Modular LED Light Engine With Individual Driver Control
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Solution Overview
Problem
Existing LED light devices used in entertainment and other applications suffer from limited color gamut, illumination matching issues, compatibility with proprietary drivers, limited lifespan due to thermal management, and failure of entire devices when a single LED fails, leading to unreliable and time-consuming maintenance.
Innovation Solution
A flexible, modular, and componentized light device with onboard drivers and thermal management, allowing individual control and easy replacement of faulty units, featuring a high color rendering index and compatibility with standard control protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LED devices are used, then lighting effects can be provided, but the color gamut is limited and illumination matching issues occur
Solution Approach 1:
The lighting system is divided into multiple independently controllable light engines, each with its own driver circuit. This segmentation allows individual control of each LED module, enabling precise color matching and illumination control across the entire lighting assembly, thereby resolving illumination matching issues while expanding color gamut capabilities.
Solution Approach 2:
The patent implements individual control of LED parameters (current, voltage, PWM duty cycle) through separate driver circuits for each light engine. By dynamically adjusting these electrical parameters, the system can precisely control color output and intensity of each LED module, achieving both expanded color gamut and consistent illumination matching across all lights.
2Ease of operation
If proprietary drivers are used, then specific LED devices can be controlled, but compatibility with standard control protocols is limited
Solution Approach 1:
The driver circuit is designed with universal functionality to support multiple control protocols (DMX512, PWM, and other digital protocols). This multi-protocol capability allows the lighting system to interface with various control systems and software, enhancing adaptability and versatility while maintaining ease of operation through standardized control interfaces.
3Duration of action of stationary object
If thermal management is not implemented, then device structure can be simplified, but lifespan is limited due to thermal issues
Solution Approach 1:
A dedicated driver circuit acts as an intermediary between the power source and LED, incorporating thermal management functionality. The driver monitors temperature and dynamically adjusts current output to prevent thermal runaway, thereby extending LED lifespan without requiring complex external thermal management hardware, thus balancing lifespan extension with structural simplicity.
4Reliability
If individual LED control is not implemented, then device complexity is reduced, but the entire device fails when a single LED fails
Solution Approach 1:
The lighting system is segmented into multiple independently controllable light engines, each with its own driver circuit. This modular architecture ensures that failure of a single LED or driver affects only that specific module, not the entire lighting system. The segmented design dramatically improves system reliability while maintaining manageable complexity through standardized modular units.
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
The solution provides customizable illumination, extended lifespan, and reliable operation by enabling individual control and easy maintenance, addressing the limitations of conventional LED devices.
Implementation Method 1
a light engine disposed on the PCB between the input connector and the output connector, the light engine comprising a plurality of light emitting diodes (LEDs)
Data Source
AI summary
A light device, a lighting apparatus, and a system including a controller and multiple light devices are described. An example light device includes a printed circuit board (PCB), an input connector disposed at a first side of the PCB, an output connector disposed at second side of the PCB, one or more light engines disposed on the PCB between the input connector and the output connector, and one or more drivers disposed on the PCB. Each light engine of the one or more light engines includes multiple light emitting diodes (LEDs). Each driver of the one or more drivers is configured to control illumination emitted from a respective light engine of the one or more light engines.