Boost-buck push-pull converter for very wide input range single stage power conversion

Albrecht, J.J.; Young, Joo; Peterson, William A.

doi:10.1109/apec.1995.468966

Cited by 21 publications

(14 citation statements)

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“…Moreover, for those applications where isolation is important, it is also possible to provide the required isolation in a dc/ac inverter for ac or grid-tied applications. Moreover, in many avionics systems, the power supply is required to operate over a very wide input voltage range or provide an output with reverse polarity; these make a push-pull converter a good candidate for those applications [3]. Recently many attempts to improve the efficiency and overall performance of push-pull converters have been reported [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Direct Energy Transfer for High Efficiency Photovoltaic Energy Systems Part II: Experimental Evaluations

Dehbonei

Lee

2009

IEEE Trans. Aerosp. Electron. Syst.

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This two-part paper presents a comprehensive comparative study on parallel power processing (PPP) and standard schemes in dc/dc converters for photovoltaic (PV) energy systems. It is demonstrated how PPP can improve direct energy transfer (DET), which results in PV systems operating at higher voltage and efficiency. Discussions of the concepts, hypotheses, and computer simulations are presented in Part I. Part II provides the experimental results, which confirm the validity of the analysis and simulations.

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Section: Introductionmentioning

confidence: 99%

Direct Energy Transfer for High Efficiency Photovoltaic Energy Systems Part II: Experimental Evaluations

Dehbonei

Lee

2009

IEEE Trans. Aerosp. Electron. Syst.

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“…However, a disadvantage of the topology is that the boost characteristic sets a lower limit for the output voltage, which introduces in-rush current during start-up from zero output voltage, as well as during fault situations such as output short circuit. Fig.1 shows a common solution to the start-up problem [6], [7]. A flyback winding is arranged on the boost inductor, such that the converter may operate as a flyback converter during start-up with the associated buck-boost voltage modulation factor allowing control of the output voltage all the way down to zero volts.…”

Section: Introductionmentioning

confidence: 99%

A new method for start-up of isolated boost converters using magnetic- and winding-integration

Lindberg-Poulsen

Ouyang

Sen

et al. 2012

2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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Abstract-A new solution to the start-up and low output voltage operation of isolated boost family converters is presented. By the use of integrated magnetics and winding integration, the transformer secondary winding is re-used during start-up as a flyback winding coupled to the boost inductor. The traditional added flyback winding coupled to the boost inductor is thus eliminated from the circuit, bringing substantial cost savings, increased efficiency and simplified design. Each subinterval of the converter operation is described through electrical and magnetic circuit diagrams, and the concept is extended to other isolated boost family topologies. The principle of operation is demonstrated with a 800W isolated boost prototype, and a 1600W primary parallel series secondary isolated boost converter. Efficiency measurements of both prototypes are presented, including measurements during both start-up and normal boost operation.

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“…A substantial amount of work has been reported pertaining to the three-phase boost converter [14] and push-pull rectifiers [15]. These converter topologies often require high frequency transformer for galvanic isolation and also offer a unity input power factor which is applicable only for low power supply applications.…”

Section: Introductionmentioning

confidence: 99%

High performance improved three-phase power converter for telecom power systems

Kalpana

Singh

Bhuvaneswari

2012

2012 International Conference on Advances in Power Conversion and Energy Technologies (APCET)

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In this paper a high performance improved threephase power converter in modular approach for telecom power systems is proposed. The proposed system is formed by three single-phase modules with series connected dc outputs. The series connection of converter yields balanced dc link currents and galvanic isolation with the use of a high frequency transformer. Further it also and provides 6-pulse rectification, both together resulting in a small output filter components. The design methodology of the proposed converter is illustrated with an example. The design concepts are verified by the digital simulation of the proposed converter.

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Boost-buck push-pull converter for very wide input range single stage power conversion

Cited by 21 publications

References 0 publications

Direct Energy Transfer for High Efficiency Photovoltaic Energy Systems Part II: Experimental Evaluations

Direct Energy Transfer for High Efficiency Photovoltaic Energy Systems Part II: Experimental Evaluations

A new method for start-up of isolated boost converters using magnetic- and winding-integration

High performance improved three-phase power converter for telecom power systems

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