Variable Output Power Delivery Device Using AC Coupled Feedback Control
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Solution Overview
Problem
Existing Power Delivery (PD) devices lack the ability to control variable output voltage values and available output current capacities, limiting their adaptability to different electronic devices with varying power requirements.
Innovation Solution
A PD device comprising a DC/DC converter with a primary-side controller and a secondary-side controller connected through AC coupling, allowing feedback of electric power information to control the output voltage and current capacity, enabling variable output settings based on load requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed output voltage and current capacity are provided, then the power delivery device is simple to manufacture, but it cannot adapt to different electronic devices with varying power requirements
Solution Approach 1:
The patent implements dynamic output voltage and current capacity adjustment by using controllers that receive feedback signals from connected electronic devices and modify power delivery parameters in real-time. The power delivery device transitions from a static fixed-output design to a dynamic adjustable-output design, enabling adaptation to different device requirements while maintaining manageable complexity through automated control mechanisms.
Solution Approach 2:
The patent changes the electrical parameters (voltage and current capacity) of the power delivery device based on feedback information from connected devices. By implementing multiple selectable output voltage levels (e.g., 5V, 12V, 20V) and current capacities, the system can optimize power delivery for different device types without requiring separate power adapters for each device.
2Adaptability or versatility
If multiple fixed power delivery levels are provided, then adaptability to different devices is improved, but the device complexity and control requirements increase
Solution Approach 1:
The patent employs feedback mechanisms where the power delivery device receives information from connected electronic devices about their power requirements and automatically adjusts its output parameters accordingly. This automated feedback loop eliminates the need for manual configuration by users, making the system easy to operate while providing multiple power delivery levels and adapting to device needs automatically.
Data Source
AI summary
The PD device includes: a DC/DC converter disposed between an input and an output; a primary-side controller configured to control an input current of the DC/DC converter; and a secondary-side controller connected with AC coupling to the output, and configured to feed back electric power information of the output to the primary-side controller. The primary-side controller varies an output voltage value and an available output current capacity of the DC/DC converter by controlling the input current on the basis of the electric power information fed back from the secondary-side controller.