Multi-mode Charger Switch Module for Universal Protocol Adaptation
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Solution Overview
Problem
Conventional chargers for portable devices are not universally compatible across different manufacturers and regions, leading to charging incompatibilities due to varying charging conditions and protocols.
Innovation Solution
A multi-mode charger with a switch module that couples specific mode blocks to a peripheral bus or USB, allowing for different charging modes to be selected based on detected conditions, enabling charging of devices with diverse charging protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional charger is designed for a specific manufacturer's charging protocol, then it works reliably for that manufacturer's devices, but it cannot charge devices from other manufacturers with different charging protocols
Solution Approach 1:
The charger is divided into multiple mode blocks, each implementing a different charging protocol (e.g., Nokia charging mode, Samsung charging mode, China USB charging mode). The switch module selectively connects the appropriate mode block to the peripheral bus based on the detected device type, enabling multi-protocol support without requiring all protocols to be active simultaneously.
Solution Approach 2:
The charger is designed to perform multiple charging functions by supporting different charging protocols through the same physical interface. The mode blocks provide universal compatibility across different manufacturers (Nokia, Samsung, Chinese devices) while the switch module and control circuitry enable the charger to adapt its behavior to match the required protocol.
2Adaptability or versatility
If the charger supports multiple charging modes through multiple mode blocks, then it can charge various devices with different protocols, but the switch module must continuously switch between mode blocks which may cause instability
Solution Approach 1:
The control circuitry detects the portable device type and determines the appropriate charging mode before switching occurs. This preliminary detection and determination process ensures that the switch module transitions to the correct mode block in advance, avoiding unstable or frequent switching during the charging process.
Solution Approach 2:
The control circuitry acts as an intermediary between the device detection process and the switch module. It processes the detected device information, determines the appropriate charging protocol, and controls the switch module to connect the correct mode block, thereby stabilizing the switching operation and ensuring reliable charging.
3Object-generated harmful factors
If the switch module couples only the selected mode block to the peripheral bus, then it reduces interference between different charging modes, but it requires precise control to ensure the correct mode block is always connected
Solution Approach 1:
The control circuitry extracts and processes only the essential device identification information from the connected portable device to determine the appropriate charging mode. By focusing on key identifying features rather than analyzing all possible device parameters, the control circuitry simplifies the decision-making process while still achieving accurate mode selection and minimizing interference.
Data Source
AI summary
Multi-mode charger device for charging portable devices and methods of charging portable devices are described. In an embodiment, a multi-mode charger device has mode blocks respectively associated with modes of operation which are coupled to a switch module. The switch module is for coupling a selected one of the mode blocks to a peripheral bus and to decouple the mode blocks remaining from the peripheral bus. A first mode of the modes of operation is a pass through mode. A second mode of the modes of operation is a first charging mode. A third mode of the modes of operation is a second charging mode. The first charging mode and the second charging mode are different from one another.