What is the principle of atmosphere light color change? How does the atmosphere light change color automatically?

What is the principle of atmosphere light color change? How does the atmosphere light change color automatically?

1, what is the principle of atmosphere light color change

With the advancement of automotive electronic technology, interior lighting is no longer limited to a single function, but towards a more comfortable, personalized direction, such as interior atmosphere lights. These lights can adjust the color and brightness according to the environment in the car and the needs of the driver. So, how do they change color?
The light source of the interior atmosphere lamp is usually RGB-LED, using the additive light mixing principle of red, green and blue three primary colors, by adjusting the ratio of red, green and blue light, you can achieve different color light source effects. At the same time, through the control circuit, the controller will output the data of the working state of the LED in the form of PWM signal to the driving MOS tube, and use the pulse width modulation technology to control the luminous intensity of the three colors of red, green and blue, so as to achieve the mixing and adjustment of the three primary colors of the RGB LED to achieve the effect of various color changes.

Not only that, by adjusting the PWM output waveform, that is, changing the proportion of the LED turn-on time, you can also adjust the brightness of the light source to achieve changes in brightness.

2. How does the atmosphere light change color automatically

The interior atmosphere lights not only support manual adjustment, but also automatically change color function to adapt to the needs of different scenes. How to achieve this feature?

The Settings of different models may be different, and the adjustment method will be different. Usually, this function can be turned on or off with a control button, which may be located near the sunroof knob or on the center console. Users can obtain detailed information from the vehicle manual or consult the manufacturer.

In addition, the atmosphere lights of some vehicles support adjustment through the mobile phone application, just download the corresponding application, you can operate through the mobile phone to achieve automatic color change.

If you need to adjust the brightness or color of the atmosphere light, you can also set it through the vehicle infotainment system (car). Enter the menu interface, find the light adjustment option, select the corresponding light Settings, adjust the brightness.