Design considerations of an SEPIC PFC converter for driving multiple lighting LED lamps |
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| Authors: | Huang‐Jen Chiu Shih‐Jen Cheng |
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| Affiliation: | Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan |
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| Abstract: | This paper presents a single‐ended primary inductance power‐factor‐correction converter (SEPIC PFC) 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. Copyright © 2008 John Wiley & Sons, Ltd. |
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| Keywords: | SEPIC PFC converter multiple lighting LED lamps single stage burst mode |
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