Wireless Power Transmitter Capacitor Reconfiguration
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Solution Overview
Problem
Conventional wired power supplies for portable electronic devices are inconvenient and inefficient, and existing wireless power transmission technologies face challenges in efficiently transferring power over short distances and adapting to changing environments.
Innovation Solution
A wireless power transmission system that uses a plurality of capacitors connected in parallel for charging and in series for discharging, with a controller managing the electrical connections to optimize resonance frequency and power transfer, allowing for efficient power transmission and data modulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If capacitors are connected in parallel for charging, then charging capacity and power supply stability are improved, but the resonance frequency and power transmission efficiency deteriorate
Solution Approach 1:
The patent applies dynamic reconfiguration of capacitor connections, switching between parallel and series configurations based on operational requirements. The controller dynamically changes the electrical connection state of capacitors to optimize performance for different functions: parallel for charging stability, series for power transmission efficiency.
Solution Approach 2:
The patent changes the electrical connection parameter of capacitors between parallel and series configurations. This parameter change allows the system to adjust total capacitance and resonance frequency, thereby optimizing both charging capacity and power transmission efficiency under different operating conditions.
2Power
If capacitors are connected in series for discharging, then power transmission efficiency and resonance frequency are improved, but charging capacity and stability deteriorate
Solution Approach 1:
The system dynamically reconfigures capacitor connections from series to parallel based on operational phase. During power transmission, capacitors are connected in series to optimize resonance frequency and efficiency. During charging, they are reconfigured to parallel to maximize charging capacity and stability.
Solution Approach 2:
The electrical connection parameter of capacitors is changed between series and parallel configurations to adjust system characteristics. Series connection optimizes resonance frequency for efficient power transmission, while parallel connection provides stability during charging operations.
3Device complexity
If fixed capacitor connection is used, then device complexity is reduced, but adaptability to environmental changes and impedance mismatching deteriorates
Solution Approach 1:
The patent implements dynamic reconfiguration of capacitor connections controlled by a controller that monitors operating conditions. This allows the system to adapt to environmental changes and impedance variations by adjusting capacitor connectivity, enhancing versatility while maintaining manageable complexity through automated control.
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 system enhances power transmission efficiency by adjusting capacitance and resonance frequency, enabling high-capacity power transfer and data transmission while reducing the impact of environmental changes and impedance mismatching.
Implementation Method 1
The short distance wireless power transmission may correspond to an implementation in which a distance between a transmission coil and a reception coil is sufficiently shorter than a wavelength in an operating frequency. A wireless power transmission and reception system using a resonance characteristic may include a source providing power and a target being provided with power.
Data Source
AI summary
Provided is a wireless power data transmission system that may transmit wireless power and may transmit data using wireless power. A wireless power transmitter may include capacitors, and may convert an electrical connection of the capacitors to a parallel connection for charging. The wireless power transmitter may also convert the electrical connection of at least two of the capacitors to a series connection for discharging.