Our mission is to develop energy efficient, environmentally friendly lighting solutions for indoor...
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Our mission is to develop energy efficient, environmentally friendly lighting solutions for indoor and outdoor applications Collaborative Design Innovation in LED
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Transcript of Our mission is to develop energy efficient, environmentally friendly lighting solutions for indoor...
Our mission is to develop energy efficient, environmentally friendly lighting solutions for indoor and outdoor applications
Collaborative Design Innovation in LED
Contents1. LED Driver Selection Criteria
2. Collaborative approach to achieve end application goal
3. Collaboration Scope
4. Harvard – Sylvania Case Study
5. Conclusions
Driver Key Selection Criteria
Performance
Cost
ReliabilityFeatures
Size
Driver Key Selection Criteria Cont.
Efficiency
Power Factor
Surge Rating
Compliance
Performance
0.00W 2.00W 4.00W 6.00W 8.00W 10.00W 12.00W 14.00W 16.00W50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00CL Driver Efficiency & PF Optimisation
CL350 Efficiency CL350L Efficiency
CL350 PF CL350L PF
Power (W)
Effici
ency
(%)
Pow
er F
acto
r
Driver Key Selection Criteria Cont.
Thermals
Electrolytic
Reliability&
Lifetime
CLR50/CL50 CL Standard / CLK
Driver Key Selection Criteria Cont.
Application Constraints
Standard Product?
Size
Driver Key Selection Criteria Cont.
Dimming
Adjustable OutputThermal Feedback
Auxiliary o/p
Bells & Whistles?
Features
Driver Key Selection Criteria Cont.
Cost
Collaboration Scope
Collaborative Paths
LED Boards Drivers
Harvard – Havells Sylvania Collaboration
1. Why?
• Mainly Size / Form Factor
• Targeted Performance
• Interface
• Optimum total cost of final product
Harvard – Sylvania Collaboration Cont.
1. Project:
• Develop bespoke LED driver
• ~18W power • switchable
output• 1-10V dimming
• Efficiency >87%
• PF > 0.95
• Reliability > 50,000 hours
Harvard – Sylvania Collaboration Cont.
1. Challenges
• Space
• Interface
• Safety Clearances
• Time & Cost
Kick Off Specification Agreed
Concept Agreed
Samples Delivery
Samples Approval
Design Modifications Volume Delivery
Harvard – Sylvania Collaboration Cont.
1. Successful Project
• On time
• To Specification
http://www.havells-sylvania.com/led/lumiance/Inverto
Conclusions1. Standard product
may not be suitable for all applications
2. Optimisation around the application can be beneficial in certain cases
3. Close collaboration can yield win-win scenario
4. Collaboration is easy
Thank you
