MIMO Converter for Inductive Power Transfer Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless inductive power transmission systems face inefficiencies and increased complexity when supplying power to multiple energy storage devices or loads in parallel, requiring additional DC/DC converters that lead to higher costs, weight, and reduced system efficiency.
Innovation Solution
A multiple input multiple output converter that converts alternating input signals into rectified and averaged switched voltage signals, allowing for simultaneous power supply to multiple loads or energy storage devices without the need for additional DC/DC converters, thereby balancing voltage levels and optimizing hardware usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional DC/DC converters are used to supply power to multiple energy storage devices in parallel, then power supply capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent applies multi-functionality by enabling a single DC/DC converter to supply multiple energy storage devices through parallel connection. The converter performs multiple functions: rectifying AC input, generating switched voltage signal, and distributing power to multiple outputs simultaneously, eliminating the need for separate converters for each device.
Solution Approach 2:
The patent merges multiple power supply functions into a single DC/DC converter. By connecting multiple energy storage devices in parallel to one converter, the design combines what would traditionally require separate converters, thereby reducing overall circuit complexity and component count.
2Adaptability or versatility
If additional DC/DC converters are used to supply power to multiple energy storage devices, then power distribution is improved, but system cost increases
Solution Approach 1:
The single DC/DC converter is designed to perform multiple power distribution tasks simultaneously. It rectifies AC input, generates the necessary switched voltage, and distributes power to multiple energy storage devices, replacing what would traditionally require multiple expensive converter units.
Solution Approach 2:
The patent combines multiple power distribution functions into one converter unit, reducing the total number of components that need to be manufactured, assembled, and tested. This merging approach directly reduces system cost while maintaining the ability to distribute power to multiple devices.
3Adaptability or versatility
If additional DC/DC converters are used for parallel power supply, then power supply flexibility is improved, but system efficiency decreases
Solution Approach 1:
The single DC/DC converter maintains high efficiency while providing flexible power supply to multiple devices. By using one optimized converter rather than multiple less-efficient converters, the system achieves both flexibility and energy efficiency, as the single converter can be precisely controlled and optimized for the total power requirement.
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
The solution reduces system complexity and cost, enhances efficiency by eliminating the need for extra converters, and allows for balanced voltage levels across multiple energy storage devices, improving the overall performance of inductive power transfer systems.
Implementation Method 1
at least one rectifier circuit (18-1, 18-2, ..., 18-N) adapted to rectify the alternating input signal
Implementation Method 2
at least one averaging circuit (24-1, 24-2, ..., 24-N) adapted to average the switched voltage signal which is generated during rectification operation
Data Source
AI summary
An efficient solution to the problem of converting alternating signals into a plurality of signals having different signal characteristics in observation of different application requirements. This is achieved by a multiple input multiple output converter operated at a secondary side of an inductive power transfer system for converting at least one alternating input signal into a rectified alternating input signal and a further signal derived by averaging a switched voltage generated during rectification of the alternating input signal. The multiple input multiple output converter comprises at least one rectifier circuit adapted to rectify the alternating input signal and at least one averaging circuit adapted to average the switched voltage which is generated during rectification operation of the eat least one alternating input signal.