Single-Pin Control Circuit for Multi-Device Power Delivery
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Solution Overview
Problem
Existing power delivery systems require multiple control circuits to connect multiple devices, leading to increased design costs, high voltage/high current components, thicker cables, and heat issues when supplying power to multiple peripheral electronic devices.
Innovation Solution
An electronic device with a power supply circuit and a control circuit that can recognize and manage power delivery to multiple peripheral devices through a single pin, optimizing charging speed without increasing design costs, using USB Type-C interfaces and Power Delivery (PD) protocols to efficiently distribute power across multiple connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple control circuits are used to connect multiple devices, then power delivery capability is improved, but design cost increases
Solution Approach 1:
The patent combines multiple control functions into a single control circuit that can manage multiple peripheral devices through a single pin. This single control circuit performs the functions that would traditionally require multiple separate control circuits, thereby reducing design cost while maintaining multi-device power delivery capability.
Solution Approach 2:
The control circuit is designed with universal functionality to handle multiple devices through a single interface. It can recognize and manage power delivery to different types of peripheral devices (USB devices, audio devices, video devices) through one pin, making the control circuit multi-functional rather than requiring dedicated circuits for each device type.
2Power
If high voltage/high current components are used to supply power to multiple devices, then power delivery capability is improved, but heat generation increases
Solution Approach 1:
The power supply system dynamically adjusts voltage and current levels based on the specific needs of connected devices. Rather than continuously providing high voltage/high current, the system monitors device requirements and delivers appropriate power levels, reducing unnecessary heat generation while maintaining the capability to deliver high power when needed.
Solution Approach 2:
The control circuit incorporates feedback mechanisms to monitor the power requirements of connected devices and adjust power delivery accordingly. This feedback control ensures that high voltage/high current is only supplied when actually needed by the devices, preventing excessive heat generation during normal operation.
3Power
If cable thickness is increased to handle high current, then power delivery capability is improved, but device portability decreases
Solution Approach 1:
The system changes electrical parameters (voltage and current levels) dynamically based on device requirements. By optimizing the balance between voltage and current delivery, the system can provide high power delivery capability without consistently requiring high current, thereby allowing the use of thinner, lighter cables while maintaining the ability to deliver sufficient power when needed.
Data Source
AI summary
Disclosed is an electronic device. The electronic device may include a plurality of interfaces each of which is connected to one peripheral electronic device in a wired manner to deliver power to the connected peripheral electronic device, a power supply circuit connected to the plurality of interfaces, and a control circuit including a plurality of pins each connected to one interface to allow the power supply circuit to supply power to the plurality of interfaces. In addition, various embodiments understood from the disclosure are possible.