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  • MD-SIG Publishes Universal LED Specs
Jun 2016
PISCATAWAY, N.J., June 30, 2016 — The Module-Driver Interface Special Interest Group (MD-SIG), a lighting-industry consortium, has published its LEDset specifications.

The LEDset Power Interface Specification describes the data-sheet information that should be provided for LED modules and LED drivers, in terms of the output current, voltage and power ranges. With this standardized approach, luminaire makers can identify interoperable components without the risk of inaccurate matching due to poorly defined specification parameters such as temperature drift, forward-voltage tolerances and current-modulation effects. The specification also describes the testing conditions and measurement methods that should be used to verify the provided information.

The LEDset1 Information Interface Specification describes a setting method that uses a resistor to configure the output current of a window driver. The resistor is attached to the driver in the production line of the luminaire manufacturer. The LEDset1 interface can alternatively be used to automatically adapt the output current of a window driver according to an integrated coding resistor on the LED module. It also supports thermal de-rating of LED modules with integrated temperature sensors. Digital configuration methods are under consideration for future specifications.

The MD-SIG specifications are complementary to those developed by the Zhaga Consortium, a lighting-industry organization independent from MD-SIG.

MD-SIG is an open, global consortium consisting of leading lighting and LED driver manufacturers BAG electronics, BJB, Helvar, OSRAM, Panasonic/Vossloh-Schwabe, Philips Lighting, TCI and Zumtobel/Tridonic. MD-SIG was formed with the aim of introducing a standardized electrical interface between LED control gear and LED modules.

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