Light Engine Driver Interface for Automatic Current Configuration
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Solution Overview
Problem
The incompatibility of light engines and drivers due to varying voltage, current, and channel requirements leads to logistical and ecological challenges, necessitating multiple component stocks and limiting interchangeability, especially under EU regulations.
Innovation Solution
A light engine with a driver interface that includes a control unit and memory unit to manage maximum permissible current, allowing automatic configuration of drivers, and a power distribution unit for individual LED strand control, enabling easy exchangeability and integration with any driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If light engines and drivers are designed with fixed voltage, current, and channel specifications, then each product variant requires specific component combinations, but this increases inventory complexity and reduces interchangeability
Solution Approach 1:
The patent implements dynamic configuration where the light engine can adapt its operating parameters (voltage, current, channel allocation) based on the connected driver's capabilities. The control unit receives driver information via digital interface and automatically configures the LED strands accordingly, transforming fixed specifications into flexible, adaptive parameters that resolve the contradiction between reliability and inventory complexity
Solution Approach 2:
The system changes operational parameters dynamically through digital communication. The driver and light engine exchange data about voltage, current, and channel capabilities, allowing the same physical hardware to operate with different parameter sets depending on the partner component, thereby enabling universal compatibility without requiring multiple product variants in stock
2Reliability
If manual configuration is required for each driver-light engine combination, then compatibility can be ensured, but this increases installation time and reduces ease of operation
Solution Approach 1:
The light engine performs self-configuration through automatic parameter detection and setting. Upon connection to a driver, the control unit automatically retrieves driver capabilities via digital interface, determines appropriate operating parameters, and configures the LED strands without human intervention. This self-service mechanism ensures compatibility while eliminating manual configuration steps
Solution Approach 2:
The system implements bidirectional digital communication where the driver provides information about its capabilities (voltage, current, channels) and the light engine provides information about its LED strand configuration. This feedback loop enables automatic mutual recognition and configuration, ensuring compatibility while simplifying installation to a simple plug-and-play connection
3Reliability
If multiple driver variants are kept in stock for different light engine requirements, then appropriate matching is possible, but this increases inventory costs and ecological impact
Solution Approach 1:
The patent creates universal driver and light engine components that can work together in any combination through automatic configuration. A single driver variant can serve multiple light engine types and vice versa, because each device adapts its parameters based on the connected partner. This universality eliminates the need for multiple specialized variants in stock, reducing inventory quantity while maintaining reliable matching through digital communication and automatic parameter adjustment
Data Source
AI summary
A light engine with a driver interface is provided. The light engine is configured to be driven by a driver via the driver interface. The light engine comprises an LED circuit, wherein the LED circuit comprises a number of LED stands each comprising a number of LEDs. The light engine further comprises a control unit comprising a memory unit for storing a maximum allowable current value for the light engine, and a digital interface for receiving and/or sending data, wherein the control unit is configured to output the maximum allowable current value stored in the memory unit via the digital interface for configuring the driver so that the electric current provided by the driver does not exceed the maximum allowable current value of the light engine. A driver and a system are further specified.