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Design considerations of an SEPIC PFC converter for driving multiple lighting LED lamps
Author(s) -
Chiu HuangJen,
Cheng ShihJen
Publication year - 2009
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.495
Subject(s) - led lamp , power factor , brightness , inductance , power (physics) , voltage , light emitting diode , led circuit , computer science , electrical engineering , engineering , electronic engineering , short circuit , physics , optics , quantum mechanics
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.