Power Delivery Unit Charging Control via Pre-defined Configuration
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Solution Overview
Problem
Existing charging systems require frequent communication between the power delivery unit and mobile device to dynamically change charging voltage or current, leading to increased communication loading and prolonged charging times due to limited current ratings.
Innovation Solution
A charging control method that allows the power delivery unit to regulate DC output voltage and current based on a pre-defined power delivery configuration, reducing the need for frequent communication by enabling adaptive changes in charging parameters without direct mobile device intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the power delivery unit uses a fixed current rating (e.g., 500mA), then communication loading is reduced, but charging time increases significantly
Solution Approach 1:
The patent implements dynamic current rating selection by allowing the power delivery unit to switch between multiple current ratings (e.g., 500mA, 1.5A, 3A, 5A) based on real-time communication with the mobile device. The mobile device sends a selected current rating to the power delivery unit, which then adjusts its output accordingly, enabling both fast charging when needed and low communication loading when using fixed ratings.
Solution Approach 2:
The system changes the electrical parameter of current rating dynamically. Multiple current rating options are predefined in the power delivery unit, and the appropriate rating is selected based on communication with the mobile device. This parameter change enables the system to adapt between different charging scenarios without requiring complex real-time control algorithms.
2Adaptability or versatility
If the power delivery unit dynamically changes output voltage or current, then charging flexibility is improved, but communication loading increases due to frequent instructions from mobile device
Solution Approach 1:
The mobile device pre-selects an appropriate current rating from multiple predefined options and communicates this selection to the power delivery unit before charging begins. This preliminary action allows the power delivery unit to configure its output parameters in advance, avoiding the need for frequent communication during the charging process while still achieving adaptive charging.
Solution Approach 2:
The power delivery unit is equipped with built-in multiple current rating capabilities and autonomously switches between different output configurations based on the pre-selected current rating. This self-service mechanism eliminates the need for continuous mobile device intervention, reducing communication loading while maintaining charging flexibility.
3Productivity
If the power delivery unit uses high current rating (e.g., 5A), then charging speed is improved, but safety risks and hardware requirements increase
Solution Approach 1:
The system dynamically selects the appropriate current rating based on real-time communication between the mobile device and power delivery unit. The mobile device assesses its own charging requirements and safety constraints, then selects the most appropriate current rating from the available options (500mA, 1.5A, 3A, 5A). This dynamic selection ensures that high current is only used when the mobile device can safely handle it, while lower currents are used when safety or battery state requires it.
Data Source
AI summary
The present invention provides a charging control method for controlling a power delivery unit to supply output power to a mobile unit, wherein the output power includes a DC output voltage and/or a DC output current. The method includes: receiving a power delivery configuration by the power delivery unit, wherein the power delivery configuration at least defines at least one execution time period and plural voltage(s) and/or current(s); the power delivery unit regulates the DC output voltage and/or DC output current according to the power delivery configuration during the at least one execution time period such that the DC output voltage and/or DC output current correspond to the power delivery configuration.