Noncontact Communication Medium Resonance Circuit Q Value Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing noncontact communication systems face challenges in stabilizing power supply and suppressing waveform distortion of alternating current voltage, which affects communication reliability and efficiency.
Innovation Solution
A noncontact communication medium with a resonance circuit and a control circuit that adjusts capacitance and resistance values to resonate at a predetermined frequency, maximizing direct current voltage and minimizing waveform distortion by comparing voltage values of alternating and direct current voltages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the Q value is increased to maximize power output, then power stabilization is improved, but waveform distortion increases
Solution Approach 1:
The patent applies dynamics by making the resistance value adjustable rather than fixed. The control circuit dynamically changes the resistance value of the resistor connected in parallel to the antenna coil based on detected waveform distortion levels. This allows the system to adapt the Q value in real-time, reducing waveform distortion when necessary while maintaining power output, thus resolving the contradiction between power stabilization and waveform distortion suppression.
2Power
If the resonance frequency is optimized for maximum voltage output, then power output is improved, but communication reliability deteriorates due to waveform distortion
Solution Approach 1:
The patent implements feedback by having the control circuit continuously detect the waveform of the alternating current voltage generated by the resonance circuit. Based on this feedback, the control circuit adjusts the resistance value to maintain optimal communication reliability while preserving sufficient power output. The feedback mechanism allows the system to self-correct waveform distortion without significantly reducing power generation.
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 solution achieves stable power supply and suppresses waveform distortion, ensuring reliable and efficient noncontact communication by optimizing resonance frequency and Q value adjustments.
Implementation Method 1
an antenna coil, and a control circuit. The resonance circuit includes a variable condenser connected in parallel to the antenna coil, and a variable resistor connected in parallel to the antenna coil
Implementation Method 2
the resonance circuit includes a variable condenser connected in parallel to the antenna coil, and a variable resistor connected in parallel to the antenna coil, the control circuit adjusts capacitance of the variable condenser to cause the resonance circuit to resonate at a predetermined resonance frequency
Data Source
AI summary
A noncontact communication medium includes a resonance circuit configured to resonate using an induced current induced by the antenna coil to generate an alternating current voltage, and a control circuit. The resonance circuit includes a variable condenser connected in parallel to the antenna coil, and a variable resistor connected in parallel to the antenna coil. The control circuit adjusts capacitance of the variable condenser to cause the resonance circuit to resonate at a predetermined resonance frequency, and adjusts a resistance value of the variable resistor to adjust a Q value. The noncontact communication medium operates using power based on a direct current voltage obtained by rectifying the alternating current voltage. And the communication is communication using a signal corresponding to a waveform of the alternating current voltage.