Pending Luminary

The Pending Luminary is a good example of the advances in fashionable lighting that can be achieved using high power LEDs and a very efficient Electronics to power the LEDs from the mains. Modern electronic driver ICs power 3 OSTAR Lighting LEDs.

The pending luminary is designed in order to demonstrate an approach, how fashionable LED lighting systems can be designed, regarding electrical, optical and thermal point of view. The heart of this application is consisting of 3 OSTAR Lighting LEDs with a total power of approximately 48W power consumption. The driver electronics contains a Power Factor Corrector Circuit (PFC) because above 25W the EN61000-3-2 norm has to be fulfilled.

Pending Luminaire

For optimal control the LEDs have to be supplied by a current source. The circuit is fulfilling all requirements, especially an excellent energy efficiency above 90% is guaranteed.
The SARCON® Thermal Interface Materials from Fujipoly provides a good thermal connection between the OSTAR and the aluminium base.

Fields of Application:

General lighting systems
High-tech LED lamps
Ambient lighting systems
Architainment
Advertising lighting
Decoration lighting
Interior lighting

Benefits:

Stable white colour
Simple and easy design modification
Wide input voltage range
High Power Factor
Constant current sources for LEDs
Cost effective design
Dimming function easily achievable

Relevant Competence Area:

Optical solutions
Optical and light consulting / Light Architecture

Thermal solutions
Heatsink engineering and manufacturing, Thermal management substrates, Thermal interface materials

Electronic solutions
Electronic and Controls Engineering, Electronics Manufacturing Services (EMS), IC driver manufacturers, Driver Circuit Supplier

Products used:

OSRAM – OSTAR Lighting LED
Texas Instruments – Driver Demoboard
Supertex – HV9910 Demoboard
STMicroelectronics – ICs driver board (L6562A, L6565D, STP8NM50)
Roal Electronics s.p.a. – Configurable 60W LED Driver
Fujipoly – SARCON® Thermal Interface Materials

Photo Credits:

Ulrich Kirchenberger, Ales Loidl, Pavel Koutensky – STMicroelectronics

Project Credits:

OSRAM Opto Semiconductors
Roal Electronics s.p.a.
STMicroelectronics
Texas Instruments
Supertex
Fujipoly

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