How to Choose a Suitable LED Dimming Power Supply for Luminaires

The application of LED in lighting fixtures is becoming increasingly widespread, coupled with its unique advantages over traditional lighting methods. In addition to improving quality of life, improving light source efficiency, and extending lamp life, it utilizes its unique dimmable function to change the color temperature and brightness of lights, and fully achieves its maximum advantages in energy-saving applications. The dimming efficiency of LED lighting fixtures depends on the matched dimming power supply, so how to choose the appropriate LED dimming power supply?
Choose a constant current source or a constant voltage source dimming power supply?
When choosing a dimming power supply, whether to choose a constant voltage power supply or a constant current power supply, the first step is to confirm whether it is a constant voltage circuit or a constant current circuit. If the light source circuit cannot be confirmed, it can be judged based on the marked parameters of the lamp. If the input voltage is marked as DC12V/24V, it is a constant voltage lamp. You can choose a constant voltage dimming power supply for dimming. Common constant voltage lamps include LED light strips, light strips, LED guardrail tubes, diffuse emission light sources, etc.
In cases where the light source circuit cannot be confirmed, the output current of the lamp can be checked, such as 600mA. If the output voltage is within the range value, such as 12-20V, it is a constant current lamp. A constant current power source can be selected for dimming. Common constant current lamps include: down lamps, spotlights, ceiling lamps, panel lamps, etc.
Common dimming methods include: thyristor dimming, 0/1-10V, DALI, PWM, DMX512, RESISTORS
Thyristor dimming
Thyristor dimming is achieved by chopping the AC power at the input end of the power supply to change the output voltage and current. The advantage of this dimming method is that it has simple wiring and does not require additional wiring. Simply string a dimming switch or system at the input end to perform dimming. There are two dimming methods for thyristor: front and rear edge dimming, and most of the thyristor power supply series of Yanshuoda can achieve front and rear edge compatibility, perfectly matching the vast majority of dimmers in Europe and North America, with excellent dimming effects.
0-10V/1-10V dimming
Generally, it is compatible with resistor dimming on the market, while the ASD is 0-10V/1-10V, compatible with resistor and 10V PWM, as well as triac five in one dimming.
DALI Dimming
DALI dimming is a digital dimming method based on the DALI communication protocol.
PWM signal output
By changing the width of the pulse signal to change the light output, i.e. changing the duty cycle to adjust the brightness of the lamp. Although PWM dimming is a pulse signal occupation ratio, pulse signals can also be voltage signals, usually with 3V, 5V, and 10V pulse voltage signals. For example, the five in one dimming power supply series of Yanshuoda is a 10V pulse voltage signal, because some lamps and dimmers on the market require the power source output to have PWM, which can be adjusted through PWM signals. The dimming method is thyristor, etc.
DMX512 dimming
DMX512 dimming. In practical applications, the dimming method of DMX512 is usually designed by combining the power supply and controller. The DMX512 controller controls 8-24 lines, directly driving the RGB lines of LED lamps. The control system achieves 256 grayscale levels of R, G, B, and W, achieving full color dimming. DMX512 dimming simplifies the control method of lighting, providing the possibility for large-scale control of lighting, and is more suitable for occasions where lighting fixtures are concentrated together, such as dance table lights and architectural landscape lights.
RESISTORS Dimming
By connecting the lamp in series and changing the resistance value, the current is adjusted to achieve dimming. Author: Yanshuoda Power Supply https://www.bilibili.com/read/cv11767713/ Source: Bilibili