Colored Light Apparatus Using Signal Edges for LED Control
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Solution Overview
Problem
Current LED lighting technologies face challenges in creating dynamic and complex decoration effects with flicker mode LEDs, requiring multiple channels and increased manufacturing complexity and cost.
Innovation Solution
A colored light apparatus utilizing signal edges from a power supply line, comprising a signal edge generator and LED modules connected in parallel or series, where a controllable switch module generates signal edges to drive LED groups, simplifying the circuit and reducing costs through direct connection to the power supply line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If LED lights are divided into several groups controlled by separate controllers for each group to achieve flicker mode decoration effects, then the decoration effect is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple control functions into a single controller that manages all LED groups through shared control lines. The controller uses time-multiplexed signaling to differentiate between various LED groups and control modes, eliminating the need for separate controllers for each LED group while maintaining complex decoration effects.
Solution Approach 2:
The single controller is designed to perform multiple functions: it can control different LED groups, implement various flicker patterns, and respond to different control signals (such as remote control signals or RF signals) all through the same hardware structure, making the system universally applicable for diverse lighting scenarios.
2Device complexity
If more channels are used in LED lighting strings to achieve better water-flow decoration effects, then the decoration effect is improved, but the device complexity and cost increase
Solution Approach 1:
The patent implements periodic control signaling where the same control lines are reused in time-multiplexed fashion to control different LED groups at different time intervals. This periodic action allows multiple channels to be controlled sequentially rather than requiring simultaneous dedicated control lines for each channel, reducing overall system complexity.
Solution Approach 2:
The control system dynamically switches between different control modes and LED groups based on received signals and timing. The controller can adaptively change which LED groups are active and what patterns they display, allowing the system to achieve complex multi-channel effects with a fixed, simpler hardware structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables the creation of various color patterns with reduced circuit complexity and cost, eliminating the need for additional clock generation circuits and enhancing decoration effects by using signal edges to control LED drivers.
Implementation Method 1
Said controllable switch module is turned between ON and OFF controlled by the control circuit of said signal edge generator. Signal edges are generated when said controllable switch module turns from ON to OFF, or said controllable switch module turns from OFF to ON.
Implementation Method 2
an LED driver to drive said LED group based on the signal edges from the power supply line
Data Source
AI summary
A colored light apparatus controlled by input edge signals from a power supply line includes a signal edge generator configured to generate signal edges and output the signal edges to a power supply line; a plurality of LED modules each including an LED group, and an LED driver to drive the LED group based on the signal edges from the power supply line. The LED modules are electrically connected between a common anode and a common cathode. The controllable switch module is turned between ON and OFF controlled by the control circuit of said signal edge generator. Signal edges are generated when the controllable switch module turns from ON to OFF, or the controllable switch module turns from OFF to ON.