Reverse Charging Switch Control for Variable Current Output
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Solution Overview
Problem
Existing electronic devices with reverse charging functions are limited to a fixed, small output charging current, preventing the ability to provide larger currents when needed.
Innovation Solution
Incorporation of a switch module controlled by a control module to dynamically switch between on and off states, allowing the device to output varying currents based on required charging modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed charging mode is used in reverse charging, then the device structure is simple, but the output charging current is limited to small fixed values (e.g., 0.5A) and cannot provide larger currents when needed
Solution Approach 1:
The patent implements dynamic charging mode switching by using a control module that detects connection types (wireless or wired) and automatically adjusts the charging current output. The first switch module dynamically changes the output current between a first current (for wireless charging) and a second current (for wired charging), transforming a static fixed-current system into a dynamic adaptive system that resolves the contradiction between current output capability and device complexity
Solution Approach 2:
The patent changes the electrical parameter (output current) based on connection type detection. When wired connection is detected, the control module switches to output a second current (larger current); when wireless connection is detected, it outputs a first current (smaller current). This parameter change approach enables the device to provide larger currents when needed while maintaining simple operation for users, resolving the contradiction between adaptability and complexity
2Adaptability or versatility
If the first switch module is always in the on state, then the device can output larger current, but it cannot adapt to different charging modes requiring different current levels
Solution Approach 1:
The control module implements feedback control by detecting the connection type (wired or wireless) and using this information to determine the appropriate charging current output. The detection result feeds back to the control module, which then adjusts the switch module state accordingly, enabling the system to adapt to different charging modes while providing appropriate current levels for each mode
Solution Approach 2:
The switch module transitions from a static state to a dynamic state controlled by the control module. The module can switch between on state (for larger current in wired mode) and off state (for smaller current in wireless mode), enabling the system to provide different current levels adaptively based on connection type, resolving the contradiction between power output and mode adaptation
Data Source
AI summary
An electronic device including a first switch module, a first electrical connection terminal, a second electrical connection terminal, and a control module. The first switch module is electrically connected between the first electrical connection terminal and the second electrical connection terminal, the first electrical connection terminal is configured to electrically connect to a third electrical connection terminal of a second electronic device, and the second electrical connection terminal is configured to electrically connect to a fourth electrical connection terminal of the second electronic device. The control module is connected to the first switch module to control the first switch module to switch between an on state and an off state.