The advantages of dali led drivers

2021-05-10

* sesy and simple design

The dali led drivers digital control system is easy to design. It only needs to be connected to each other through the digital signal interface and connected to the 2-core control line in parallel. All groups and scenes can be programmed by computer software during installation and debugging, which not only saves wiring costs, but also only needs to change the software settings without rewiring for design modification, re-layout and separation, which is very simple and easy.

*Simple and economical installation

There are 2 main power lines and 2 control lines for installing the DALI interface. There are no special requirements for wires and no polarity requirements during installation. Only the main power line and the control line are required to be isolated. The control line does not need to be shielded. The line current is 250mA, and the voltage drop does not exceed 2V when the line is 300 meters long. The control line and the power line can be parallel, no need to bury the line separately. The compact design of the control components does not require a special control cabinet, so installation is simple and economical.

* accurate and reliable Controli
dali led drivers is a digital signal, which is different from an analog signal. The signal of 1010 can achieve disturbance-free control, and will not distort the control signal due to long-distance voltage drop. Therefore, even if the DALI digital signal control line and the strong wire run the same line and tube Be disturbed. The DALI signal is two-way transmission, which not only transmits control commands forward, but also feeds back the information of the ballast and lamp tube status, fault information, switch, and actual brightness value to the system.

*Simple and reliable communication structure
The DALI interface communication protocol consists of 19 bits, the first bit is the start bit, the second to the 9th bit are the address bit, the 10th to the 17th bit is the data, and the 18th and 19th bit is the stop bit. The unique Manchester encoding is used to avoid errors. The transmission rate of 1200 baud can ensure that the communication between the devices is not disturbed. The high level on the control line is 16V. Each controller on the control line functions as a master in communication, while the control appliances like ballasts on the control line only respond to the command of the master to act as a SLAVE, and the system has a distributed intelligent function.

*Wide range of applications:
Nowadays, DALI interface is not only used for dimming of fluorescent lamp ballasts, various 12v dimmable led driver for halogen lamps, electronic ballasts for gas discharge lamps, LEDs also use DALI interface dimming; control equipment also includes: radio receivers , Relay switch input interface. Various key control panels, including LED display panels, already have DALI interfaces, which will make DALI applications more and more widely, the controller will expand from the smallest office to the office building with multiple rooms, from a single store to a satellite Grade hotel.

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