Wireless Power Transmitting Circuit Auxiliary Power Generation
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Solution Overview
Problem
Conventional wireless power transmission devices face issues with stable auxiliary power generation, leading to over-discharge of batteries and increased maintenance costs, as they rely on external batteries and do not efficiently manage power transmission.
Innovation Solution
A power generating method and device that selectively switches the power transmitting circuit between enabled and disabled states, using the received power to generate auxiliary power only when transmission is successful, reducing power loss and eliminating the need for external batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external batteries are used to generate auxiliary power in wireless power transmission devices, then auxiliary power can be provided to internal components, but the batteries suffer from over-discharge problems and require manual maintenance
Solution Approach 1:
The system uses itself to generate auxiliary power by extracting energy from the transmitted power signal. The power receiving circuit converts electromagnetic energy to electrical energy, and the auxiliary power generation circuit extracts power from this converted energy to supply internal components, eliminating the need for external batteries and manual maintenance.
Solution Approach 2:
The transmitted power signal serves dual purposes: it provides the main power transmission function and simultaneously serves as the energy source for generating auxiliary power. The same electromagnetic field that transmits power to the load also enables the auxiliary power generation circuit to operate, eliminating the need for separate battery systems.
2Reliability
If the power transmitting circuit is continuously enabled to ensure auxiliary power generation, then stable auxiliary power is provided, but power loss increases when power transmission is not needed
Solution Approach 1:
The system dynamically adjusts the power transmitting circuit state based on real-time power reception status. When power is successfully received, the circuit remains enabled to maintain auxiliary power generation. When power transmission fails or is not needed, the circuit is disabled to prevent energy loss, achieving adaptive operation that balances reliability and efficiency.
Solution Approach 2:
The system implements feedback control by monitoring whether power is successfully received by the power receiving circuit. This feedback information controls the enabling/disabling state of the power transmitting circuit, ensuring that the circuit operates only when necessary for both main power transmission and auxiliary power generation, thereby minimizing energy loss while maintaining reliability.
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
The method ensures stable auxiliary power generation by continuously enabling the power transmission when power is received, reducing battery discharge and maintenance costs, while minimizing power loss during unsuccessful transmission attempts.
Implementation Method 1
The power transmitting circuit and the power receiving circuit are electromagnetically coupled with each other. When the power transmitting circuit is in the enabled state, the power transmitting circuit emits a first power and the power receiving circuit receives the first power and converts the first power into a second power
Data Source
AI summary
A power generating method for a wireless power transmission device includes the following steps. Firstly, a power transmitting circuit is switched between an enabled state and a disabled state. When the power transmitting circuit is in the enabled state, the power transmitting circuit emits a first power and the power receiving circuit converts the first power into a second power. Then, the second power is converted into an output power, and the second power is converted into an auxiliary power. If the first power is not received by a power receiving circuit, the above steps are repeated. If the first power is received by the power receiving circuit, the power transmitting circuit is continuously in the enabled state, so that the auxiliary power is continuously generated.