Dual-Mode Wireless Power Controller for Mobile Device Sharing
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Solution Overview
Problem
Conventional wireless power transfer systems require dedicated transmitter and receiver devices, necessitating a power outlet for the transmitter, which limits mobility and flexibility in charging and power sharing between devices.
Innovation Solution
A configurable power share controller module that includes switches, sensors, and a controller, enabling a single device to operate in both power transmitting and receiving modes, allowing for wireless power sharing between devices without the need for a dedicated power outlet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a dedicated wireless power transmitting device is used, then power can be transmitted to receiving devices, but the transmitter must be tethered to a wall plug or power outlet, limiting mobility
Solution Approach 1:
The wireless device is designed with dual functionality to operate as both a power receiver (with rectifier circuitry) and a power transmitter (with inverter circuitry). This allows the device to receive power from one source and transmit it to another device, eliminating the need for a dedicated wall-plugged transmitter and enabling mobile power sharing between devices.
2Power
If a dedicated wireless power transmitting device is used, then power can be transmitted to receiving devices, but a power outlet is required, reducing flexibility in charging scenarios
Solution Approach 1:
The device can function as both power receiver and power transmitter, enabling flexible charging scenarios where any device can charge any other device wirelessly without requiring access to a power outlet. This multi-functionality greatly enhances adaptability to different charging situations.
Solution Approach 2:
The patent combines the power receiving circuitry (rectifier) and power transmitting circuitry (inverter) into a single wireless device. This merging of functions allows the device to both receive and transmit power, creating a versatile power sharing system that eliminates the need for separate dedicated transmitters and outlets.
3Power
If separate dedicated transmitter and receiver devices are used, then wireless power transfer can be achieved, but device complexity increases
Solution Approach 1:
The patent combines the power receiving circuitry (rectifier) and power transmitting circuitry (inverter) into a single wireless device. This merging of functions allows the device to both receive and transmit power, creating a versatile power sharing system that eliminates the need for separate dedicated transmitters and receivers, thereby reducing overall system complexity.
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 wireless charging and power transmission between devices, such as smartphones and tablets, providing flexibility in power management and operation, including charging from a battery or external power source, and allowing devices to share power on the go.
Implementation Method 1
power is transferred by magnetic fields using magnetic inductive coupling between two coils of wire: a transmitter coil and a receiver coil. An alternating current (AC) through the transmitter coil creates an oscillating magnetic field, which passes through the receiving coil and induces an AC current in the receiver
Data Source
AI summary
A wireless power transmitting/receiving device includes a power transmitting/receiving element, a plurality of switches, a current sensor and a controller. Each of the plurality of switches has a control terminal and a conduction terminal, with the conduction terminal being coupled to the power transmitting/receiving element. The current sensor senses a current through the power transmitting/receiving element, and the controller is configured to control the plurality of switches based on the sensed current.