RF Wireless Power Transfer With Rectifier-Based DC Output
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Solution Overview
Problem
Existing wireless power transmission systems are complex, costly, and cumbersome for users due to the need for multiple interconnected components and extensive wiring, making repositioning of system components difficult.
Innovation Solution
A system comprising a radio frequency transmitter, receiver with an antenna, and a rectifier that converts RF waves to DC power, enabling wireless power transmission to loads such as lights or toys, with optional energy storage for delayed power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing wireless power transmission systems use multiple interconnected components, then power transmission function is achieved, but system complexity increases and cost increases
Solution Approach 1:
The patent combines the transmitter and receiver into a single wireless power transmission unit that can operate independently. This merging of functions into an integrated system eliminates the need for multiple interconnected components while maintaining reliable power transmission capability through wireless communication between the unified device and the target load.
Solution Approach 2:
The wireless power transmission system is designed to perform multiple functions including power transmission, communication, and control within a single integrated platform. This multi-functionality reduces the need for separate specialized components, thereby simplifying the overall system architecture while maintaining robust power transmission functionality.
2Reliability
If existing wireless power transmission systems use extensive wiring, then power transmission is achieved, but ease of operation deteriorates
Solution Approach 1:
The patent replaces the mechanical wiring system with a wireless power transmission mechanism. This substitution eliminates physical connections between power sources and loads, allowing components to be repositioned freely without the constraint of extensive wiring, thereby dramatically improving ease of operation while maintaining reliable power transmission through electromagnetic fields.
3Reliability
If existing wireless power transmission systems require multiple components, then power transmission capability is achieved, but cost increases
Solution Approach 1:
By merging the transmitter and receiver functions into a single integrated wireless power unit, the patent reduces the total component count required in the system. This consolidation lowers manufacturing costs through reduced assembly requirements, fewer individual components to source and test, and simplified supply chain management, while maintaining full power transmission capability.
Solution Approach 2:
The patent segments the wireless power transmission system into a single modular unit that can be independently manufactured and deployed. This segmentation approach allows for standardized production of self-contained units, reducing overall system cost through economies of scale and simplified manufacturing processes compared to assembling multiple specialized components.
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 efficient, user-friendly wireless power transmission over short distances, reducing complexity and cost by eliminating the need for wiring and allowing flexible placement of components.
Implementation Method 1
at least one rectifier electrically coupled to the at least one antenna and configured to convert the radio frequency waves to direct current (DC) power
Data Source
AI summary
There is provided a system for wireless power transmission comprising at least one radio frequency transmitter configured to emit radio frequency waves, at least one radio frequency receiver remote from the at least one radio frequency transmitter, the at least one radio frequency receiver comprising at least one antenna configured to wirelessly receive the radio frequency waves from the at least one radio frequency transmitter, and at least one rectifier electrically coupled to the at least one antenna and configured to convert the radio frequency waves to direct current (DC) power, and at least one load electrically coupled to the at least one radio frequency receiver, the at least one load configured to receive from the at least one rectifier the DC power and to operate based thereon.