Lighting Controller Power Data Signal Encoding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing outdoor lighting systems face inefficiencies due to the need for separate wires for power and data, leading to increased wiring complexity and heat generation in switching power supplies, which requires large enclosures to prevent overheating.
Innovation Solution
A full-wave rectifier coupled with a bridge circuit using MOSFETs provides a low-loss power signal, allowing for a two-wire data/power signal that reduces heat loss and eliminates the need for separate power and data wires, enabling efficient power transmission and data encoding within the same signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate wires are used for power and data in lighting systems, then reliable power transmission and data communication are achieved, but wiring complexity increases
Solution Approach 1:
The patent combines power and data transmission into a single wire by superimposing high-frequency data signals on top of the power signal. The lighting controller and modules are designed to handle both power delivery and bidirectional data communication over the same physical medium, eliminating the need for separate data wires while maintaining reliable communication through signal filtering and processing techniques.
Solution Approach 2:
The single wire in the lighting system is designed to serve multiple functions simultaneously: it acts as both a power delivery medium and a data communication channel. The lighting controller and modules are equipped with circuitry that can distinguish between power signals and data signals, enabling the same physical connection to fulfill both electrical power supply and digital communication roles.
2Use of energy by moving object
If switching power supplies are used to provide power to lighting modules, then efficient power conversion is achieved, but heat generation increases requiring large enclosures
Solution Approach 1:
The patent extracts the power conversion function from centralized switching power supplies and distributes it to individual lighting modules using simple rectifier circuits. Each module contains only basic rectification components rather than full switching power supply circuitry, which significantly reduces heat generation at each location while maintaining overall system efficiency through distributed power conversion.
Solution Approach 2:
The power conversion system is segmented into multiple distributed rectifier circuits at each lighting module rather than using a single centralized switching power supply. This segmentation distributes the heat generation across many small units rather than concentrating it in one location, eliminating the need for large enclosures to dissipate heat while maintaining efficient power conversion at each module.
Data Source
AI summary
Systems and methods are provided for lighting systems, including high output lighting systems for various environments. The lighting systems include a lighting controller for driving lighting modules and transmitting a data signal to the lighting modules. The data signal varies between logical states. The lighting controller provides a low loss rectified power signal. The lighting controller further provides data within the power signal by forming a positive polarity rectified power waveform corresponding to data in a first state and a negative polarity rectified waveform signal corresponding to data in a second state using substantially loss-less circuitry.