USB-C PD Power Cable Voltage Negotiation for Multi-Function Links
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Solution Overview
Problem
The cinematography industry faces challenges in managing multiple cables for power, data, and video transmission, which increases weight, cost, and complexity in production environments.
Innovation Solution
A multifunctional USB-C Power Delivery (PD) connection system that integrates power, data, and video transmission capabilities into a single port, using a USB-C PD port and a power cable with a control circuit assembly to negotiate output voltages and provide secure connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate cables are used for power, data, and video transmission, then each function can be reliably transmitted, but the system complexity and number of cables increase
Solution Approach 1:
The patent combines power transmission, data transmission, and video transmission into a single USB-C PD connection system. The USB-C connector integrates multiple conductors that can simultaneously carry power at various voltages (5V, 9V, 12V, 15V, 20V, 28V, 36V, 48V) and data signals, eliminating the need for separate cables for each function.
Solution Approach 2:
The USB-C PD port is designed to perform multiple functions through a single connection interface. It can negotiate and provide different voltage levels for power delivery, transmit data bidirectionally, and support video output, making it a universal connector that replaces multiple specialized cables.
2Reliability
If multiple cables are used for different functions, then each connection can be optimized for its specific purpose, but the total weight increases
Solution Approach 1:
The system merges multiple cable functions into a single USB-C PD cable. By integrating power, data, and video transmission capabilities into one cable with multiple conductors, the total weight is significantly reduced compared to using separate optimized cables for each function.
Solution Approach 2:
The USB-C PD cable serves as a universal multi-functional cable that can handle power delivery at multiple voltage levels, data transmission, and video output simultaneously, replacing several specialized cables and reducing overall weight.
3Reliability
If multiple cables are used for power, data, and video, then each function can be independently managed, but the cost increases
Solution Approach 1:
The patent combines multiple cable functions into a single USB-C PD connection system, reducing the total number of components that need to be manufactured, inventoried, and assembled. This consolidation lowers manufacturing costs while maintaining the ability to independently manage power, data, and video functions through protocol control.
Solution Approach 2:
The USB-C PD connector provides a universal interface that handles power, data, and video through a single connection point, reducing the need for multiple specialized connectors and cables, thereby lowering overall system cost.
Data Source
AI summary
A system for providing power from a USB-C PD connection includes a USB-C power delivery (PD) port. The USB-C PD port is configured to provide a number of output voltages. A power cable is configured to be electrically connected with the USB-C PD port. The power cable is configured to transmit data and at least one output voltage of the numerous output voltages to a peripheral device. A housing is coupled with the cable. The housing includes a USB-C connector configured to be removably coupled with the USB-C PD port to electrically connect the power cable with the USB-C PD port. A control circuit assembly is electrically connected with the housing. The control circuit assembly is configured to negotiate an output voltage of the numerous available output voltages between the peripheral device and the USB-C PD port.