LED Controller Power Line Signal Decoding for Dimmer Compatibility
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Solution Overview
Problem
Traditional dimming controls for incandescent lighting are often incompatible with LED lighting systems, leading to impaired or negated functionality when trying to replace incandescent bulbs with LED bulbs or strips of equivalent luminosity.
Innovation Solution
An LED controller that receives signaling modulations from a power line, decodes data based on predetermined modulation characteristics, and modifies performance parameters of LED driver channel circuits to control brightness levels, enabling compatibility with standard dimmer controls and manual switches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional dimming controls are used with LED lighting, then compatibility with existing controls is improved, but the dimming function may be impaired or negated
Solution Approach 1:
The patent introduces an intermediary device between the traditional dimming control and the LED lighting system. This intermediary translates the dimming control signals into appropriate LED control commands, ensuring both compatibility with existing controls and reliable dimming function. The intermediary acts as a bridge that converts incompatible signal types into a form that LEDs can understand and respond to properly.
Solution Approach 2:
The patent changes the parameters of the control signal transmission by modulating the power line carrier frequency to embed control data. Instead of using direct electrical connection for control signals, the system uses frequency modulation of the existing power line, transforming the control mechanism while maintaining compatibility with traditional dimming switches and enabling reliable LED control.
2Device complexity
If signaling modulations are transmitted over power lines, then wireless remote controls and complex infrastructure are eliminated, but signal decoding complexity increases
Solution Approach 1:
The patent makes the power line serve multiple functions simultaneously: it provides both power delivery and data communication. By using the existing power infrastructure for dual purposes, the system eliminates the need for separate wireless remote controls and additional communication infrastructure, reducing overall device complexity while enabling control functionality through the same medium already present in the system.
Data Source
AI summary
Implementations generally relate to lighting control. In one implementation, a method includes receiving signaling modulations from a power line. The method further includes decoding data based on predetermined modulation characteristics of the signaling modulations, where the data includes one or more operational commands. The method further includes modifying performance parameters of one or more LED driver channel circuits based on one or more of the operational commands. In some implementations, the one or more LED driver channel circuits supply modulated drive current to one or more LEDs. In some implementations, the performance parameters effect brightness levels of the one or more LEDs connected to the one or more LED driver channel circuits.