Color Adjustable Lamp Using TRIAC Phase Angle Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing color adjustable lamps are not easily installable in existing electrical installations, require additional wiring, and have complex user interfaces, making them difficult to replace common light bulbs.
Innovation Solution
A color adjustable lamp with at least two light sources, such as LEDs or fluorescent lamps, controlled by a lamp driving circuit that converts a varying supply voltage to determine the output light intensity and color, allowing the lamp to replace a common bulb without additional wiring, using a TRIAC phase angle dimmer or processor to adjust the light color and intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If color adjustable lamps use digital interface or additional lamp driving circuit for color control, then color adjustment capability is improved, but device complexity and wiring requirements increase
Solution Approach 1:
The lamp driving circuit automatically determines the shape of the supply voltage and controls the light sources accordingly without requiring external control signals or user interaction. The system serves itself by using the inherent characteristics of the mains voltage to control color output.
Solution Approach 2:
The lamp driving circuit serves multiple functions: it rectifies the mains voltage, determines the voltage shape, controls multiple light sources with different colors, and provides power management all within a single integrated circuit that works with standard mains voltage without additional wiring.
2Measurement precision
If color adjustable lamps require additional wiring or complex user interface, then color control precision is improved, but ease of operation and installation deteriorates
Solution Approach 1:
The system automatically controls color output based on the supply voltage shape without requiring user interaction or complex interfaces. The lamp driving circuit self-regulates the color mixing ratio based on voltage characteristics.
Solution Approach 2:
The system uses the periodic nature of the mains voltage waveform to control color output. By detecting the shape characteristics of each voltage cycle, the circuit adjusts light source intensities periodically to achieve desired color temperatures.
3Adaptability or versatility
If common light bulbs are replaced by color adjustable lamps with additional circuitry, then color versatility is improved, but ease of manufacture and replacement deteriorates
Solution Approach 1:
The lamp driving circuit is designed to work with standard mains voltage and common light bulb sockets, making the color adjustable lamp compatible with existing electrical installations without requiring special wiring or manufacturing processes.
Solution Approach 2:
The integrated lamp driving circuit automatically adapts to the supplied voltage characteristics and controls the light sources without requiring external configuration or complex assembly, simplifying both manufacturing and replacement processes.
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
Enables the use of color adjustable lamps in existing electrical installations without additional wiring, allowing for seamless replacement of common bulbs and adjustment of light color and intensity using a simple interface, while maintaining compatibility with standard dimming systems.
Implementation Method 1
A color of light depends on a spectrum of light waves having different wavelengths present in said light
Implementation Method 2
It may for example be a Light Emitting Diode (LED)
Implementation Method 3
The lamp driving circuit receives a supply voltage and converts the supply voltage to an appropriate light source supply voltage, or current, for each light source
Implementation Method 4
The supply voltage energizes the light sources and its shape determines the color of the light output by the lamp
Data Source
AI summary
A color adjustable lamp may be controlled using a well-known TRIAC dimmer circuit. The color adjustable lamp comprises two or more light sources. Each light source may output light having a different color. By setting an output intensity of each light source, light having a desired color may be output. A circuit or a processing unit comprised in a lamp driving circuit may detect a set phase angle of the TRIAC dimmer circuit by determining a shape of the supplied alternating voltage. According to the determined shape, the circuit or processing unit controls a lamp driver circuit for each light source in order to control the intensity of the light output by each light source.