Wireless Power Supply Apparatus Frequency Switching
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Solution Overview
Problem
Existing power supply apparatuses face challenges in simultaneously and efficiently supplying power to multiple devices with different types of connections, both wired and wirelessly, particularly due to limitations in using magnetic induction or resonance effects.
Innovation Solution
A power supply apparatus that includes a power conversion unit, a wireless power supply unit capable of switching frequencies to transmit power wirelessly at one of multiple resonance frequencies, and a controlling unit to adjust the switching frequency based on user input and charging feedback, allowing for simultaneous wired and wireless power supply to various devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a wired power supply apparatus is used, then power can be supplied directly to electronic apparatus, but it requires cable connection and lacks flexibility for different device types
Solution Approach 1:
The power supply apparatus is designed to support multiple power transmission modes (magnetic induction and magnetic resonance) within a single device, enabling it to charge various types of electronic devices with different power requirements and connection preferences through a unified interface
2Adaptability or versatility
If magnetic induction effect is used for wireless power supply, then power can be transmitted wirelessly, but it is limited to specific resonance frequencies and cannot simultaneously supply power to multiple devices
Solution Approach 1:
The wireless power supply unit is divided into multiple independent power transmission coils, each capable of operating at different resonance frequencies. This segmentation allows the system to simultaneously charge multiple devices with different power requirements by assigning each device to an appropriate coil-frequency combination
Solution Approach 2:
The system dynamically switches between different resonance frequencies and power transmission modes based on the detected device types and charging requirements, enabling flexible adaptation to various charging scenarios and simultaneous multi-device support
3Device complexity
If a single resonance frequency is used for wireless power transmission, then the system is simpler to control, but it cannot adapt to varying charging demands of different devices
Solution Approach 1:
The system changes the resonance frequency parameter based on the detected device type and charging requirements. The controlling unit selects appropriate frequency values from a predefined set, allowing adaptation to different devices while maintaining relatively simple control logic through predefined frequency switching
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 and flexible power transmission to multiple devices using either magnetic induction or resonance, supporting fast charging and multi-device charging capabilities while adapting to varying charging demands.
Implementation Method 1
power may be supplied to the charger embedded in the electronic apparatus in a non-contact manner by a magnetic induction effect
Implementation Method 2
power may be supplied to the charger embedded in the electronic apparatus in a non-contact manner by a magnetic resonance effect
Data Source
AI summary
A power supply apparatus for supplying power in a wireless manner or a wired-wireless manner is provided. The power supply apparatus includes a power conversion unit converting input power into first power, and a wireless power supply unit varying a switching frequency switching the first power to wirelessly transmit the switched first power in one of a first wireless transmission manner or a second wireless transmission manner or wirelessly transmit the switched first power at a frequency within a resonance frequency band of one wireless transmission manner of wireless transmission manners having different resonance frequency bands.