Single Live Line Switch Circuit for Multi-Panel Power Continuity
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Solution Overview
Problem
Traditional single live line switch circuits in intelligent switch panels often fail to receive power when control schemes involve multiple panels, limiting the ability to control lighting loads independently at different locations.
Innovation Solution
A single live line switch circuit design that includes a single live line connecting end, a first switch unit, two wire channels, an on-state power obtaining circuit, an off-state power obtaining circuit, and an energy storage element, allowing power to be stored and managed to enable independent control of lighting loads across multiple panels without altering the original single live line structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional single live line switch circuit is used in intelligent switch panel, then the original single live line structure is maintained, but the control circuit cannot obtain power when multiple panels are used
Solution Approach 1:
The power obtaining function is segmented into two independent circuits: on-state power obtaining circuit and off-state power obtaining circuit. Each circuit is responsible for power acquisition in a specific switching state, ensuring continuous power availability across multiple panels regardless of the switching state.
Solution Approach 2:
The circuit dynamically switches between on-state and off-state power obtaining paths based on the switching state. The first switch unit and second switch unit enable the circuit to adaptively select the appropriate power obtaining path, ensuring power continuity in multi-panel configurations.
2Extent of automation
If intelligent switch panel is upgraded from mechanical switch panel, then intelligent control functionality is added, but the control circuit cannot receive power under two or more panel control schemes
Solution Approach 1:
The circuit performs preliminary power acquisition in both on-state and off-state conditions. By preparing power obtaining paths in advance for both switching states, the circuit ensures that the intelligent control circuit can always receive power regardless of the current switching state or panel configuration.
Solution Approach 2:
The energy storage element acts as an intermediary between the power obtaining circuits and the control circuit. It stores energy from either the on-state or off-state power obtaining circuit and provides continuous power to the intelligent control components, enabling multi-panel control functionality.
3Device complexity
If single live line connection is used, then wiring complexity is reduced, but the switch circuit cannot provide power to control circuit in all switching states
Solution Approach 1:
The single live line is designed to serve multiple functions: it provides power to both the on-state power obtaining circuit and the off-state power obtaining circuit. This multi-functional design allows the same wiring infrastructure to support power acquisition in all switching states without increasing wiring complexity.
Solution Approach 2:
The circuit changes its operational parameters (switching states of first and second switch units) to adapt to different power acquisition needs. By dynamically adjusting the switching parameters, the circuit can extract power from the single live line in both on-state and off-state conditions, ensuring continuous power supply to the control circuit.
Data Source
AI summary
A single live line switch circuit includes a single live line connecting end, a switch unit, two wire channels, an on-state power obtaining circuit, an off-state power obtaining circuit, and an energy storage element. The single live line connecting end is connected to an external single live line. The on-state power obtaining circuit is connected to the single live line connecting end. The switch unit includes a fixed connecting end and a movable connecting end, and the fixed connecting end is connected to the on-state power obtaining circuit. The two wire channels are provided with a first connecting end and a second connecting end, respectively, and the movable connecting end of the switch unit is in contact with the first connecting end or the second connecting end. A control method of the single live line switch circuit is provided.