Ground Overcurrent Control System with Dynamic Switch Isolation
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Solution Overview
Problem
Existing systems fail to effectively detect and mitigate excessive current conditions in ground circuits, which can lead to damage in electronic devices and components due to exposed power terminals and unplugged cable assemblies causing current to flow through ground circuits.
Innovation Solution
A ground overcurrent control system comprising a controller, electrical connector, ground circuit with switch element, and sensor systems that detect current and voltage thresholds to automatically isolate the ground circuit when excessive current is detected, preventing damage and restoring normal operation once the condition is resolved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ground circuit remains continuously connected to provide a stable ground reference, then the electrical stability is improved, but the risk of damage from excessive current increases when a cable assembly is improperly connected
Solution Approach 1:
The ground circuit connection is made dynamic through a switch element that can transition between connected and isolated states. The controller monitors current levels and automatically opens the switch when excessive current is detected, converting the static ground connection into a dynamically controlled one that adapts to safety conditions.
Solution Approach 2:
The switch element acts as an intermediary between the first ground circuit section and the second ground circuit section. It mediates the ground connection by allowing current flow under normal conditions while blocking excessive current when safety thresholds are exceeded, protecting the electronic device without requiring permanent disconnection.
2Object-affected harmful factors
If a switch element is introduced to control the ground circuit and prevent overcurrent damage, then the protection capability is improved, but the system complexity increases
Solution Approach 1:
The ground overcurrent control system is self-regulating through automatic detection and response. The controller continuously monitors current levels and autonomously controls the switch element without requiring external intervention or complex control algorithms, simplifying the overall system architecture while maintaining effective protection.
Solution Approach 2:
The system implements continuous feedback monitoring of ground circuit current levels. The controller receives real-time current information and adjusts the switch element state accordingly, creating a closed-loop control system that automatically responds to changing conditions without requiring complex external control mechanisms.
3Object-affected harmful factors
If the ground circuit is automatically isolated upon detecting overcurrent, then the safety is improved, but the operational continuity deteriorates until the condition is resolved
Solution Approach 1:
The system takes preliminary protective action by opening the switch element before excessive current can cause damage. This preventive measure isolates the ground circuit at the first sign of overcurrent conditions, protecting components while maintaining the ability to quickly restore operation once the hazardous condition is eliminated.
Data Source
AI summary
A ground overcurrent control system includes ground circuit with a first section and a second section. The first section is electrically connected to a ground member of an electrical connector and the second section is electrically connected to a ground reference. A switch element is positioned between the first section of the ground circuit and the second section of the ground circuit. A controller is configured to determine the current within the ground circuit while current is passing through the switch element and, upon the current exceeding a current threshold, the switch element is modified to an open condition. Upon determining that the voltage between the first section of the ground circuit and the ground reference is less than a voltage threshold, a command is generated to modify the switch element back to a closed condition.