Multi-Winding Feedback Converter for Compact Power Adapter
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Solution Overview
Problem
Current AC/DC power adapters are bulky, limited in functionality, and costly, failing to provide additional value beyond charging and powering mobile devices, while occupying substantial space and requiring multiple ports.
Innovation Solution
A highly integrated power adapter with a processor, multi-winding feedback converter, and power conversion control circuit that converts AC to DC power, recognizes device loads, and integrates data transfer, memory, and wireless connectivity, allowing for simultaneous power and data delivery through a single port, and includes features like touchpad input and encrypted data backup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional AC/DC power adapters are used, then power conversion function is provided, but device size becomes bulky and occupies substantial space
Solution Approach 1:
The patent combines multiple previously separate functions (power conversion, data transfer, audio output, video output, and storage) into a single integrated power adapter device. The AC/DC converter housing contains all these components, eliminating the need for multiple separate devices and reducing overall space occupation while maintaining all required functionalities.
Solution Approach 2:
The power adapter is designed as a universal device that can simultaneously perform power conversion, data transfer, audio playback, video output, and file storage. This multi-functionality allows a single device to replace multiple separate gadgets, addressing the contradiction by providing extensive adaptability within a compact form factor.
2Adaptability or versatility
If multiple ports are integrated for data transfer and power delivery, then functionality is enhanced, but device complexity increases
Solution Approach 1:
The USB Type-C port is designed to handle multiple functions (power delivery, data transfer, audio, video) through a single interface. This universal port approach reduces the number of separate ports needed while maintaining comprehensive adaptability, directly addressing the contradiction between functionality and complexity.
3Volume of moving object
If power conversion circuitry is integrated with data transfer capabilities, then space is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent integrates the AC/DC power conversion circuitry, USB Type-C controller, audio processing, video processing, and storage memory into a single housing unit. This consolidation reduces the overall device volume while the modular architecture and use of standard components (like the USB Type-C interface) help manage manufacturing complexity.
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 solution reduces device size, extends battery life, eliminates the need for multiple ports, and provides seamless encrypted data backup during charging, enhancing user experience and device functionality while minimizing physical size and cost.
Implementation Method 1
a multi-winding feedback converter configured to receive an AC power input and configured to convert the AC power input to a DC power output
Data Source
AI summary
A power adapter for supplying electrical power to a device includes a processor, an interface for power transfer with the device, a multi-winding feedback converter to receive an AC power input and to convert the AC power input to a DC power output over the interface for the device, and a power conversion control circuit. A voltage level of the DC power output is set based on a reference voltage produced by the processor. The power conversion control circuit receives the reference voltage and a control signal based on the voltage level of the DC power output to generate switch control signals to control switches of the multi-winding feedback converter to control the voltage level of the DC power output. The processor recognizes a load associated with the device and sets, using the reference voltage, the DC power output based on the recognized load.