Wireless Power Converter Node Voltage Reduction via Segmented Divider Units
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Solution Overview
Problem
Existing wireless power transmission converters face challenges in reducing voltage between nodes, especially at high output power levels, leading to increased costs due to the need for high-voltage components to ensure safety.
Innovation Solution
The converter design incorporates a first and second transmitting circuit with divider units comprising inductor and capacitor networks coupled in series, allowing for alternating coupling of inductor and capacitor networks, and includes resonant networks and control modules to adjust operating frequencies, thereby reducing voltage between nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high output power is used to enhance transmission capability, then power transmission efficiency is improved, but voltage between nodes is significantly increased requiring high-voltage components which increases cost
Solution Approach 1:
The patent divides the transmitting circuit into multiple divider units, each containing inductor and capacitor networks. This segmentation allows the voltage to be distributed across multiple components rather than appearing across a single component, enabling the use of lower-voltage-rated (cheaper) components while maintaining high output power capability.
Solution Approach 2:
The patent introduces a new structural dimension by creating alternating series couplings between inductor and capacitor networks across multiple divider units. This multi-dimensional arrangement transforms the voltage distribution from a single-point high-voltage stress to a distributed pattern across multiple components, reducing the voltage rating requirements for individual components.
2Reliability
If high-voltage components are selected to ensure operational safety at high output power, then reliability is improved, but device complexity and cost are increased
Solution Approach 1:
By segmenting the circuit into multiple divider units with distributed inductor and capacitor networks, the patent reduces the voltage stress on each individual component. This allows the use of standard-voltage-rated components while maintaining operational safety through the collective voltage distribution across the segmented structure.
Solution Approach 2:
The patent changes the voltage parameter distribution across the circuit by introducing multiple divider units with alternating series couplings. This parameter transformation converts a high-voltage single-point stress into a distributed lower-voltage pattern, allowing the use of components with standard voltage ratings while maintaining reliability.
3Ease of manufacture
If voltage between nodes is reduced to lower component voltage ratings, then cost is reduced, but maintaining high output power becomes challenging
Solution Approach 1:
The patent segments the transmitting circuit into multiple divider units, each contributing to the overall power transmission. The segmented structure allows voltage to be distributed across multiple components while the cumulative effect of all divider units working together maintains the high output power capability through coordinated operation.
Solution Approach 2:
The patent combines multiple divider units with alternating series couplings to achieve both voltage reduction and high power transmission. By merging the functions of multiple inductor and capacitor networks working in coordination, the system achieves the dual objective of using lower-voltage-rated components while maintaining high output power capability.
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 effectively reduces the maximum voltage between nodes, enhancing operational safety and reducing costs by leveraging AC properties of capacitors and inductors, while maintaining stability across varying output power levels.
Implementation Method 1
Each of the divider units includes an inductor network L11 ̃L1n (or L21 ̃L2m) and a capacitor network Cp1 ̃Cpn (or Cs1 ̃Csm).
Implementation Method 2
Each of the divider units includes an inductor network L11 ̃L1n (or L21 ̃L2m) and a capacitor network Cp1 ̃Cpn (or Cs1 ̃Csm).
Implementation Method 3
The technology of wireless power transmission transmits power by using a theory of electromagnetic induction.
Data Source
AI summary
A converter and method for reducing voltage of node thereof are disclosed herein. The converter includes a first transmitting circuit and a second transmitting circuit. The first transmitting circuit is configured to receive a first AC voltage. The second transmitting circuit is electrically coupled to the first transmitting circuit and the second transmitting circuit is configured to transmit a second AC voltage according to the first AC voltage. One of the first transmitting circuit and the second transmitting circuit includes at least one divider unit and the other one of the first transmitting circuit and the second transmitting circuit includes at least two divider units. Each of the divider units includes an inductor network and a capacitor network coupled in series. The inductor network and the capacitor network of the adjacent divider units are coupled in series alternately.