Phase Dimmer for LED Color Temperature Control
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Solution Overview
Problem
Conventional LED dimming systems for white light-emitting diodes (LEDs) often result in an irritating high color temperature at low luminous intensity, requiring complex and costly methods to achieve variable color temperatures, which leads to suboptimal utilization of LED chips and increased costs due to the need for multiple LED chains and drivers.
Innovation Solution
An optoelectronic component device with a phase dimmer that controls two groups of optoelectronic components to adjust the proportion of electromagnetic radiation based on phase angle, allowing for dimming while maintaining optimal utilization of LED chips and reducing complexity and cost by using a single chain of optoelectronic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple LED chains with different color temperatures are used to achieve variable color temperature, then color temperature variability is improved, but device complexity and cost increase due to requiring multiple drivers and control units
Solution Approach 1:
The patent combines multiple LED chains with different color temperatures into a single controlled system where all chains share one driver and control unit. The driver simultaneously controls the current through all LED chains, and the control unit coordinates their operation to achieve variable color temperature output without requiring separate drivers for each chain.
Solution Approach 2:
The system dynamically adjusts the current distribution among different LED chains based on the desired color temperature. By varying the current intensity through each chain in real-time, the system achieves continuous color temperature variation while using a single driver, thereby reducing complexity compared to static multi-driver configurations.
2Adaptability or versatility
If multiple LED chains with different color temperatures are used to achieve variable color temperature, then color temperature variability is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines multiple LED chains with different color temperatures into a single controlled system where all chains share one driver and control unit. The driver simultaneously controls the current through all LED chains, and the control unit coordinates their operation to achieve variable color temperature output without requiring separate drivers for each chain.
Solution Approach 2:
The single driver and control unit serve multiple functions by controlling all LED chains with different color temperatures. This multi-functional approach eliminates the need for separate drivers for each chain, reducing component count and manufacturing cost while maintaining the capability to produce variable color temperature light.
3Illumination intensity
If current through LED chains is reduced for dimming, then luminous intensity is reduced, but LED chip utilization becomes suboptimal as maximum current intensity is not present simultaneously
Solution Approach 1:
The system dynamically adjusts the current distribution among different LED chains based on the desired color temperature. By varying the current intensity through each chain in real-time, the system achieves continuous color temperature variation while using a single driver, thereby reducing complexity compared to static multi-driver configurations.
Solution Approach 2:
The patent ensures continuous utilization of LED chips by maintaining current flow through all chains simultaneously rather than switching between them. The driver continuously adjusts current distribution to optimize both dimming performance and chip utilization, ensuring that all LED chips remain active and contribute to light output throughout the dimming range.
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 simple, cost-effective dimming of LED lights with variable color temperature, optimizing the use of LED chips and reducing the need for multiple drivers, while maintaining efficient light emission and color control.
Implementation Method 1
an optoelectronic component can be understood to mean a component emitting electromagnetic radiation... The radiation can be, for example, light in the visible range... The light-emitting component can, in various embodiments, be part of an integrated circuit... a light-emitting diode (LED)
Data Source
AI summary
An optoelectronic component device includes a first group of optoelectronic components including at least one first optoelectronic component, wherein the at least one first optoelectronic component provides electromagnetic radiation of a first color valence, a second group of optoelectronic components including at least one second optoelectronic component, wherein the at least one second optoelectronic component provides electromagnetic radiation of a second color valence, and a phase dimmer, wherein the phase dimmer is designed in such a way that a first operating mode and a second operating mode are provided, wherein the phase dimmer actuates the first and the second group of optoelectronic components in such a way that, in the first operating mode, a first array of optoelectronic components of the optoelectronic component device is energized and, in the second operating mode, a second array of optoelectronic components of the optoelectronic component device is energized.