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

Huang, Hsiu-Ming; Twu, Shih-Hsiung; Cheng, Sui Sun; Chiu, Huang-Jen

doi:10.1109/delta.2008.8

Cited by 19 publications

(4 citation statements)

References 9 publications

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“…A SEPIC PFC converter is depicted in Figure 8. 76 This topology has attractive features such as high efficiency, high power factor and reduced device stresses. A burstmode dimming is applied to adjust the current through them.…”

Section: A Sepic Converter For Multiple Lighting Led Applicationsmentioning

confidence: 99%

An overview of energy efficient solid state LED driver topologies

Yadlapalli

Narasipuram²,

Anuradha³

2019

Int J Energy Res

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LED lamps are projected as prospective successors of incandescent lamps with high efficiency and a long lifetime. Therefore, there is a need to develop energy efficient LED driver topologies for achieving constant current regulation, despite the effects of temperature on the LED V-I characteristics. This paper presents the salient features of various LED driver topologies with a focus on power density, multi-string operation, renewable energy utilization, soft switching, optical wireless communication, reliability and size. The performance of the above topologies is analysed in terms of the number of components, converter switching frequency, galvanic isolation, power rating and efficiency. This paper takes a look at efficiency improvement methods while dwelling on aspects of lifetime and reliability prediction of LED drivers. The paper will anticipate some of the future trends associated with the adaptation of wide bandgap power semiconductor materials, smart LED lighting for the internet of things (IoT) and programmable LED lamp drivers. This detailed technology review is extremely useful for researchers, designers and engineers in choosing the right topology.

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Section: A Sepic Converter For Multiple Lighting Led Applicationsmentioning

confidence: 99%

An overview of energy efficient solid state LED driver topologies

Yadlapalli

Narasipuram²,

Anuradha³

2019

Int J Energy Res

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“…The corresponding PWM controller series connected with every LED lamp raises the circuit complexity and cost. Furthermore, the uncontrollable current amplitude will shorten the lifetime of the LED lamp [7], [8]. A novel LED driver with self-adaptive drive voltage was presented in [9].…”

Section: Introduction Lmentioning

confidence: 99%

A High-Efficiency Dimmable LED Driver for Low-Power Lighting Applications

Chiu

Chen

et al. 2010

IEEE Trans. Ind. Electron.

402

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Abstract-This paper presents a dimmable light-emitting diode (LED) driver with adaptive feedback control for low-power lighting applications. An improved pulsewidth modulation dimming technique is studied for regulating the LED current and brightness. Under universal input voltage operation, high efficiency and high power factor can be achieved by a coupled inductor singleended primary inductance converter power factor correction (PFC) converter with a simple commercial transition-mode PFC controller. The operation principles and design considerations of the studied LED driver are analyzed and discussed. A laboratory prototype is also designed and tested to verify the feasibility.Index Terms-Coupled inductor single-ended primary inductance converter power factor correction (SEPIC PFC), dimmable light-emitting diode (LED) driver, universal input voltage.

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“…The latter is usually employed working in discontinuous conduction mode (DCM) [8], [9]. The main drawbacks of these preregulators are, on one hand, the high peak-current stresses and serious EMI problem caused by the DCM operation [7] and, on the other hand, the poor dynamics that these converters perform. Moreover, dimming of LEDs must be carried out at frequencies above 125 Hz.…”

mentioning

confidence: 99%

“…A good solution is to implement the so-called integrated single-stage (ISS) converters, which leads to the integration of the PFC stage together with the dc-dc converter [7]- [18]. This is achieved by eliminating one transistor and sharing the remaining transistor between the two stages.…”

mentioning

confidence: 99%

A Universal-Input Single-Stag2e High-Power-Factor Power Supply for HB-LEDs Based on Integrated Buck–Flyback Converter

Gacio

Alonso

Calleja

et al. 2011

IEEE Trans. Ind. Electron.

199

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Due to the high rise in luminous efficiency that highbrightness light-emitting diodes (HB-LEDs) have experienced in recent years, many new applications have been researched. This paper covers a streetlight LED application using the offline integrated buck-flyback converter (IBFC) developed in previous works. In this application, the converter is used to provide powerfactor correction from a universal ac source. A control loop using the LM3524 IC has been implemented for testing the feasibility of Enabling pulsewidth modulation dimming mode. First, the LED load has been linearized and modeled in order to calculate the IBFC topology properly. Second, the converter has been designed and tested at the laboratory. The converter has also been modeled in order to design a fixed-frequency constant-current control. The dynamics of all the stages involved in the closed loop have been taken into account in order to develop an adequate controller. Finally, the experimental results obtained from the laboratory tests are discussed.

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

Cited by 19 publications

References 9 publications

An overview of energy efficient solid state LED driver topologies

An overview of energy efficient solid state LED driver topologies

A High-Efficiency Dimmable LED Driver for Low-Power Lighting Applications

A Universal-Input Single-Stag2e High-Power-Factor Power Supply for HB-LEDs Based on Integrated Buck–Flyback Converter

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