Wireless Power Control Circuit Harmonic Communication
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Solution Overview
Problem
Conventional wireless power transmission controlling apparatuses require separate circuits for generating different communication and power supplying frequencies, leading to manufacturing complexities and inefficiencies, especially when using out-of-band communication schemes.
Innovation Solution
The apparatus utilizes harmonic waves generated from the power supplying signal as the communication frequency, eliminating the need for a separate circuit by filtering and passing harmonic waves corresponding to a predetermined communication frequency band for controlling power transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate circuits are used for generating communication frequency and power supplying frequency, then bidirectional communication can be performed freely, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the power supplying function and communication function into a single circuit by using the same oscillating circuit to generate both the power supplying signal at frequency f0 and the communication signal at harmonic frequency 2f0. This eliminates the need for separate circuits while enabling bidirectional communication.
Solution Approach 2:
The oscillating circuit is designed to serve multiple functions: generating the primary power supplying frequency f0 and simultaneously generating the communication frequency 2f0 through its harmonic waves. This multi-functionality reduces device complexity while maintaining communication capabilities.
2Power
If in-band communication scheme is used with high power supplying signal strength, then communication can be performed, but FCC standard compliance is violated
Solution Approach 1:
The patent uses periodic harmonic waves at frequency 2f0 for communication, which are naturally generated by the oscillating circuit during power transmission. This periodic action at a different frequency allows communication without violating FCC power limits for the power supplying band.
Solution Approach 2:
The patent transitions from using the fundamental frequency f0 for both power and communication (one dimension) to using the fundamental frequency f0 for power and the harmonic frequency 2f0 for communication (another dimension). This frequency dimension separation allows high power transmission while complying with FCC standards.
3Object-affected harmful factors
If out-of-band communication scheme is used with different frequency bands, then FCC standard compliance is achieved, but separate circuits are required increasing manufacturing complexity
Solution Approach 1:
The oscillating circuit generates its own harmonic waves at frequency 2f0 that can be used for communication. The circuit serves itself by providing the communication signal from its own operation, eliminating the need for external separate circuits and reducing manufacturing complexity.
Solution Approach 2:
The patent changes the frequency parameter of the communication signal to be exactly twice the power supplying frequency (2f0), which is a natural harmonic of the oscillating circuit. This parameter relationship allows the same circuit to generate both frequencies without requiring separate circuitry.
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 configuration simplifies the circuit design, reduces costs, and enables efficient bidirectional communication without violating signal strength limitations, adhering to standards like the FCC standard.
Implementation Method 1
filter the wireless power transmission control signal and pass a harmonic wave corresponding to a predetermined communication frequency band
Implementation Method 2
transmit the wireless power transmission control signal based on the harmonic wave
Implementation Method 3
compute an amount of transmission power to be transmitted, based on information received from a wireless power receiving apparatus; output a wireless power transmission control signal corresponding to the computed amount of transmission power
Data Source
AI summary
A wireless power transmission controlling apparatus and method are provided. The apparatus includes a communication unit; and a controller configured to compute an amount of transmission power to be transmitted, based on information received from a wireless power receiving apparatus; output a wireless power transmission control signal corresponding to the computed amount of transmission power; filter the wireless power transmission control signal and pass a harmonic wave corresponding to a predetermined communication frequency band; and control the communication unit to transmit the wireless power transmission control signal based on the harmonic wave.