The system is a closed-loop control system.
The input of the system is the LED color signal detected by the color sensor, which is an analog signal. Then, the analog signal is input to the analog-to-digital conversion circuit and converted into a digital signal. Then the converted digital signal is input into the fuzzy controller, and then the fuzzy controller adjusts the corresponding LED light source according to the input color signal.
The dimming circuit mainly adjusts the power supply voltage of LED, thus adjusting its brightness.
The main controller of fuzzy control is mainly realized by field programmable gate array.