Wireless Power Resonator Controller for Efficient Energy Transfer
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Solution Overview
Problem
Current wireless power transmission technologies face limitations in efficiently charging and transmitting power due to the need for wired connections and the inconvenience of battery capacity, which restricts the application in various devices and systems.
Innovation Solution
A wireless power transmission system comprising a source resonator and a target resonator with a controller that manages electrical connections to charge and transmit power through mutual resonance, using capacitors and inductors to optimize energy transfer and prevent backflow during charging and delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless power transmission is implemented using conventional methods, then power can be transmitted without wired connections, but transmission efficiency is reduced and system complexity increases
Solution Approach 1:
The patent applies resonance principles where the source resonator and target resonator are tuned to the same resonant frequency, enabling efficient energy transfer through oscillating electromagnetic fields. This resonance-based approach significantly improves transmission efficiency compared to conventional wireless power methods by minimizing energy loss during transmission.
Solution Approach 2:
The system dynamically adjusts the resonant frequency of both source and target resonators to match each other, optimizing the transmission conditions. By changing the operational parameters (frequency, impedance) based on real-time conditions, the system maintains high transmission efficiency across varying loads and distances.
2Power
If conventional wireless power transmission components are used, then power transmission is achieved, but device complexity increases due to need for power amplifiers and rectifiers
Solution Approach 1:
The patent extracts and eliminates unnecessary components from conventional wireless power systems. By using resonant oscillation directly from the power supply without requiring power amplifiers, rectifiers, or complex impedance matching networks, the system achieves power transmission with significantly reduced component count and system complexity.
Solution Approach 2:
The resonant circuit automatically self-regulates the power transmission process through its inherent oscillation characteristics. The source resonator naturally oscillates at its resonant frequency when powered, and the target resonator responds similarly, creating a self-sustaining energy transfer mechanism that requires no external control of complex components.
3Reliability
If source resonator is continuously charged from power supply, then power availability is maintained, but energy is wasted when not transmitting to target
Solution Approach 1:
The system employs periodic charging and discharging cycles of the source resonator rather than continuous charging. The controller monitors the charging state and disconnects the power supply when the resonator reaches sufficient charge level, then reconnects when energy needs to be replenished. This periodic operation maintains power availability while minimizing energy waste during idle periods.
Solution Approach 2:
The controller implements feedback control by monitoring the charging state of the source resonator and the presence of a target resonator. Based on this feedback, the controller intelligently controls the switching between charging mode and transmission mode, ensuring power is only drawn when necessary and transmitted only when a target is present, thus maintaining reliability while reducing energy waste.
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 system enables efficient wireless power transmission without the need for wired connections, maintaining high transmission efficiency and allowing for the charging of devices such as mobile phones and sensors, while reducing the complexity of impedance matching and eliminating the need for power amplifiers or rectifiers.
Implementation Method 1
transmit the charged power to a target resonator through a mutual resonance
Implementation Method 2
The source resonator may comprise at least one capacitor and one inductor
Implementation Method 3
The source resonator may comprise at least one capacitor and one inductor
Data Source
AI summary
Provided is a device and method for wirelessly transmitting power, and a wireless power transmission device that may control an electrical connection between a power charger and a transmitter to charge a source resonator with power and transmit the charged power to a target resonator through mutual resonance.