A High-Voltage SiC-Based Boost PFC for LED Applications

León-Masich, Antonio; Valderrama-Blavi, Hugo; Bosque-Moncusí, Josep María; Martínez-Salamero, L.

doi:10.1109/tpel.2015.2418212

Cited by 54 publications

(17 citation statements)

References 24 publications

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“…These include a rectifier in cascade with a DC-DC converter and a capacitor used to regulate the current through the LEDs. However, this solution generates a significant ripple in the input current of the light emitting semiconductors and two stages are being incorporated to prevent "LED light-flickering problems" [29].…”

Section: Power Quality and Light-emitting Diode Driversmentioning

confidence: 99%

Power Quality and Energy Efficiency in the Pre-Evaluation of an Outdoor Lighting Renewal with Light-Emitting Diode Technology: Experimental Study and Amortization Analysis

2017

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Abstract:In this work, a practical methodology is proposed to analyze, before undertaking a large investment, an outdoor lighting installation renewal with light-emitting diode (LED) luminaires. The main problems found in many of the luminaires tested are associated with inrush peak currents in cold start (which may cause ignition problems with random shutdowns), the harmonic distortions caused by their AC/DC associated electronic nature driver, and their working and efficiency dependency on the ambient temperature. All these issues have been tested in the context of a large metal halide (MH) to LED luminaires lighting point renewal where six commercial LED projectors have been analyzed with the above considerations. This research has isolated a single-phase circuit powered with constant stabilized 230 V AC voltage source in a real public lighting installation. All of them have been sequentially installed and their main electrical and power-quality parameters measured and recorded. The results indicate that each luminaire option will influence the expected long-term reliability (>50.000 h or more as expressed by the U.S. Department of Energy) of the lighting installation (in the case poor power quality is generated on the grid). The economic analysis made to estimate the profitability of the investment may be severely affected by the difference between the declared and the real consumption values in which they perform in our specific installation.

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Section: Power Quality and Light-emitting Diode Driversmentioning

confidence: 99%

Power Quality and Energy Efficiency in the Pre-Evaluation of an Outdoor Lighting Renewal with Light-Emitting Diode Technology: Experimental Study and Amortization Analysis

2017

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“…In order to step-up the voltage or current with high gain, DC-DC power converters are essential in case of many applications e.g. photovoltaic and fuel cell energy conversion, uninterruptible power supply, DC microgrid, automobile, high intensity discharged lamp ballast, LED, hybrid vehicle, etc., for the utilization of low voltage sources [2]- [3]. As far as the conventional boost converter is concerned, theoretically, it provides a high voltage gain at a duty cycle value closer to unity.…”

Section: Introductionmentioning

confidence: 99%

A Novel Modified Switched Inductor Boost Converter With Reduced Switch Voltage Stress

Sadaf

Bhaskar

Meraj

et al. 2021

IEEE Trans. Ind. Electron.

114

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Recently, switched inductor (SI) and switched capacitor (SC) techniques in DC-DC converter are recommended to achieve high voltage by using the principle of parallel charging and series discharging of reactive elements. It is noteworthy that four diodes, one high voltage rating switch, two inductors are required to design classical SI Boost Converter (classical SIBC). Moreover, in classical SIBC, the switch voltage stress is equal to the output voltage. In this paper, modified SIBC (mSIBC) is proposed with reduced voltage stress across active switches. The proposed mSIBC configuration is transformer-less and simply derived by replacing the one diode of the classical switched inductor structure with an active switch. As a result, mSIBC required low voltage rating active switches, since the total output voltage is shared into two active switches. Moreover, the proposed mSIBC is low in cost, provides higher efficiency and required the same number of components compared to the classical SIBC. The Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM) analysis, the effect of non-idealities on voltage gain, design methodology and comparison are presented in detail. The operation and performance of the designed 500W mSIBC are experimentally validated under different perturbations.

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“…Generally, according to the number of stages of the power conversion, PFC converters can be classified as single-stage, two-stage and quasi-single-stage types. Singlestage type has advantages of high power factor (PF), high efficiency and small volume [3]- [4]. However, it exists an energy imbalance between the ac input side and the dc output side, regardless of which converter topologies or controlling methods are used.…”

Section: Introductionmentioning

confidence: 99%

Active-Clamp Resonant Power Factor Correction Converter With Output Ripple Suppression

Cao

Liu

et al. 2021

IEEE Access

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An active-clamp resonant power factor correction converter with output ripple suppression is proposed and analyzed. It combines a buck power factor correction (PFC) unit and a resonant dc-dc unit by sharing one active switch. With another active-clamp switch, a recycling path is built to recover the leakage inductance energy of transformer, which improves the efficiency and the voltage stress of active switch. The effect of voltage ripple of dc link on output can be suppressed by fast voltage mode control loop. Therefore, low output current or voltage ripple can be achieved. With small voltage ripple across output of buck unit, the turn on time of active switch is almost constant in a half line cycle. Therefore, power factor correction can be achieved with inductor current of buck unit operating in discontinuous conduction mode (DCM). Finally, a 65W high power factor (PF) converter prototype for LED driver application with 91.08% peak efficiency and low output current ripple is built to verify the analytical results.

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A High-Voltage SiC-Based Boost PFC for LED Applications

Cited by 54 publications

References 24 publications

Power Quality and Energy Efficiency in the Pre-Evaluation of an Outdoor Lighting Renewal with Light-Emitting Diode Technology: Experimental Study and Amortization Analysis

Power Quality and Energy Efficiency in the Pre-Evaluation of an Outdoor Lighting Renewal with Light-Emitting Diode Technology: Experimental Study and Amortization Analysis

A Novel Modified Switched Inductor Boost Converter With Reduced Switch Voltage Stress

Active-Clamp Resonant Power Factor Correction Converter With Output Ripple Suppression

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