Single-phase two-stage boost rectifiers with sinusoidal input current

Neba, Yasuhiko; Ishizaka, Kouichi; Itoh, Ryozo

doi:10.1049/iet-pel.2008.0174

Cited by 8 publications

(10 citation statements)

References 8 publications

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“…With these assumptions, the circuit operation during one switching period T s can be described in four distinct operating stages. Figure 2 shows the four different operating modes of the B 5 converter operating in DCM/DCM. These operating modes can be briefly described as follows: 4 ] In this stage, the current i L3 continues to decrease through the free-wheeling diode D 5 until it becomes zero.…”

Section: Converter Operation Principlementioning

confidence: 99%

“…It is preferred to turn on the switch at t = t 4 , which will reduce the current stresses through the semiconductor devices, leading to a better overall efficiency. Figure 3 depicts the typical waveforms of the proposed B 5 converter operating in DCM/DCM.…”

Section: Converter Operation Principlementioning

confidence: 99%

“…That is, for the same duty cycle d, the B 5 converter provides the lowest voltage gain compared with the other topologies. This large step-down conversion ratio makes the proposed B 5 converter more suitable for applications with a high difference between the input and output voltages.…”

Section: Conditions For Dcmmentioning

confidence: 99%

“…This stage ends when the current i L2 reaches zero. Stage 4 [t 3 , t 4 ] In this stage, the current i L3 continues to decrease through the free-wheeling diode D 5 until it becomes zero. The converter stays in this stage until switch Q is turned on again.…”

Section: Single-stage Pfc Converter For Extreme Step-down Applicationsmentioning

confidence: 99%

“…In general, active PFC techniques can be divided into two categories: two-stage and single-stage approaches. The two-stage approach can achieve good performance at the expense of high cost, low power density, low conversion efficiency, and complicate control circuit, particularly in low-power applications [4][5][6]. To overcome these drawbacks, many single-stage PFC topologies have been proposed recently as a cost-effective approach for low-power applications to achieve both the function of high PFC and fast output voltage regulation.…”

Section: Introductionmentioning

confidence: 99%

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Single‐stage single‐switch PFC converter for wide‐input extreme step‐down voltage applications

Ismail

Al-Saffar

Sabzali

et al. 2011

Circuit Theory & Apps

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SUMMARYThis paper presents a new single-stage single-switch high power factor correction AC/DC converter suitable for low-power applications (< 150 W) with a universal input voltage range (90-265 V rms ). The proposed topology integrates a buck-boost input current shaper followed by a buck and a buck-boost converter, respectively. As a result, the proposed converter can operate with larger duty cycles compared with the existing single-stage singleswitch topologies, hence, making them suitable for extreme step-down voltage conversion applications. Several desirable features are gained when the three integrated converter cells operate in discontinuous conduction mode. These features include low semiconductor voltage stress, zero-current switch at turn-on, and simple control with a fast well-regulated output voltage. A detailed circuit analysis is performed to derive the design equations. The theoretical analysis and effectiveness of the proposed approach are confirmed by experimental results obtained from a 100-W/24-V dc laboratory prototype.

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Section: Converter Operation Principlementioning

confidence: 99%

Section: Converter Operation Principlementioning

confidence: 99%

Section: Conditions For Dcmmentioning

confidence: 99%

Section: Single-stage Pfc Converter For Extreme Step-down Applicationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Single‐stage single‐switch PFC converter for wide‐input extreme step‐down voltage applications

Ismail

Al-Saffar

Sabzali

et al. 2011

Circuit Theory & Apps

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show abstract

Analysis and design of reduced order linear quadratic regulator control for three phase power factor correction using Cuk rectifiers

Umamaheswari

Uma

2013

Electric Power Systems Research

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Analysis and implementation of a three‐phase power factor correction scheme using modular Cuk rectifier for balanced and unbalanced supply conditions

Umamaheswari¹,

Uma²,

Sangeetha³

2013

IET Power Electronics

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In this study, the analysis and design of a three-phase AC-DC converter followed by DC-DC Cuk converter modules to achieve unity power factor is presented. Two methods of reference current generation techniques are employed. In the first scheme, reference current is generated using instantaneous symmetrical component theory under balanced supply conditions. In the second scheme, extended synchronous detection methods such as equal current criterion, equal power criterion and equal impedance criterion are used for reference current generation under unbalanced supply conditions. The control strategy uses three hysteresis current controllers for source current shaping and an outer voltage loop with proportional-integral controller for load voltage regulation. To validate the proposed method, a prototype controlled by dSPACE signal processor is set up. Simulation and experimental results indicate that the proposed system offers regulated output voltage for wide load variations and provides power factor close to unity.

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Single-phase two-stage boost rectifiers with sinusoidal input current

Cited by 8 publications

References 8 publications

Single‐stage single‐switch PFC converter for wide‐input extreme step‐down voltage applications

Single‐stage single‐switch PFC converter for wide‐input extreme step‐down voltage applications

Analysis and design of reduced order linear quadratic regulator control for three phase power factor correction using Cuk rectifiers

Analysis and implementation of a three‐phase power factor correction scheme using modular Cuk rectifier for balanced and unbalanced supply conditions

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