Principle of synthesizing single-stage converters for off-line applications

Wu, T.-F.; Yu, T.-H.; Liu, Y.-C.

doi:10.1109/apec.1998.647725

Cited by 8 publications

(3 citation statements)

References 40 publications

(14 reference statements)

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“…An additional switch is required. Extensive syntheses were performed in [46], [47] that yielded many families of single stage PFC rectifiers based on dither effect [46] and partial energy processing [47]. These two papers present interesting teaching from the principle of synthesis as well as analysis to the implementation of the new circuits, thus are valuable to researchers in the power factor correction area.…”

Section: Review Of Single Stage Pfc Topologiesmentioning

confidence: 98%

A topology survey of single-stage power factor corrector with a boost type input-current-shaper

Qiao

Smedley

2001

IEEE Trans. Power Electron.

333

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A topological review of the single stage power factor corrected (PFC) rectifiers is presented in this paper. Most of reported single-stage PFC rectifiers cascade a boost-type converter with a forward or a flyback dc-dc converter so that input current shaping, isolation, and fast output voltage regulation are performed in one single stage. The cost and performance of single-stage PFC converters depend greatly on how its input current shaper (ICS) and the dc-dc converter are integrated together. For the cascade connected single-stage PFC rectifiers, the energy storage capacitor is found in either series or parallel path of energy flow. The second group appears to represent the main stream. Therefore, the focus of this paper is on the second group. It is found that many of these topologies can be implemented by combining a two-terminal or three-terminal boost ICS cell with dc-dc converter along with an energy storage capacitor in between. A general rule is observed that translates a three-terminal ICS cell to a two-terminal ICS cell using an additional winding from the transformer and vice versa. According to the translation rule, many of reported single-stage PFC topologies can be viewed as electrically equivalent to one another. Several new PFC converters were derived from some existing topologies using the translation rule.

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Section: Review Of Single Stage Pfc Topologiesmentioning

confidence: 98%

A topology survey of single-stage power factor corrector with a boost type input-current-shaper

Qiao

Smedley

2001

IEEE Trans. Power Electron.

333

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show abstract

“…An additional switch is required. Extensive syntheses were performed in [21], [22] that yielded many families of single stage PFC rectifiers based on dither effect [21] and partial energy processing [22]. These two papers present interesting teaching from the principle of synthesis as well as analysis to the implementation of the new circuits, thus are valuable to researchers in the power factor correction area.…”

Section: Topologiesmentioning

confidence: 99%

Power Factor Improvement With High Efficiency Converters

Babu¹,

Chandrudu²

2012

IOSRJEN

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Abstract-New recommendations and future standards have increased the interest in power factor improvement circuits.There are multiple solutions in which line current is sinusoidal. In addition, in the recent years, a great number of circuits have been proposed with non sinusoidal line current. In the proposed circuit, the power factor is improved by using an auxiliary winding coupled to the transformer of a cascade DC/DC fly back converter. The auxiliary winding is placed between the input rectifier and the low-frequency filter capacitor to serve as a magnetic switch to drive an input inductor. The proposed approach is primarily based on the concept of inductive effect, from which PFC cells composed of energy buffers and high-frequency signals are introduced. Since the DC/DC fly back converter is operated at high-switching frequency, the auxiliary windings produce a high frequency pulsating source such that the input current conduction angle is significantly lengthened and the input current harmonics is reduced. Properly selecting an eligible PFC cell and inserting it in between input rectifier and dc-link capacitor can yield an SSC which can improve the input power factor significantly.

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“…Since input current is the sum of average currents given in (4) and (5), and the current gain M I is …”

Section: ) Voltage Gainmentioning

confidence: 99%

A Single-Stage Symmetrical-Output-Voltage Push-Pull Boost Converter with a Notch Filter for Input-Current-Shaping

Coelho

Oliveira

Farias

et al.

Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06.

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The Push-Pull Boost topology when properly driven becomes a suitable approach for power factor correction in a single power stage scheme. In addition, input current ripple can be attenuated using an improved notch filter, tuned at switching frequency. In order to obtain high power quality and symmetrical output voltage for dc-ac applications, a Single-Stage Push-Pull Boost Converter with Notch Filter is proposed. This scheme provides isolation, high bandwidth control and low complexity, reaching therefore high efficiency, low component count and low cost.Index terms-power factor correction, single-stage converter, input current shaper, symmetrical output voltage.

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Principle of synthesizing single-stage converters for off-line applications

Cited by 8 publications

References 40 publications

A topology survey of single-stage power factor corrector with a boost type input-current-shaper

A topology survey of single-stage power factor corrector with a boost type input-current-shaper

Power Factor Improvement With High Efficiency Converters

A Single-Stage Symmetrical-Output-Voltage Push-Pull Boost Converter with a Notch Filter for Input-Current-Shaping

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