Power Adapter Assembly Resonant Circuit Topology Efficiency
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Solution Overview
Problem
Existing power adapters for battery-powered electrical devices often lack efficiency and protection features, such as high efficiency in power delivery and protection against contaminants and overloads, while also requiring multiple adapters for different voltage requirements.
Innovation Solution
A power adapter assembly that includes a housing with an electrical circuit capable of receiving AC power and outputting DC power at multiple voltages, featuring a resonant circuit topology for high efficiency, a sealed airflow path for protection against contaminants, and a ground fault circuit interrupter, which can provide continuous and peak power outputs while maintaining communication and control interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a power adapter uses a resonant circuit topology for high efficiency power delivery, then power delivery efficiency is improved (up to 99%), but device complexity increases due to the specialized circuit design
Solution Approach 1:
The patent employs a resonant circuit topology that operates at specific frequency parameters to achieve extremely high power delivery efficiency (up to 99%). By tuning the resonant frequency and impedance parameters of the circuit, the system minimizes energy losses while maintaining manageable complexity through parameter optimization rather than structural complexity
2Adaptability or versatility
If a power adapter provides multiple voltage outputs (15V and 80V) to accommodate different device requirements, then adaptability is improved, but device complexity increases due to multiple electrical circuits
Solution Approach 1:
The power adapter is designed with a multi-functional electrical circuit capable of outputting multiple voltage levels (15V for communication and 80V for power delivery) through a single unified circuit architecture. This universal circuit design eliminates the need for separate adapters for different voltage requirements, reducing overall system complexity while maintaining adaptability
Solution Approach 2:
The patent combines communication and power delivery functions into a single integrated adapter unit. The electrical circuit merges multiple output capabilities (15V communication interface and 80V power interface) into one device, allowing simultaneous or selective operation based on device needs, thereby reducing the number of separate components required
3Object-affected harmful factors
If a power adapter uses a sealed airflow path for cooling, then protection against contaminants is improved, but heat dissipation efficiency may worsen due to restricted airflow
Solution Approach 1:
The patent employs a sealed airflow path design where controlled airflow is directed through specific channels that are sealed to prevent contaminant ingress. The sealing structure allows predetermined airflow paths for cooling while blocking unauthorized access by contaminants, achieving both protection and thermal management
Solution Approach 2:
The sealed airflow path acts as an intermediary system between the internal electronic components and the external environment. It mediates the conflict by allowing controlled air flow for heat dissipation while simultaneously blocking contaminant entry, using sealed channels as the intermediary structure that satisfies both requirements
4Reliability
If a power adapter includes authentication and communication interfaces between adapter and device, then reliability is improved through protection against unauthorized use, but device complexity increases due to additional control circuits
Solution Approach 1:
The patent integrates authentication, communication, and power control functions into a unified control interface. The 15V communication line serves multiple purposes: establishing authentication, enabling bidirectional communication between adapter controller and device controller, and coordinating power delivery. This merging of functions reduces the need for separate dedicated circuits for each function
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 adapter assembly achieves up to 99% efficiency in power delivery, protects against contaminants and overloads, and supports multiple voltage requirements, ensuring reliable operation and safety for battery-powered electrical devices.
Implementation Method 1
the electrical circuit having a resonant circuit topology operable to create electrical resonance (e.g., for extremely high efficiency (up to about 99% efficiency, or with less than about 1% losses) in delivery of power from the adapter assembly to the electrical device)
Implementation Method 2
an airflow path between the inlet and the outlet and through the compartment, air flow through the airflow path being operable to cool the adapter (e.g., components of the electrical circuit)
Data Source
AI summary
A power adapter assembly and an electrical system. The power adapter assembly is operable to supply power to an electrical device. The power adapter assembly includes a power box including a housing, an electrical circuit supported by the housing, the electrical circuit being operable to receive as input AC power and to output DC power, an adapter controller operable to control the adapter assembly; and an adapter electrically connected to the power box, the adapter including an adapter engagement portion connectable to a device engagement portion to connect the adapter to the electrical device, DC power being output from the electrical circuit through the adapter to the electrical device to power the load, when the adapter engagement portion is connected to the device engagement portion, a communication interface between the adapter assembly and the electrical device being active even when power is not being output to power the load.