Dimming control system and working method thereof

• Main Authors: GUO JIAN, LI CHANGJUN, LYU YAXIN, ZHANG JINGJING, FENG SHILONG
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2021
• Subjects: ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY

The invention relates to a dimming control system and a working method thereof. The system comprises a dimming controller, a signal conversion box, a contactor and a plurality of LED driving chips, the dimming controller, the signal conversion box, the contactor and the plurality of LED driving chips are connected in sequence, and the plurality of LED driving chips are used for driving an LED lamp; the dimming controller is used for sending a dimming signal; the signal conversion box is used for judging a power failure condition within a preset time according to the dimming signal and sending a power failure signal to the LED driving chip; the contactor is used for being connected between the signal conversion box and the LED driving chip; and the LED driving chip is used for controlling the light color of the LED according to the power-down signal. According to the invention, a signal conversion box is added at an input line end, and a dimming controller signal is converted into an input voltage signal throu