LED Module Driver Segmentation for Color Accuracy
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Solution Overview
Problem
Existing lighting devices lack a simple and scalable solution for driving light-emitting diode (LED) modules with multiple color sources, which limits their flexibility and efficiency in producing desired color ranges and luminous flux.
Innovation Solution
A modular lighting device comprising multiple LED modules with different color LEDs, each driven by a dedicated driver and controlled by a central unit that uses pulse width modulation and sensor feedback for precise color and brightness regulation, allowing for scalable and flexible lighting solutions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single driver is used to control multiple LED modules with different color LEDs, then device complexity is reduced, but control precision and color accuracy deteriorate
Solution Approach 1:
The system segments the control function by assigning a dedicated driver to each LED module. Each driver independently controls its assigned module's color LEDs, ensuring precise color accuracy while maintaining manageable system complexity through modular architecture.
Solution Approach 2:
Each driver is designed as a universal control unit that can manage multiple color LEDs within its assigned module. The driver implements pulse width modulation to independently regulate different color LEDs, providing multi-functional control capability within a standardized component.
2Manufacturing precision
If multiple drivers are assigned to control LED modules, then color accuracy and control precision improve, but device complexity and production costs increase
Solution Approach 1:
The control system is segmented into independent driver-module units, where each driver manages a specific LED module. This segmentation enables precise color control for each module while allowing the overall system to scale modularly, balancing complexity with performance.
Solution Approach 2:
The system adopts a dynamic modular architecture where drivers and LED modules can be independently configured and scaled. This allows the system to adapt its complexity level based on application requirements, using more drivers for high-precision applications and fewer for simpler applications.
3Adaptability or versatility
If LED modules with multiple color LEDs are used, then adaptability and color range improve, but control complexity increases
Solution Approach 1:
The control complexity is segmented and distributed to individual drivers, each handling a specific LED module's multiple color LEDs. This distributes the control burden and simplifies the overall system architecture while maintaining wide color range capability through coordinated operation of multiple modules.
Solution Approach 2:
The system incorporates feedback mechanisms where sensors detect the actual light output and color characteristics, and this information is fed back to the control device. The control device adjusts pulse width modulation signals accordingly, enabling automatic color and brightness regulation that simplifies user interaction while achieving high adaptability.
4Measurement precision
If pulse width modulation with sensor feedback is implemented, then color and brightness regulation precision improve, but control system complexity increases
Solution Approach 1:
Sensors are integrated into each LED module to detect actual light output and color characteristics. This measurement feedback is transmitted to the control device, which automatically adjusts pulse width modulation signals to achieve precise brightness and color regulation, eliminating the need for complex manual control mechanisms.
Solution Approach 2:
The system implements self-service control where the feedback from sensors enables the control device to automatically regulate its own output without external intervention. The pulse width modulation is dynamically adjusted based on real-time sensor data, allowing the system to self-correct and maintain precision while keeping the control interface simple.
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 enables efficient and scalable production of high-color-rendering index light with adjustable color and brightness, accommodating various lighting applications while maintaining low production costs and high efficiency.
Implementation Method 1
at least two light-emitting diodes that emit light of different colors to one another during operation
Implementation Method 2
The light-emitting diodes differ in this case in terms of the color of the light which they emit during operation
Implementation Method 3
the control device is configured to control the operating current supplied to the light-emitting diodes by means of pulse width modulation
Data Source
AI summary
The invention relates to a lighting device having at least one light-emitting diode module (1), which comprises at least two light-emitting diodes (11), which during operation emit light having colors that differ from each other, at least one driver (2), which is designed to supply the light-emitting diodes (11) of exactly one of the at least one light-emitting diode modules (1) with operating current, exactly one control device (3), which during operation controls the at least one light-emitting diode module (1) in an open-loop and/or closed-loop manner, wherein each light-emitting diode module (1) is biuniquely associated with a driver (2), and the control device (3) controls each light-emitting diode module (1) in an open-loop and/or closed-loop manner by means of the driver associated with the light-emitting diode module (1).