Design and implementation of high-power factor isolated Ćuk converter-based LED driver with SiC MOSFET

Şehirli, Erdal; Üstün, Özgür

doi:10.1007/s00202-022-01679-1

Cited by 6 publications

(15 citation statements)

References 31 publications

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“…Transfer functions are presented for isolated Ćuk PFC in (45), and LC filter in (46), LC with damping in (47), LCL with C in (49). They are approved by step responses in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Before analyzing the effect of DM filter structures, isolated PFC Ćuk converter's transfer function is derived in (45) with the values used in the application through (28). Each filter's transfer function can be cascaded to (45), and this make the analysis with linear methods possible.…”

Section: Applicationsmentioning

confidence: 99%

“…With the transfer function in (45), bode and root locus plot of isolated PFC Ćuk converter are sketched in Fig. 8.…”

Section: Applicationsmentioning

confidence: 99%

“…Grid connection of isolated PFC Ćuk converter is provided by LC with parallel damping filter so they have a cascade connection. By considering transfer functions in (37) and (45), overall transfer function in (47) is derived. Sketching root locus and bode plots of (47) which are linear methods, impact of the filter to the converter is analyzed with respect to control point of view.…”

Section: Lc Dm Filtermentioning

confidence: 99%

“…Calculation of the losses are realized under seven class, these are (DBR) diode bridge, magnetic core, output diode, copper, filter, switch, output capacitor as in 45 . Calculations are accomplished with (51), ( 52), ( 53), (54), (55), ( 56), (57), (58), (59), (60), (61), (62), ( 63), (64), (65), (66), (67).…”

Section: Loss Calculationsmentioning

confidence: 99%

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Examining the impacts of DM filters to PFC isolated Ćuk converter for DCM operation by comparing Si and SiC MOSFET

Şehirli

2023

Sci Rep

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Examining impacts of differential mode (DM) filter topologies covering pi, LC with damping, LC, LCL filter through isolated Ćuk single phase PFC converter is realized in this paper regarding to power factor, THD and efficiency. Application of PFC isolated Ćuk converter is conducted with 42 kHz switching frequency and 50 W power. Each filter is modeled, designed, and applied experimentally via isolated PFC Ćuk converter. Average model derivation based on state-space, for DCM operation of input side inductor of isolated PFC Ćuk converter that is not introduced in literature is the main contribution of the paper. Second main contribution is to analyze filter types by linear methods for the transfer functions cascading the converter and filter transfer functions, which is not presented for PFC converters. It is also presented that solely LCL filter which is not analyzed for PFC converters in detail in literature, does not give desired results. So, increasing the effectivity of LCL filter, new filter structure LCL with parallel C filter is proposed and modeled in this paper. Thanks to the applications, presented results of LCL with parallel C filter is better than others with 4.9% current THD and ‘1’ power factor. Proposed LCL filter ensures 45% reduction of total inductor value, comparing to LC filter. Besides, LCL with C filter provides better control characteristics with maximum allowable gain for stability as 0.7585 higher than other topologies. Moreover, practical design methodology of filter types avoiding complex mathematical procedure is given in this paper. Applications with each filters provide THD requirements, obtained 4.9% as a best value, lower than IEC61000-3-2 standard. Maximum percentage improvement comparing to the IEC61000-3-2 is 27.5% for third harmonic. Furthermore, SiC and Si Mosfets are employed separately in the converter and compared by using each DM filters regarding to power factor, THD, efficiency through applications. As a result, better efficiency with SiC Mosfet as 83% and better THD with Si Mosfet as 4.9% are conducted.

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“…Transfer functions are presented for isolated Ćuk PFC in (45), and LC filter in (46), LC with damping in (47), LCL with C in (49). They are approved by step responses in Fig.…”

Section: Resultsmentioning

confidence: 99%

Section: Applicationsmentioning

confidence: 99%

“…With the transfer function in (45), bode and root locus plot of isolated PFC Ćuk converter are sketched in Fig. 8.…”

Section: Applicationsmentioning

confidence: 99%

Section: Lc Dm Filtermentioning

confidence: 99%

Section: Loss Calculationsmentioning

confidence: 99%

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Examining the impacts of DM filters to PFC isolated Ćuk converter for DCM operation by comparing Si and SiC MOSFET

Şehirli

2023

Sci Rep

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Improving DC power supply performance: insights into Cuk and modified Cuk converters' stability and power factor

Patel,

Vyas

2024

Eng. Res. Express

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The conversion of alternating current (AC) to direct current (DC) is pivotal for modern electrical systems, significantly influencing power delivery efficiency and stability. As the reliance on DC-powered electronic devices grows, optimizing AC-DC converters becomes increasingly important. Various converter topologies, including buck, boost, buck-boost, Cuk, and SEPIC configurations, exhibit unique characteristics that affect their efficiency and impact on the power grid.This study examines the performance of Cuk and modified Cuk converters, utilizing PSIM software to simulate these converters for a 1.4 kW power supply. The simulations reveal that both the Cuk and modified Cuk converters achieve reduced ripple in voltage and current outputs, addressing a significant concern for DC power supplies. Additionally, the modified Cuk converter demonstrates a marked reduction in the total harmonic distortion (THD) of the source current.This study explored the interaction between converter topologies and varying load conditions, emphasizing their impact on power factor—a measure of electrical power consumption. A higher power factor indicates improved efficiency and reduced reactive power, benefiting both the electrical system and the grid. The research further investigates how load variations affect power factor and converter performance, providing insights into designing converters that enhance system reliability and efficiency.By validating the simulation results with experimental data, it has been established that the modified Cuk converter topology offers superior performance and stability. This advancement supports the development of converters that optimize power factor and energy consumption, which are crucial for advancing electrical infrastructure. By bridging the gap between simulation and real-world performance, this work aims to provide valuable insights that can inform future enhancements in domestic EV charging infrastructure, ultimately contributing to the broader adoption of electric vehicles.

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Modeling and Controller Design for a GaN-based AC-DC LED Driver

Ramezankhani,

Arabshahi,

Khaburi

et al. 2024

2024 11th Iranian Conference on Renewable Energy and Distribution Generation (ICREDG)

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Design and implementation of high-power factor isolated Ćuk converter-based LED driver with SiC MOSFET

Cited by 6 publications

References 31 publications

Examining the impacts of DM filters to PFC isolated Ćuk converter for DCM operation by comparing Si and SiC MOSFET

Examining the impacts of DM filters to PFC isolated Ćuk converter for DCM operation by comparing Si and SiC MOSFET

Improving DC power supply performance: insights into Cuk and modified Cuk converters' stability and power factor

Modeling and Controller Design for a GaN-based AC-DC LED Driver

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