A Novel Primary-Side Regulation Scheme for Single-Stage High-Power-Factor AC-DC LED Driving Circuit

This paper integrates a novel primary-side regulation (PSR) scheme with a single-stage high-power-factor (PF) ac-dc light-emitting-diode (LED) driving circuit. The driving circuit is based on the combination of a buck-boost PF corrector and a flyback converter. The component amount, cost, and size c...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2013-11, Vol.60 (11), p.4978-4986
Main Authors: Li, Yan-Cun, Chen, Chern-Lin
Format: Article
Language:English
Subjects:
AC-DC converter
Capacitance
Equations
Inductance
Light emitting diodes
light-emitting-diode (LED) driving circuit
Noise
power factor (PF) corrector (PFC)
primary-side control
primary-side regulation (PSR)
Reactive power
single stage
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Summary:This paper integrates a novel primary-side regulation (PSR) scheme with a single-stage high-power-factor (PF) ac-dc light-emitting-diode (LED) driving circuit. The driving circuit is based on the combination of a buck-boost PF corrector and a flyback converter. The component amount, cost, and size can be significantly reduced by replacing the secondary-side regulation with the PSR. In this way, not only high performance but also low cost and small system size can be achieved. Above 0.97 PF and 82% efficiency are obtained from a 12-W (60 W replaced) LED bulb driver prototype.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2012.2224080