Universal Power Delivery Cable With Embedded Controller
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Solution Overview
Problem
Existing USB power delivery solutions require both the host and electronic device to have power delivery functions, limiting charging capabilities for devices without built-in power delivery functionality.
Innovation Solution
A universal power delivery cable equipped with a power delivery controller that detects the absence of power delivery function in an electronic device and mimics it, allowing a host with power delivery function to charge the device according to specified power delivery standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a host with power delivery function charges an electronic device, then charging capability is improved, but the electronic device must have power delivery function which limits compatibility
Solution Approach 1:
The patent introduces a USB cable with an embedded power delivery controller as an intermediary component between the host and electronic device. This controller detects whether the electronic device supports power delivery function and dynamically adjusts the communication protocol and power transmission mode. When the device lacks power delivery function, the controller enables the host to charge the device using standard USB charging protocols, thus resolving the compatibility issue without requiring modifications to the electronic device itself.
2Power
If power delivery function is implemented in both host and device, then charging speed and efficiency are improved, but device complexity increases
Solution Approach 1:
The patent extracts the power delivery control functionality from the electronic device and relocates it to the USB cable's embedded controller. This allows the host to provide high-power charging capabilities while the electronic device itself remains simple and does not require power delivery function implementation. The cable's controller handles all power negotiation and protocol conversion, enabling high-power charging without increasing device complexity.
3Adaptability or versatility
If standard USB charging protocol is used, then compatibility is improved, but charging speed and power delivery capability are reduced
Solution Approach 1:
The patent implements dynamic protocol switching in the USB cable's power delivery controller. The controller continuously monitors the communication capability of the connected electronic device and dynamically adjusts the charging protocol accordingly. When a device with power delivery function is detected, the controller switches to the high-speed power delivery protocol for fast charging. When a standard USB device is detected, it automatically falls back to standard USB charging protocols, thus achieving both high power capability and broad compatibility through dynamic adaptation.
Data Source
AI summary
A universal power delivery cable includes a first connector, a second connector, and a power delivery controller. The first connector is used for coupling a host, wherein the host has a power delivery function. The second connector is used for coupling an electronic device. When the first connector is coupled the host, the second connector is coupled the electronic device, and the electronic device does not have the power delivery function, the power delivery controller makes the electronic device imitate to have the power delivery function. After the power delivery controller makes the electronic device imitate to have the power delivery function, the host charges the electronic device according to a specification of the power delivery function and a specification of the electronic device.