Wireless Power Transmitter Dynamic Voltage Control
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Solution Overview
Problem
Existing wireless power transmitters lack efficient power control mechanisms, particularly in scenarios requiring quick charging, where the magnitude of external power needs to be adjusted dynamically to accommodate varying charging demands.
Innovation Solution
A wireless power transmitter with an output control signal generator that adjusts the external power by performing step-down operations and includes a wireless power generator capable of converting DC power into AC power for transmission, with a controller to manage the inverter and converter based on the received power magnitude, ensuring efficient power transmission to a wireless power receiver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the wireless power transmitter uses a fixed power input without dynamic control, then the system structure is simple, but the charging speed and power adaptability are insufficient for quick charging requirements
Solution Approach 1:
The patent implements dynamic power control by enabling the wireless power transmitter to receive variable external power (e.g., 5V or 9V DC) and dynamically adjust its operation based on the received power magnitude. The controller modifies transmission parameters in real-time to optimize charging speed while adapting to different power sources, transforming a static system into a dynamic one that responds to changing conditions.
Solution Approach 2:
The system changes operational parameters based on the magnitude of external power received. When higher power is detected, the transmitter adjusts its transmission parameters to enable faster charging. This parameter adaptation allows the system to achieve quick charging when available while maintaining compatibility with standard power sources, resolving the contradiction between charging speed and system complexity.
2Adaptability or versatility
If the wireless power transmitter dynamically adjusts power output based on external power magnitude, then power adaptability and charging efficiency are improved, but the control system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the controller continuously monitors the magnitude of external power received and adjusts the wireless power transmission accordingly. This closed-loop control enables the system to adapt to different power sources (5V, 9V, or other DC voltages) and optimize charging efficiency. The feedback-based approach provides high adaptability while keeping the control logic relatively simple through systematic decision-making.
3Power
If the wireless power transmitter is designed for high power transmission capability, then quick charging is enabled, but the system may be incompatible with standard power adapters
Solution Approach 1:
The system dynamically adapts its power transmission capability based on the external power available. Rather than being designed for a fixed high power level, the transmitter adjusts its operation to match the input power magnitude, enabling compatibility with standard power adapters while maintaining the capability for quick charging when higher power sources are connected.
Solution Approach 2:
The transmitter changes its operational parameters based on the detected external power magnitude. When connected to standard 5V adapters, it operates at appropriate power levels for compatibility. When connected to higher power sources (9V or above), it adjusts parameters to enable quick charging, thus achieving both high power capability and broad adaptability.
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
This solution enables efficient power control and quick charging by dynamically adjusting the power transmission based on the received DC power magnitude, enhancing the overall efficiency and adaptability of wireless power transfer.
Implementation Method 1
a wireless power generator configured to generate power to be wirelessly transmitted to a wireless power receiver from the external power received from the power adaptor controlled by the output control signal
Data Source
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AI summary
A wireless power transmitter for receiving external power from a power adaptor includes an output control signal generator configured to generate an output control signal from the external power, and supply the output control signal to the power adaptor; and a wireless power generator configured to generate power to be wirelessly transmitted to a wireless power receiver using the external power supplied by the power adaptor in response to the output control signal, and wirelessly transmit the generated power to the wireless power receiver.