Wireless Power Receiver Host Control Interface
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless power transfer systems lack efficient communication and control mechanisms between wireless power receivers and hosts, limiting their functionality and flexibility in power management and device authentication.
Innovation Solution
A wireless power receiver with a host control interface that includes specific contacts for clock, data, power, interrupt, and enable signals, along with 16-bit internal registers, enables bi-directional communication and control, allowing for identification, operational parameter setting, authentication, and firmware upgrades.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If inductive power coupling is implemented for wireless charging, then convenience of charging is improved, but communication and control mechanisms between receiver and host become insufficient
Solution Approach 1:
The patent combines power transfer and communication functions into a single inductive coupling interface. The host control interface uses the same inductive coupling mechanism to both transfer power and communicate control signals, authentication data, and operational parameters between the wireless power receiver and host device, eliminating the need for separate communication hardware.
Solution Approach 2:
The inductive coupling interface is designed to serve multiple functions simultaneously: power transfer, bidirectional communication, device authentication, parameter configuration, and firmware updates. This multi-functional approach resolves the contradiction by making the power coupling interface universally capable of handling both energy and information transfer.
2Adaptability or versatility
If a host control interface with multiple contacts is added to enable bidirectional communication, then communication capability is improved, but device complexity increases
Solution Approach 1:
Multiple communication functions (power transfer, data communication, control signals, authentication) are merged into a single inductive coupling interface. Instead of adding separate physical contacts for each function, the patent uses the existing power transfer interface to carry both energy and modulated data signals, thereby improving communication capability without increasing physical interface complexity.
Solution Approach 2:
The patent introduces a host control interface as an intermediary layer that manages multiple functions through a unified inductive coupling mechanism. This intermediary handles signal modulation, demodulation, and protocol management, allowing complex bidirectional communication to be achieved through the existing power transfer interface without requiring additional physical contacts.
3Ease of operation
If inductive coupling is used for power transfer, then wired connection is eliminated, but control and authentication mechanisms become limited
Solution Approach 1:
The host control interface acts as an intermediary that implements reliable control and authentication mechanisms over the wireless inductive coupling interface. It manages signal modulation, error detection, device identification, and authentication protocols, thereby ensuring reliable control and security functions are maintained despite the wireless nature of the connection.
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
Facilitates efficient power transfer, communication, and device authentication, enhancing the functionality and flexibility of wireless power transfer systems by enabling precise control and management between the wireless power receiver and host devices.
Implementation Method 1
Inductive power coupling allows energy to be transferred from a power supply to an electric load without a wired connection therebetween. An oscillating electric potential is applied across a primary inductor. This sets up an oscillating magnetic field in the vicinity of the primary inductor. The oscillating magnetic field may induce a secondary oscillating electrical potential in a secondary inductor placed close to the primary inductor.
Data Source
AI summary
A wireless power receiver, configured to receive power from a wireless power outlet and to communicate with a host for providing electrical power thereto, is provided comprising a secondary inductive coil configured to receive power from a primary coil of the wireless power outlet, and a host control interface configured to facilitate communication between the wireless power receiver and the host. The host control interface comprises contacts, one or more information-carrying contacts configured to conduct at least one of a clock and a data signal between the wireless power receiver and the host, supply input and power supply ground contacts configured to cooperate to provide current between the wireless power receiver and the host, an interrupt-signal contact configured to carry an INTERRUPT signal from the wireless power receiver and the host, and an enable-signal contact configured to carry an ENABLE signal from the host to the wireless power receiver.