Wireless Power Transmitter Dynamic Timing Control
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Solution Overview
Problem
Wireless power transmission systems face interference with other wireless communication systems operating near the same frequency bands, disrupting normal signal transmission and reception in these systems.
Innovation Solution
A wireless power transmission apparatus that includes a power transmitter, detect circuitry, and control circuitry, which detects power in different frequency bands and determines a power transmission period based on set threshold values to minimize interference with nearby wireless communication systems, using a hardware configuration with antennas, switches, and storage to manage operation modes and timing for power transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If wireless power transmission is performed using an electromagnetic wave of a specific frequency, then power transmission efficiency is improved, but interference with other wireless communication systems using frequencies near the specific frequency occurs
Solution Approach 1:
The patent implements dynamic adjustment of power transmission parameters including frequency, power level, and transmission timing based on real-time detection of surrounding wireless communication environments. The control circuitry continuously monitors communication signals and adapts power transmission characteristics to maintain efficiency while avoiding interference, transforming the static frequency-based transmission into a dynamic multi-parameter control system
Solution Approach 2:
The patent employs periodic transmission cycles with detection phases and transmission phases. During each cycle, the system first detects the wireless communication environment, then transmits power during appropriate time windows, and repeats this process. This periodic structure allows the system to maintain power transmission while periodically checking for and avoiding interference with communication systems
Solution Approach 3:
The patent changes multiple transmission parameters including frequency selection within the power transmission frequency band, power level adjustment, and transmission timing modification based on detected communication signal conditions. By dynamically adjusting these parameters, the system maintains effective power transmission while adapting to avoid interfering with nearby wireless communication systems
2Power
If power transmission period is extended to increase power delivery, then power transmission capability is improved, but interference duration with nearby wireless communication systems increases
Solution Approach 1:
The patent structures power transmission as periodic cycles consisting of detection phases followed by transmission phases. Within each cycle, the system briefly detects communication signals and then transmits power for optimized durations. This periodic approach delivers necessary power while limiting continuous interference exposure time for nearby communication systems
Solution Approach 2:
The patent dynamically adjusts transmission timing and duration based on real-time detection of communication signal strength and activity. When communication signals are detected, the system modifies transmission timing to avoid overlapping with communication operations, thereby reducing interference duration while maintaining overall power delivery capability through adaptive scheduling
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
Enables wireless power transmission without generating serious interference with nearby wireless communication systems, ensuring reliable operation of both power transmission and communication systems by dynamically adjusting power transmission timing and magnitude based on detected power levels.
Implementation Method 1
a power transmitter configured to transmit power by an electromagnetic wave of a power transmission frequency band
Implementation Method 2
detect circuitry configured to detect power in a frequency band different from the power transmission frequency band
Data Source
AI summary
According to one embodiment, an electronic apparatus includes a power transmitter, detect circuitry and control circuitry. The power transmitter is configured to transmit a power by an electromagnetic wave of a power transmission frequency band according to a power transmission period. The detect circuitry is configured to detect a power in a frequency band different from the power transmission frequency band. The control circuitry is configured to determine the power transmission period based on a first threshold value, a second threshold value, a third threshold value and a fourth threshold value.