LED drivers for Ulm Minster

Powerful electronics under a church roof

The new pendant luminaires have been installed in the pointed arches between the nave and aisle. Each luminaire consists of a vertical tube that can accommodate 20 or 24 small LED lighting heads. Each lighting head is individually aligned according to its task and provided with the corresponding optics.

The extremely slim design of the luminaires could only be achieved thanks to the spatial separation of LED light sources and LED drivers. With their adjustable output currents, the amplitude dimming process and the integrated DALI interface, the dimmable constant-current LED drivers from the PREMIUM series from Tridonic provided all the necessary functions for this. 360 copies of this LED control gear element supply and control the 500 or so lighting heads.

The LED drivers have been located at a distance from the luminaires in collective housing under the roof of an aisle. Thanks to the amplitude dimming process, installation between the LED driver and light source meets all specifications regarding electromagnetic compatibility (EMC), even with long line lengths. Tridonic verified this fact using measurements in its own laboratory. The company offers such tests to verify whether the technology operates safely and in compliance with regulations including under exceptional operating conditions as a service as part of its design-in process.