LED Dimming Driver System Design Based On DALI

LED lighting is one of the main development of modern lighting direction, LED lighting has this characteristic of green in the lighting system. As the future direction of development, LED has a long life, energy saving, convenient and simple application, design easy to use and low cost characteristics. Currently LED is replacing incandescent, the future will gradually replace fluorescent lamps, energy saving lamps, to become the world’s fourth-generation lighting tool. With the current network development and people’s demands for improvement in home automation, lighting should also be able to integrate into the lighting intelligent control system. Users can use DALI through the wireless network to control the LED light switches and light and dark.LED driver is designed by flyback, use second feedback to control the tolerance of current. Now LED driver is added in the Intelligent Control System, LED driver must be able to accept network control of intelligent control software. So DALI dimming control system is added into LED driver, DALI model can get the information of driver state and feedback to Intelligent Control System. This article focuses on the design DALI dimmable LED driver circuit. Finish all the design of driver and test.