Do you know the principle of dimming and color adjustment of LED track lights?

With the continuous development of society, people are pursuing smart home life, and LED lamps are developing faster and faster under the concept of environmental protection and energy saving. Many creative products have also appeared in the market in large numbers. I believe that when you buy lamps, there will be shopping guides recommending LED track lights that can be dimmed and adjusted. Everyone will find it very novel and want to install it in their own home. So do you know the principle of dimming and color adjustment of track lights?

First, let me introduce the principle of dimming of LED track lights:

1. PWM dimming

Use multiple different circuits to realize the switching of the forward LED track light current, and control the voltage of the dimming control pin of the power chip by adjusting the pulse width of the dimming PWM signal to achieve the purpose of dimming.

2. Grouping control

Group multiple LEDs and use a simple grouper for control.

3. Dimming of fixed-frequency buck LED driver

The driver is configured to dim or parallel dim by controlling the fixed-frequency current mode.

Next, I will introduce the principle of color temperature adjustment of LED track lights:

LED track light color temperature adjustment is to change the proportion of light. In fact, there are 2 outputs inside the track light, one with a lower color temperature and the other with a higher color temperature. Each output is independent. The color temperature is adjusted by adjusting the ratio of the two LED driving currents. This method can only adjust the color temperature but not the brightness.

The application of LED track light dimming technology can not only effectively protect the circuit, but also reduce power consumption. With the country's support for LED lamps, LED lighting will surely develop better and better.