Novel bridgeless PFC converters with low inrush current stress and high efficiency

Mino, K.; Matsumoto, Hiroyuki; Fujita, Satoru; Nemoto, Yuji; Kawasaki, Daisuke; Yamada, Ryuji; Tawada, Nobuyuki

doi:10.1109/ipec.2010.5542051

Cited by 12 publications

(3 citation statements)

References 8 publications

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“…Also, cascading multiple power stages leads to reduced overall efficiencies. The front end boost PFC stage typically has high in-rush current on startup, or needs additional components to limit the in-rush current [11] [12].…”

Section: A Brief Review Of Published Isolated Pfc Convertersmentioning

confidence: 99%

An Isolated Power Factor Corrected Power Supply Utilizing the Transformer Leakage Inductance

Conway

2019

IEEE Trans. Power Electron.

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The widespread use of electronic devices increases the need for compact power factor corrected power supplies. This paper describes an isolated power factor corrected power supply that utilizes the leakage inductance of the isolation transformer to provide boost inductor functionality. The bulk capacitor is in the isolated part of the power supply allowing for controlled startup without dedicated surge limiting components. A control method based on switch timing and input/output voltage measurements is developed to jointly achieve voltage regulation and input power factor control. A prototype design is implemented with detailed measurements and waveforms shown to confirm the desired functionality.

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Section: A Brief Review Of Published Isolated Pfc Convertersmentioning

confidence: 99%

An Isolated Power Factor Corrected Power Supply Utilizing the Transformer Leakage Inductance

Conway

2019

IEEE Trans. Power Electron.

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“…However, the component count is increased in any PFC bridgeless converter; although, the conduction losses are reduced. Various bridgeless converter configurations are reported in the literature which eliminate the diode drop in the current path, thereby improving the efficiency [8][9][10][11][12]. However, in these buck and boost configurations, the output voltage range is limited which makes it unsuitable for a computer power supply.…”

Section: Introductionmentioning

confidence: 99%

Improved power quality SMPS for computers using bridgeless PFC converter at front end

Singh

Bhuvaneswari

2014

2014 IEEE 6th India International Conference on Power Electronics (IICPE)

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This paper envisages to design, analyze and assess the performance of a new Power Factor Corrected (PFC) bridgeless converter based power supply for Personal Computers. The proposed Switched Mode Power Supply is a combination of a bridgeless converter operating as a PFC at the front end and an isolated converter at the back end for obtaining multiple dc output voltages. The proposed configuration eliminates the diode bridge at the front end thereby offering low conduction losses and high power quality in line with IEC-61000 standard norms. The front end converter offers fast dynamic response compounded with good output voltage regulation where the output is characterized by a low 100 Hz ripple. The performance of the proposed power supply is analyzed to validate the design and its improved performance is demonstrated by means of simulations.

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“…Several techniques have been proposed to improve the rectification efficiency in single-phase rectifiers, such as bridgeless [18]- [20] or totem-pole circuits [21]. In this sense, some bidirectional rectifiers based on SiC JFETs are also studied in [22].…”

mentioning

confidence: 99%

On the Use of Front-End Cascode Rectifiers Based on Normally On SiC JFET and Si MOSFET

Vázquez

Rodríguez

Fernández

et al. 2014

IEEE Trans. Power Electron.

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Abstract. -The new wide band-gap semiconductor devices provide new properties to be explored. Normally-on Silicon Carbide (SiC) JFET power devices have several advantages, in particular low switching losses and the potential capabilities of high temperature and high reverse blocking voltage. Looking for improving the overall efficiency in power converters, new structures based on these power devices might be studied. In this paper, a cascode rectifier based on normally-on SiC JFET is presented and analyzed. This rectification structure can be applied as front-end rectifier stage for AC-DC power converters, increasing the overall efficiency of these topologies. A second cascode rectifier based on Silicon (Si) MOSFET is also studied, as a low cost alternative. A simple static forward characterization and a brief dynamic behavior analysis of the proposed cascode rectifier structure are made. Both cascode structures are compared with traditional Si rectifier diodes and front-end rectifiers, using an active PFC interleaved boost converter. As a result of this comparison, an efficiency improvement as high as two points is obtained. An additional OR gate based on a diode is also used as second test circuit to compare the proposed structures to the traditional Si rectifiers. A reduction between 75% and 55% of the total loss are obtained in this second experimental test.

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Novel bridgeless PFC converters with low inrush current stress and high efficiency

Cited by 12 publications

References 8 publications

An Isolated Power Factor Corrected Power Supply Utilizing the Transformer Leakage Inductance

An Isolated Power Factor Corrected Power Supply Utilizing the Transformer Leakage Inductance

Improved power quality SMPS for computers using bridgeless PFC converter at front end

On the Use of Front-End Cascode Rectifiers Based on Normally On SiC JFET and Si MOSFET

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