LED Control Device Segmentation for Dimming and Color Temperature
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing LED lighting devices require frequent component replacements and upgrades, and lack advanced functionality such as dimming and color temperature control, which limits their efficiency and user convenience.
Innovation Solution
An LED control device is introduced, comprising a power supply, a controller, and a switching device that operates using internal power voltages to provide driving power to LEDs, allowing for communication with external controllers and implementing dimming and color temperature control functions by adjusting the duty ratio of a PWM signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LED drivers are upgraded to add dimming and color temperature control functions, then lighting functionality is improved, but device complexity and replacement frequency increase
Solution Approach 1:
The system is divided into independent functional modules: the LED driver remains separate from the control device, with the control device containing the controller, switching device, and power supply as distinct components. This segmentation allows the LED driver to remain simple while adding control functionality through the separate control device.
Solution Approach 2:
A control device is introduced as an intermediary component between the power source and the LED driver. This control device includes a controller that generates control signals, a switching device that adjusts power delivery, and a power supply that provides internal voltages, thereby enabling dimming and color temperature control without modifying the LED driver itself.
2Adaptability or versatility
If LED drivers are replaced frequently to add new functions, then functionality is improved, but loss of time and increased waste occur
Solution Approach 1:
The control device is designed with a power supply that generates internal power voltages from the driving power, eliminating the need for separate power supply installations. This preliminary preparation of power conversion capability within the control device reduces installation time and complexity when adding control functionality to existing LED lighting systems.
3Adaptability or versatility
If LED drivers are replaced frequently to add new functions, then functionality is improved, but loss of substance and waste increase
Solution Approach 1:
The control device is designed to work with existing LED drivers without requiring modifications or replacements. The switching device can control multiple LEDs, and the power supply can generate different internal voltages to support various LED configurations and control functions, making the system universally applicable and reducing waste.
4Ease of manufacture
If internal power voltages are generated from driving power, then ease of manufacture is improved, but use of energy increases
Solution Approach 1:
The power supply within the control device automatically generates the required internal power voltages by processing the incoming driving power. This self-service approach eliminates the need for external power supply installations and complex wiring, significantly easing manufacture and installation while the power conversion efficiency is optimized to minimize energy loss.
Data Source
AI summary
A light emitting diode (LED) control device includes: a power supply connected to a first driving node and a second driving node of an LED driver configured to provide driving power to a light source including a plurality of LEDs; a controller configured to operate by a first internal power voltage output from the power supply, and receive a control command from an external controller; and a switching device connected to the second driving node, and configured to operate by a second internal power voltage output from the power supply and control brightness of the light source based on a control signal which is output from the controller in response to the control command.