Projects per year
Abstract
This paper describes a patent-pending passive offline light-emitting diode (LED) driver that has no controlled semiconductor switches, electrolytic capacitors, auxiliary power supply, and control board. It can provide a fairly smooth current from the ac mains to drive LED strings. The new circuit has the advantages of high input power factor, high energy efficiency and luminous efficacy, long lifetime, stable luminous output, and high robustness against extreme weather conditions. In addition, over 90% of the driver material is recyclable, leading to reduction of electronic waste. It is particularly suitable public LED lighting systems, such as road lighting systems. Experimental results based on a 50-W system are included in the paper to confirm the validity of the proposal. Due to the circuit simplicity, an energy efficiency exceeding 93.6% has been achieved. © 2010 IEEE.
| Original language | English |
|---|---|
| Article number | 5451183 |
| Pages (from-to) | 2665-2672 |
| Journal | IEEE Transactions on Power Electronics |
| Volume | 25 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2010 |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Funding
This work was supported by the Hong Kong Research Grant Council under Project Project CityU 123508 also by the Center for Power Electronics, City University of Hong Kong.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Research Keywords
- AC motor drives
- dc-dc power conversion
- digital control
- electrostatic devices
- lamps
- light sources
- light-emitting diodes (LEDs)
- lighting
- lighting control
- piezoelectric devices
- plasma applications
- power conversion
- power electronics
- power-conversion harmonics
RGC Funding Information
- RGC-funded
Fingerprint
Dive into the research topics of 'A novel passive offline LED driver with long lifetime'. Together they form a unique fingerprint.Projects
- 1 Finished
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GRF: Systematical Study on Thermal Management of White LEDs
YAN, W. (Principal Investigator / Project Coordinator)
1/11/08 → 10/02/10
Project: Research
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