personal data devices, providing a reliable and efficient means to recharge batteries without the constraints of physical cables, enhancing usability and accessibility.
Implementation Method 1
Each induction circuit selected from the one or more induction circuits: a) receives the AC electrical energy broadcast from the energy broadcast circuit; b) converts the received AC electrical energy into DC electrical energy
Data Source
AI summary
The wireless portable electronic charger recharges each of the one or more personal data devices. The wireless portable electronic charger: a) draws AC electrical energy from a national electric grid; and, b) wirelessly broadcasts the received AC electrical energy to the one or more personal data devices. The wireless portable electronic charger comprises an energy broadcast circuit and one or more induction circuits. The energy broadcast circuit broadcasts the received AC electrical energy to the one or more induction circuits. Each induction circuit selected from the one or more induction circuits: a) receives the AC electrical energy broadcast from the energy broadcast circuit; b) converts the received AC electrical energy into DC electrical energy suitable for use by a personal data device associated with the selected induction circuit; and, c) transmits the DC electrical energy to the battery of the personal data device.