A Single-Stage SEPIC PFC Converter for Multiple Lighting LED Lamps

—This paper presents a SEPIC PFC converter for driving multiple lighting LED lamps. With the aid of this converter, high power factor and high efficiency can be achieved by a simple single-stage circuit with low device stress features. A burst-mode dimming method is used to regulate the current and brightness of multiple LED lamps. A laboratory prototype is also built and tested. With the prototype, high power factor can remain under universal input voltage operation and individual lamp brightness control. Keywords—SEPIC PFC Converter, Multiple Lighting LED Lamps, Single-Stage, Burst-Mode

• Type: Conference
• Year: 2008
• Where: DELTA
• Authors: Hsiu-Ming Huang, Shih-Hsiung Twu, Shih-Jen Cheng, Huang-Jen Chiu
• Keywords: DELTA 2008, Information Management, Led Lamps, Lighting Led Lamps, Pfc Converter