Dielectric Waveguide Galvanic Isolation Energy Transmission
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Solution Overview
Problem
Existing galvanically isolated energy transmission systems face limitations in power delivery due to diode-based rectifiers, which restrict power consumption to low levels, and lack efficient methods for high-voltage isolation and power distribution to multiple loads.
Innovation Solution
The use of a dielectric waveguide with strategically placed rectifier devices and an insulating shielding device allows for higher power transmission up to 10 watts, enabling power distribution to multiple loads through decoupling points along the waveguide, and utilizes materials like aluminum oxide or Teflon to minimize radiation losses and optimize transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If diode-based rectifiers are used for wireless energy transmission, then galvanic isolation is achieved, but power consumption is limited to low levels (below 1 watt)
Solution Approach 1:
The patent introduces a dielectric waveguide as an intermediary medium between the transmitter and rectifier. This waveguide enables electromagnetic energy to be guided and concentrated to the rectifier with minimal losses, allowing the rectifier to receive sufficient power for high-consumption loads while maintaining galvanic isolation. The dielectric waveguide acts as the mediator that resolves the contradiction between isolation and power delivery.
Solution Approach 2:
The patent replaces traditional wireless power transmission methods (which rely on near-field coupling and have limited power capacity) with a dielectric waveguide-based system. This substitution enables far-field or mid-field energy transmission with much higher power capacity, overcoming the power limitation of conventional rectifier-based wireless systems while preserving galvanic isolation.
2Device complexity
If a single rectifier device is used at the end of the waveguide, then the system is simple, but power distribution to multiple loads is not possible
Solution Approach 1:
The patent segments the single rectifier function into multiple distributed rectifier devices along the dielectric waveguide. Each rectifier can independently power different loads at different locations. This segmentation enables multi-load power distribution while keeping each individual rectifier unit simple, thus resolving the contradiction between system simplicity and distribution capability.
Solution Approach 2:
The dielectric waveguide serves multiple functions simultaneously: it guides electromagnetic energy, provides galvanic isolation, enables distributed power extraction at multiple points, and supports both single-load and multi-load configurations. This multi-functionality allows the system to adapt to different power distribution requirements without increasing overall system complexity.
3Power
If power is transmitted through a dielectric waveguide, then higher power levels (up to 10 watts or higher) are achieved, but radiation losses occur
Solution Approach 1:
The patent employs a dielectric waveguide structure that confines electromagnetic energy within its boundaries, preventing radiation losses. The waveguide acts as a flexible conduit that guides energy from the transmitter to the rectifier(s) with minimal leakage, enabling high power transmission efficiency even at elevated power levels of 10 watts or higher.
4Loss of energy
If the waveguide is made from materials like aluminum oxide or Teflon, then radiation losses are minimized and transmission efficiency is optimized, but manufacturing costs increase
Solution Approach 1:
The patent optimizes the dielectric properties (permittivity, loss tangent) of the waveguide material to minimize radiation losses and maximize transmission efficiency. By carefully selecting and tuning these material parameters, the system achieves high efficiency with materials that balance performance and manufacturability, rather than requiring exclusively expensive specialized materials.
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 solution enables efficient high-voltage energy transmission and data communication, allowing for simultaneous power delivery to multiple consumers with reduced radiation losses and increased efficiency, while maintaining compact dimensions and low hardware costs.
Implementation Method 1
energy transmission takes place through a dielectric waveguide
Implementation Method 2
the power received, ie the power intended for consumers, is significantly higher, namely up to 10 watts or higher
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to an arrangement and a method for the galvanically separated energy transmission, in which the energy is transmitted via a dielectric waveguide.