Daisy-Chained Wireless Power Transmitters With Power Feedback
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Solution Overview
Problem
Existing wireless power transfer systems face challenges in ensuring stable and scalable power delivery, particularly in daisy-chained configurations where individual power supply wiring is cumbersome and power fluctuations can occur, leading to inefficient operation.
Innovation Solution
A wireless power transfer system with daisy-chained transmitters that include measurement units to monitor voltage and current, determining compliance with predetermined requirements, and notifying users or a central processing unit when these requirements are not met, allowing for stable power distribution through a single cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual power supply wiring is used for each transmitter, then power delivery stability is improved, but device complexity and installation burden increase
Solution Approach 1:
The patent combines multiple power supply connections into a single daisy-chained cable that sequentially connects the information processing apparatus to multiple transmitters. This single cable integrates both power supply and communication functions, eliminating the need for separate individual power wiring for each transmitter while maintaining stable power delivery through the series connection topology.
2Ease of operation
If daisy-chain connection is used for multiple transmitters, then ease of installation is improved, but power fluctuations occur leading to unreliable operation
Solution Approach 1:
The patent incorporates a feedback mechanism where each transmitter in the daisy-chain measures its received power parameters (voltage, current) and compares them against predetermined requirements. When power delivery is insufficient or fluctuates outside acceptable ranges, the system generates notifications to alert the information processing apparatus or users, enabling real-time monitoring and corrective action to maintain reliable operation.
3Reliability
If measurement and notification functions are added to transmitters, then power delivery reliability is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into the transmitter unit: power reception from the daisy-chain cable, power measurement (voltage and current sensing), requirement compliance determination, and notification generation. By combining these functions in a single multi-functional device, the system achieves reliable power delivery monitoring without requiring separate dedicated components for each function, thus limiting the increase in overall system complexity.
Data Source
AI summary
A system including a plurality of transmitters configured to transmit a wireless signal for supplying power and an information processing apparatus configured to supply electric power for that transmission, wherein the plurality of transmitters are electrically connected in series with the apparatus in a daisy-chain connection, wherein at least one transmitter among the plurality includes a measuring means to measure at least one of a supply voltage and a supply current associated with the supplied electric power, wherein at least one of (i) a transmitter among the plurality of the transmitters or (ii) the information processing apparatus includes a determining means to determine whether at least one measured value satisfies a predetermined requirement.