Technology: Electronic Control Gears
Type: Product changes
Amplitude dimming across the entire dimming range from 100% to 1%.
This new feature of our OSRAM OTi DALI Compact 50 W LED drivers significantly reduces the modulation of light in the lower dimming range, ensuring that it can no longer even be perceived by mobile cameras.
All OPTOTRONIC DALI LED drivers can be dimmed from 100 % to 1 %. To cover this wide dimming range, up to now two dimming methods were combined: amplitude dimming down to 30 % and in the lower dimming range PWM (pulse width modulation). Due to narrower tolerances of the single LED regarding luminous flux and color rendering and additional improvements (e.g. circuit design) it is now possible to enlarge the amplitude dimming range from typically 100 % ... 30 % to 100 % ... 1 %.
It is no longer necessary to use pulse width modulation (PWM) in the lower dimming range. The benefits are firstly a more efficient LED operation and secondly a significantly lower light modulation in the low dimming range. Light modulation cannot be observed any longer via mobile cameras. Being DALI ed2 compatible, it enables all standardized DALI functions.