Multi-Output Power Adapter with DC-to-DC Converter and Relay Control
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Solution Overview
Problem
Conventional power adapters do not provide multiple DC voltage levels for powering multiple electronic devices, leading to the need for separate adapters for each device, which is cumbersome and confusing, especially when traveling.
Innovation Solution
A power adapter with a DC-to-DC converter and multiple outputs that can supply different DC voltage levels to multiple electronic devices, optionally integrated into a connector cord, and includes relays to ensure compatibility and safe power delivery based on manufacturer criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a user purchases a separate adapter for each electronic device, then each device can be powered with its specific voltage requirement, but the user must carry multiple adapters which increases bulk and complexity
Solution Approach 1:
The power adapter is designed with multiple output ports that can simultaneously provide different DC voltage levels (e.g., 5V, 12V, 19V) to support multiple types of electronic devices including laptops, tablets, and smartphones. This multi-functional design allows a single adapter to replace multiple device-specific adapters, resolving the contradiction between voltage compatibility and device complexity
Solution Approach 2:
The adapter incorporates intelligent control circuitry that dynamically detects the connected device type and automatically adjusts the output voltage and current parameters for each port. This dynamic adaptation capability enables the adapter to provide appropriate power settings for different devices without requiring manual configuration or multiple fixed-voltage adapters
2Adaptability or versatility
If a user carries multiple power adapters for different devices, then each device's specific power requirements can be met, but the weight and portability are reduced
Solution Approach 1:
The patent combines multiple power conversion circuits and output ports into a single integrated adapter unit. By merging the functionality of multiple separate adapters into one consolidated device, the total weight carried by the user is significantly reduced while maintaining the ability to support various device power requirements through intelligent voltage selection and multiple output ports
3Adaptability or versatility
If multiple adapters are kept in a stationary location, then device-specific power needs can be met, but it becomes confusing to manage and locate the correct adapter
Solution Approach 1:
The adapter incorporates automatic device detection and identification circuitry that recognizes the connected device type through control lines or communication protocols. The system then automatically selects and configures the appropriate voltage output without requiring the user to manually identify or select the correct adapter, thereby eliminating the confusion of managing multiple adapters while maintaining precise voltage matching
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
Enables power supply to multiple electronic devices using a single adapter, reducing the need for multiple adapters and ensuring safe voltage delivery, thus enhancing convenience and reducing bulk when traveling.
Implementation Method 1
a rectifier operatively connected to the power input and configured to convert the input voltage to a first voltage
Implementation Method 2
a power converter operatively connected to the rectifier and configured to convert the first voltage to a second voltage different than the first voltage
Data Source
AI summary
An apparatus for providing power to an electronic device may include a power input configured to receive an input voltage from a power supply, and a rectifier operatively connected to the power input and configured to convert the input voltage to a first voltage. The rectifier may further be configured to transmit the first voltage to a first power output operatively connected to the rectifier. The apparatus may further include a power converter operatively connected to the rectifier and configured to convert the first voltage to a second voltage different than the first voltage and a first relay operatively connected to the rectifier to selectively prevent the first voltage from being transmitted through the first power output. The power converter may further be configured to transmit the second voltage to a second power output operatively connected to the power converter.