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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sanghyun Cha Deukhee Park Yuenjoong Lee Changseok Lee Joongho Choi Jaeshin Lee Hyobum Lee |
| Copyright Year | 2012 |
| Description | Author affiliation: Samsung Electro-Mechanics Co., Suwon, Republic of Korea (Sanghyun Cha; Deukhee Park; Yuenjoong Lee; Changseok Lee; Jaeshin Lee; Hyobum Lee) || University of Seoul, Republic of Korea (Joongho Choi) |
| Abstract | This paper presents a noble AC/DC converter-free LED driver for LED lighting applications. The presented LED driver applies the AC mains power directly to the LED strings with no AC/DC converter stage, thus bulky transformer and life-time limiting electrolytic capacitor no longer needed. This small-sized, low-cost and reliable LED lighting driver was realized with an LED driver IC, which selectively empowers multi-channel LED strings based on the measured input AC voltage signal. The IC was fabricated in 1-um high voltage BCD process capable of handling AC input voltage up to 240 V. By PWM-controlling the LED-driving high-voltage switches, the IC resolved the thermal issue which is critical for the reliability of LED lighting module. A 4-W prototype LED driver module was implemented and tested to verify the feasibility of the suggested Converter-/Capacitor-less (ie. CC-less) LED driver scheme for low cost LED lighting. |
| Starting Page | 706 |
| Ending Page | 708 |
| File Size | 1254681 |
| Page Count | 3 |
| File Format | |
| ISBN | 9781457702303 |
| ISSN | 21583994 |
| e-ISBN | 9781457702310 |
| DOI | 10.1109/ICCE.2012.6162049 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-01-13 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Light emitting diodes Lighting Integrated circuits Prototypes DC-DC power converters Capacitors Pulse width modulation |
| Content Type | Text |
| Resource Type | Article |
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