Portable Device Power Sharing via Daisy-Chain Wireless Transfer
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Solution Overview
Problem
There is no known mechanism for charging the internal batteries of multiple portable electronic devices from a single direct connection to a power outlet, limiting their usage when power outlets are scarce, such as in foreign travel or environments with many devices competing for limited outlets.
Innovation Solution
A power sharing system where portable electronic devices are connected in a daisy chain configuration, allowing power to be received through one device's input port, charged, and then distributed to other devices via output ports, eliminating the need for separate connections to a mains power outlet for each device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each portable electronic device is connected directly to a power outlet, then each device can be charged independently and reliably, but the system requires multiple power outlets and increases device complexity when scaling to multiple devices
Solution Approach 1:
The patent combines multiple charging operations into a single power connection by implementing a daisy-chain topology where the first device receives power from one outlet and sequentially charges subsequent devices through wireless power transfer. This merging approach maintains charging reliability for all devices while eliminating the need for multiple separate power connections, thereby reducing system complexity.
Solution Approach 2:
The first portable electronic device acts as an intermediary between the power outlet and subsequent devices. It receives power through its input stage, charges its own battery, then serves as a mobile power source for other devices through wireless power transfer. This intermediary role enables reliable charging propagation through the chain while maintaining a simple single-point power connection to the outlet.
2Adaptability or versatility
If multiple devices are charged from a single power outlet, then the need for power converters and adapters is reduced, but power distribution efficiency decreases
Solution Approach 1:
The system maintains continuous useful action by ensuring that power flows continuously through the chain of devices. The first device continuously receives power from the outlet and simultaneously charges subsequent devices through wireless power transfer. This continuous operation maximizes power utilization efficiency while maintaining adaptability to single-outlet environments.
Solution Approach 2:
The patent implements dynamic power distribution where the first device adjusts its power output based on the charging needs of subsequent devices. The wireless power transfer enables dynamic adaptation of power delivery rates, ensuring optimal efficiency while maintaining the ability to charge multiple devices from a single outlet.
3Ease of operation
If devices are connected in a daisy chain configuration, then the need for separate power connections is eliminated, but power loss increases during transmission
Solution Approach 1:
The patent replaces the mechanical wired power connection system with a wireless power transfer system. Instead of physically connecting each device to the outlet or to each other via power cables, the first device wirelessly transmits power to subsequent devices. This substitution eliminates the need for complex daisy-chain cable connections while minimizing power transmission losses through efficient wireless power transfer technology.
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 charging of multiple devices from a single power source, reducing the need for power converters and adapters, and optimizing power usage in environments with limited outlets.
Implementation Method 1
The portable electronic device includes a battery power source, an input stage connected to the first port, the input stage being operative to supply power received from the first network connection through the first port to the battery power source for recharging the battery power source
Data Source
AI summary
A portable electronic device is operative to facilitate power sharing with at least a second electronic device coupled thereto. The portable electronic device includes a battery power source, a first port adapted for connection to a first network connection and a second port adapted for connection to a second network connection. An input stage in the portable electronic device is connected to the first port. The input stage is operative to supply power received from the first network connection through the first port to the battery power source for recharging the battery power source. The portable electronic device further includes an output stage connected to the second port. The output stage is operative to supply power from the battery power source to the second network connection through the second port.