Bidirectional Transceiver Coil Control for Reliable Wireless Power
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Solution Overview
Problem
Existing wireless power transfer systems are limited by the need for interconnecting wires, which restricts mobility and requires frequent battery replacement, limiting the continuous transmission of power.
Innovation Solution
A wireless power transceiver device with a magnetic interfacing unit, a controller, and a bi-directional driver that can transmit and receive AC signals at different frequencies through transceiver coils, allowing for wireless power transfer independent of wireless charging standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contact based power transfer systems with interconnecting wires are used, then power can be transferred reliably, but the system becomes bulkier and heavier
Solution Approach 1:
The patent replaces the mechanical contact-based wire system with a wireless electromagnetic field-based power transfer system. The transmitter generates electromagnetic fields that couple with receiver coils in the device, eliminating the need for physical interconnecting wires and thereby reducing system weight while maintaining power transfer functionality.
Solution Approach 2:
The patent extracts and removes the interconnecting wires from the power transfer system. By eliminating the wire component entirely and replacing it with wireless electromagnetic coupling, the system achieves weight reduction while preserving the essential power transfer function through a different physical mechanism.
2Duration of action of stationary object
If an external power source with interconnecting wires is used, then continuous power supply is achieved, but mobility is restricted
Solution Approach 1:
The patent replaces the mechanical wire connection system with wireless electromagnetic field coupling. This substitution eliminates the physical constraint of wires, allowing the device to move freely within the electromagnetic field range while maintaining continuous power supply through field-based energy transfer.
Solution Approach 2:
The patent introduces electromagnetic fields as an intermediary medium for power transfer. Instead of direct wire connections, the transmitter generates electromagnetic fields that act as a mediator to transfer power wirelessly to the receiver, enabling mobility while maintaining continuous power supply through field coupling.
3Ease of operation
If an internal battery is used as power source, then mobility is maintained, but power supply duration is limited by battery capacity
Solution Approach 1:
The patent enables continuous power transfer by maintaining persistent electromagnetic field coupling between the transmitter and receiver. The transmitter can continuously generate electromagnetic fields to transfer power, eliminating the need for battery recharging or replacement and extending the effective power supply duration indefinitely as long as the transmitter is active.
Solution Approach 2:
The patent allows the receiver device to continuously harvest power from the electromagnetic fields generated by the transmitter without needing its own large-capacity battery. The device serves itself by continuously extracting energy from the external electromagnetic field, effectively extending its operational duration without carrying heavy battery packs.
4Ease of operation
If wireless power transfer without wires is implemented, then mobility is enhanced, but power transfer reliability may be affected
Solution Approach 1:
The patent incorporates feedback mechanisms where the receiver detects the strength and quality of electromagnetic field coupling and communicates this information back to the transmitter. The transmitter adjusts its field generation parameters based on this feedback to maintain optimal power transfer, ensuring reliability even as the device moves within the electromagnetic field range.
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 transmission and reception of power without interconnecting wires, enhancing mobility and continuous power supply by allowing devices to charge or transfer power independently of specific wireless charging standards.
Implementation Method 1
a magnetic interfacing unit including at least one transceiver coil... transmitting, by a bi-directional driver, at least one of a first AC signal having a first frequency and a second AC signal having a second frequency different from the first frequency through at least one transceiver coil
Data Source
AI summary
A wireless power transceiver (WPT) device (102) is disclosed. The WPT device (102) includes an energy module (110) and a magnetic interfacing unit (114) comprising a transceiver coil (128). Further, the WPT device (102) includes a controller (116) configured to generate one of a first control signal and a second control signal based on at least one first parameter of the energy module (110) and at least one second parameter of one of a plurality of external devices (104). Also, the WPT device (102) includes a bi-directional driver (112) configured to transmit at least one of a first AC signal and a second AC signal through the transceiver coil (128) if the first control signal is received from the controller (116), and receive at least one of the first AC signal and the second AC signal if the second control signal is received from the controller (116).