Title :
Let there be light
Author_Institution :
Tridonic-Bauelemente GmbH, Dornbirn, Austria
Abstract :
This article shows the various control signals that are usually used for dimming ballasts and the criteria for the microcontroller to distinguish the signals. The dimming interface is a manufacturer-specific digital interface that is implemented in digital controlled ballasts. Dimming interface can protect the overvoltage by use of high-voltage current limiter circuit. Features of dimming interface, measurement techniques for analog values with the digital input port of a microcontroller are also discussed.
Keywords :
digital control; fluorescent lamps; lamp accessories; lighting control; microcontrollers; overvoltage protection; analog value measurement; digital controlled ballasts; digital input port; digital interface; dimming ballasts; dimming interface; fluorescent lamp ballasts; high-voltage current limiter circuit; microcontroller; overvoltage protection; various control signals;
Journal_Title :
Industry Applications Magazine, IEEE
DOI :
10.1109/MIA.2004.1353042
