Presentation is loading. Please wait.

Presentation is loading. Please wait.

Reference Design for Commercial Downlight with LED OS SSL AE LED Ch. Neureuther, Dr. A. Markytan.

Similar presentations


Presentation on theme: "Reference Design for Commercial Downlight with LED OS SSL AE LED Ch. Neureuther, Dr. A. Markytan."— Presentation transcript:

1 Reference Design for Commercial Downlight with LED OS SSL AE LED Ch. Neureuther, Dr. A. Markytan

2 Seite 2 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Reference Designs 1. Introduction 2. Commercial Downlights 3. Construction & Optical parts of the luminaire 4. Part list & involved suppliers & LLFY-partners 5. Illuminance simulation of the luminaire 6. Measurement of the luminaire 7. Thermals Engineering 8. Electrical Engineering 9. Conclusions

3 Seite 3 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Commercial Downlights

4 Seite 4 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Commercial Downlights RocketLIGHT DiscLIGHT

5 Seite 5 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Optical parts of Luminaire 1 2 LW W5KM JZ 7L Tc TYP = 5600 K 1 LED 71 lm x 37 = 2627 lm LCW W5AM-JXKX-4O9Q Tc TYP = 3500K 1 LED 63.5 lm x 37 = 2350 lm

6 Seite 6 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Part list of Luminaire + involved suppliers & LLFY-partnersOSRAMOS Jungbecker Fischerelektronik Bergquist HofmannLeiterplaten Fraen

7 Seite 7 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Illuminance simulation of Luminaire

8 Seite 8 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | L [cd/m2] 2500 mm f = 25 mm 3000 mm 2600 mm Luminaire Measurements on luminaire Rho = 0.9 Luminance distribution Lambertian wall

9 Seite 9 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Measurement on luminaire L [cd/m2] Luminance on Reflector E[lx] Illuminance distribution Em = 1007 lx L*π ρ E= Ω ο Ω0Ω0

10 Seite 10 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Measurement on luminaire Color distribution chromaticity coordinates x,y

11 Seite 11 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Thermal Considerations and Results emissivity correction factor = 0.95 ambient temperature = 22°C Rth JS max = 11 K/W (GD+) Rth FR4 (Thermal Vias) = 9.7 K / W Measured: P_min = 350mA* 2.85V = 0.99 W P_max = 350mA* 3.2V = 1.12 W T_heatsink = 40 °C T_solderpoint = 45 °C Tj ~ 55°C Phiv@55°C/Phiv@25°C ~ 0.94 dcx,dcy < -0.003

12 Seite 12 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Thermal Engineering / Components Thermal Interface: PCB: FR4 with thermal vias: FISCHER Heatsinks: SK 546 1000 AL SK 505 1000 AL

13 Seite 13 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Electrical Engineering - Luminaire Luminaire 37 x 1 W Golden DRAGON Argus 6 independent circuits Board Material: FR4 d = 0.8 mm Electric Layer (Cu) 35 µm Possible: µc (ATmega), PDs, NTC

14 Seite 14 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Electrical Engineering - Ballast Ballast Supertex Driver HV9931LG & Design Use of 2 boards, each 80V 350 mA PWM dimmable Prototype status

15 Seite 15 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Conclusions

16 Seite 16 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Spotlight White- HexLIGHT: Diamond Dragon LCW W5AP-LZMZ-4L8N

17 Seite 17 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | Tasklight White – BridgeLIGHT: OSTAR Helios CW

18 Seite 18 7. Lux et Color Veszpremiensis Szimposium | 2008 november 6 | OS SSL AE LED | LEDs used Downlight White - DiscLIGHT: Golden DRAGON Plus (LCW W5AM) Downlight White – RocketLIGHT: Golden DRAGON ARGUS (LW W5KM) Spotlight White- HexLIGHT: Diamond DRAGON (LCW W5AP) Tasklight White – BridgeLIGHT: OSTAR SMT in warmwhite


Download ppt "Reference Design for Commercial Downlight with LED OS SSL AE LED Ch. Neureuther, Dr. A. Markytan."

Similar presentations


Ads by Google