Multi-Resonance Phase Control for Resonant Frequency Tracking
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Solution Overview
Problem
In oscillation systems, the introduction of a resonance driver causes an additional phase shift, leading to the oscillator operating outside its resonant frequency and reducing oscillation amplitude, while existing solutions fail to accurately determine and adjust for the total phase shift across the system.
Innovation Solution
A controller determines the total phase shift of the oscillation system by simulating the phase shift caused by both the oscillator and the resonance driver, storing this value and adjusting the input signal to the driver to match it, ensuring the oscillator operates at its resonant frequency and maximizing amplitude.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a resonance driver is introduced to drive the oscillator, then power delivery efficiency is improved, but the driver introduces additional phase shift causing the oscillator to operate outside its resonant frequency and reducing oscillation amplitude
Solution Approach 1:
The system uses feedback control where the controller receives feedback signals from both the oscillator and driver, compares the actual phase difference with the ideal phase difference, and adjusts the driver input signal phase accordingly to maintain optimal operation at resonant frequency
Solution Approach 2:
The system dynamically adjusts the phase parameter of the driver input signal based on simulated and measured phase shift characteristics, allowing the system to operate at optimal resonant frequency while maintaining high power delivery efficiency
2Ease of operation
If the phase of the input signal to the driver is not adjusted, then the system is simpler to operate, but the oscillator operates outside its resonant frequency reducing oscillation amplitude
Solution Approach 1:
The system performs preliminary simulation to determine the total phase shift before actual operation, storing this information for use during runtime to automatically compensate for phase effects without requiring manual adjustment
Solution Approach 2:
The controller automatically determines and adjusts the phase shift compensation without external intervention, using simulated phase shift values to self-correct the driver input signal phase and maintain optimal oscillation amplitude
3Reliability
If the controller adjusts the input signal phase based on simulated total phase shift, then oscillation amplitude is maximized, but the device complexity increases
Solution Approach 1:
The controller performs preliminary simulation to determine total phase shift characteristics before actual operation, storing these pre-calculated values for efficient runtime use, thereby reducing real-time computational complexity
Solution Approach 2:
The system uses simulated phase shift data as an intermediary element that bridges the gap between the driver and oscillator, allowing the controller to compensate for phase effects without requiring complex real-time measurements and adjustments
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 approach increases energy efficiency and reduces power consumption by ensuring the oscillator operates at its resonant frequency, while the driver operates near its resonant frequency, thereby enhancing oscillation amplitude and power delivery efficiency.
Implementation Method 1
the introduction of a resonance driver causes an additional phase shift, leading to the oscillator operating outside its resonant frequency
Implementation Method 2
To maximize oscillator amplitude, the oscillator may be driven to operate at its resonant frequency
Implementation Method 3
the resonance driver may be operated at a frequency proximate to the resonant frequency of the driver
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
A resonance system is disclosed, which includes a first resonance device configured to receive a drive signal and generate an output signal, a second resonance device configured to receive a control signal and generate the drive signal based on the received control signal, and a controller configured to generate the control signal based on the output signal such that a phase difference between the control signal applied to the second resonance device and the output signal of the first resonance device corresponds to a predetermined phase shift value.