Battery Charging Voltage Synchronization to Reduce Power Loss
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Solution Overview
Problem
Existing battery charging technologies for portable electronic devices involve two voltage conversions, leading to power loss and inefficiency when charging one device from another, as both devices adjust voltage independently.
Innovation Solution
Establishing an electrical connection between two electronic devices to acquire real-time charging voltage information and control the output voltage of the charging device based on the charge state of the battery, reducing the need for two voltage conversions by synchronizing the charging voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both electronic devices independently adjust voltage during charging, then each device can maintain its own power management, but power loss increases due to two voltage conversions
Solution Approach 1:
The patent merges the voltage adjustment functions of both devices into a single coordinated operation. The charging device (second electronic device) performs voltage conversion based on real-time charging voltage information from the charged device (first electronic device), eliminating the need for the charged device to perform separate voltage conversion. This single-point voltage adjustment reduces power loss while maintaining adaptability through real-time information exchange.
Solution Approach 2:
The patent implements a feedback mechanism where the charged device monitors its battery charge state and communicates real-time charging voltage information to the charging device. The charging device uses this feedback to dynamically adjust its output voltage, optimizing charging efficiency and minimizing power loss during the charging process.
2Device complexity
If the charging device uses fixed voltage output, then the power management module is simplified, but charging efficiency decreases due to inability to adapt to battery charge state
Solution Approach 1:
The patent transforms the static fixed voltage output into a dynamic voltage adjustment system. The charging device continuously receives real-time charging voltage information from the charged device and adjusts its output voltage accordingly, allowing the system to adapt to changing battery charge states while maintaining relatively simple power management modules in both devices.
3Productivity
If real-time charging voltage information is exchanged between devices, then charging efficiency is optimized, but communication overhead and system complexity increase
Solution Approach 1:
The patent utilizes existing communication interfaces and protocols in electronic devices to exchange charging voltage information, rather than requiring dedicated communication hardware. This approach optimizes charging efficiency through real-time information exchange while minimizing the increase in system complexity by leveraging universal communication capabilities already present in modern electronic devices.
Data Source
AI summary
Methods and devices are disclosed for efficient power charging of a battery in one electronic device by another electronic device. In one embodiment, a method may include establishing an electrical connection between a first electronic device and a second electronic device; acquiring, by the second electronic device via the electrical connection, real-time charging voltage information of a battery in the first electronic device, wherein the real-time charging voltage information varies with a charge state of the battery in the first electronic device; and controlling by the second electronic device, during charging of the battery in the first electronic device by the second electronic device, an output voltage of the second electronic device to charge the battery of the first electronic device according to the real-time charging voltage information.