Dual Protocol Charger for Fast Battery Current Adjustment
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Solution Overview
Problem
Existing charging systems face delays in controlling charge current magnitudes, particularly in chargers with long adjustment cycles, which can damage battery packs and fail to suitably charge those requiring short adjustment cycles.
Innovation Solution
A charger with a current outputter and dual charge controllers, using different communication protocols to quickly acquire and adjust charge current magnitudes based on the type of connected device, allowing for reduced communication volume and faster information transfer, enabling prompt changes in charge current.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a first communication protocol with large communication volume is used to acquire charge current information, then the information transmission is comprehensive and accurate, but the communication time is long causing delays in charge current control
Solution Approach 1:
The patent applies partial action by using a second communication protocol that transmits only essential charge current information (partial information) when time is critical, rather than transmitting all comprehensive device information. This allows the charger to quickly adjust charge current based on minimal necessary data, resolving the contradiction between information completeness and communication speed.
Solution Approach 2:
The patent changes the communication parameter (protocol selection) based on the charging situation. When fast adjustment is needed, it switches to the second protocol with smaller communication volume; when comprehensive information is needed, it uses the first protocol. This dynamic parameter change resolves the time-information contradiction.
2Device complexity
If a charger with long adjustment cycle is used, then the charger is simple and stable, but delays occur in charge current magnitude control causing battery damage
Solution Approach 1:
The patent introduces dynamic adjustment capability by implementing multiple charge controllers with different communication protocols and adjustment cycles. The system can dynamically switch between controllers based on battery type and charging conditions, enabling fast adjustment when needed while maintaining simplicity for standard charging, thus resolving the contradiction between simplicity and safety.
Solution Approach 2:
The patent introduces a protocol selection mechanism as an intermediary that determines which charge controller to use based on device identification. This intermediary layer allows the simple charger structure to access fast adjustment capabilities selectively, resolving the contradiction between structural simplicity and operational safety.
3Speed
If the second communication protocol with smaller communication volume is used, then the communication time is reduced enabling faster charge current adjustment, but the information transmission is less comprehensive
Solution Approach 1:
The patent applies partial action by transmitting only the essential charge current information needed for fast adjustment through the second protocol, accepting that not all device information is transmitted. This partial information transmission achieves the goal of fast charge current adjustment without requiring comprehensive data exchange.
Data Source
AI summary
A charger according to one aspect of the present disclosure includes a current outputter, a first charge controller, and a second charge controller. The first charge controller receives a first required information from a first device in accordance with a first communication protocol. The first communication protocol requires at least a first minimum volume of communication to acquire the first required information from the first device. The second charge controller receives a second required information from a second device in accordance with a second communication protocol. The second communication protocol requires at least a second minimum volume of communication to acquire a second required information from the second device. The second minimum volume is smaller than the first minimum volume.