7700233a_chnology__Application_Magazine__Description
[Planned Topic*] Special: Standardization [Keywords - Content] Modules, COB, drivers, supplies, interchangability, thermal interface, light emitting surface, [Description] 
Latest Zhaga Consortium Activities In a series of articles, Zhaga members will explain how the organization is making progress towards its aim of standardizing LED light engines and associated components, and simplifying LED luminaire design and manufacturing. • Zhaga is evolving: Zhaga has made a number of changes to reflect the demands of the global lighting marketplace. One example is the creation of separate specifications (Books) for LED modules and LED drivers, leading to independent interchangeability of these components. Another is to create a specification for chip-on-board (COB) arrays. Other new Books are also in development. • COB specification: The wide range of alternative form-factors for COB modules can create difficulties for luminaire makers, as well as suppliers of components such as optics and COB holders. Zhaga has made rapid progress in standardizing COB form-factors, creating a family of six square and rectangular modules. • Thermal interface: Specification of the thermal interface of LED light engines and LED modules is an essential part of ensuring that Zhaga components are interchangeable. Zhaga LED light engines and Zhaga modules are supplied with a standardized data set which allows an easy check of the thermal fit of the LED light source with the luminaire. • Light-emitting surface (LES): Developed by Zhaga, the concept of LES provides a simple method to ensure that the photometric properties of different LED light engines can be compared. The LES is a geometrical shape, often circular or rectangular, and its properties vary according to the Zhaga specification in question. • Driver-module interface (DMI): Enabling LED modules and LED drivers to be interchangeable at the component level requires a specification for the electrical interface between the driver and module. In fact, Zhaga has chosen to refer to a specification developed by an external organization, MD-SIG.
Advertise — LED professional - LED Lighting Technology, Application Magazine
Description