Analysis and evaluation of interleaving techniques in forward converters

Zhang, M.T.; Jovanovic, M.M.; Lee, F.C.Y.

doi:10.1109/63.704139

Cited by 175 publications

(42 citation statements)

References 5 publications

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“…Therefore, to get the required efficiency for a 15 kW converter meant that these devices would have to be connected in parallel or the converter would have to be divided into lower-rated, parallel sub-modules. The latter solution was chosen as it gave the opportunity to interleave the switching of individual modules [10,11], which gives the benefit of a higher overall switching frequency for the converter. The optimum rating of the sub-modules, which gave the highest overall total, converter efficiency was found to be around 1 kW.…”

Section: Comparison Of Converter Topologiesmentioning

confidence: 99%

Power electronic interfaces for low voltage residential networks

Zacharis

Cross

Godfrey

2013

2013 15th European Conference on Power Electronics and Applications (EPE)

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A proposal to increase the existing residential LV grid voltage from 230 V to 300 V has been made in order to increase existing network capacity. A power-electronic AC-AC converter is then used to provide 230 V at each property. The equipment can also provide power-quality improvements to the network and load. Several constraints such as temperature rise at the converter location lead to a converter design requiring very high efficiency. In this paper different AC/AC converter topologies are presented which compares the power quality benefits, size and efficiency of each converter. The design and the control technique of the most suitable topology are verified using simulation and preliminary experimentally results of prototype hardware are also included.

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Section: Comparison Of Converter Topologiesmentioning

confidence: 99%

Power electronic interfaces for low voltage residential networks

Zacharis

Cross

Godfrey

2013

2013 15th European Conference on Power Electronics and Applications (EPE)

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“…The advantages of the parallel converter over a single large power converter [1,2] are: (i) distributes the thermal stress, magnetics and their power losses, (ii) can eliminate the hot spots occurring in the power supplies, (iii) individual module can be operated at a higher switching frequency, (iv) gives the opportunity to reduce the size of magnetics, etc. There are three di erent methods for controlling these parallel converters, viz.…”

Section: Introductionmentioning

confidence: 99%

Signal flow graph modelling of interleaved buck converters

Veerachary¹,

Senjyu²,

Uezato³

2003

Circuit Theory & Apps

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SUMMARYThis paper presents a systematic development of uniÿed signal ow graph model for an interleaved buck converter system operating in continuous inductor current mode. From this signal ow graph small, large-signal and steady-state models are developed, which are useful to study the converter dynamic and steady-state behaviour. Converter performance expressions like steady-state voltage gain, e ciency expressions and other small-signal characteristic transfer functions are derived. Development of uniÿed signal ow graph is explained for a 3-cell interleaved converter system. Derivation of large, small-signal and steady-state models from the uniÿed signal ow graph is demonstrated by considering a 2-cell interleaved buck converter system. Large signal model was programmed in TUTSIM simulator, and the large-signal responses against supply, load disturbances were predicted. Signal ow graph analysis results are validated with PSIM simulations. Further, the mathematical models obtained from the signal ow graph modelling are in agreement with those obtained from the state-space averaging technique.

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“…One of the circuits that are suitable to the converters with the low-voltage/high-current output is an interleaved dc/dc converter [9]- [11]. The interleaving means that N identical converters are connected in parallel and the currents through the each switch is dispersed.…”

Section: B Interleaving Techniquementioning

confidence: 99%

An interleaved class E² dc/dc converter

Katayama

Sekiya

Yahagi

2008

2008 IEEE International Symposium on Circuits and Systems (ISCAS)

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Abstract-This paper presents an interleaved class E 2 dc/dc converter. In the proposed converter, N class E 2 dc/dc converters are connected in parallel at the class E rectifier. The proposed converter is suitable to the low-voltage/high-current applications. Since less current flows through the each converter, the amount of the power losses on the parasitic resistances are also reduced. In addition, the output filter of the rectifier is downsized because of higher frequency of the interleaved current. By carrying out the circuit experiments, we show that the experimental results agree with the numerical ones quantitatively. The laboratory measurement achieves the over 90% power conversion efficiency under 3.2W and 1MHz operation.

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Analysis and evaluation of interleaving techniques in forward converters

Cited by 175 publications

References 5 publications

Power electronic interfaces for low voltage residential networks

Power electronic interfaces for low voltage residential networks

Signal flow graph modelling of interleaved buck converters

An interleaved class E² dc/dc converter

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Analysis and evaluation of interleaving techniques in forward converters

Cited by 175 publications

References 5 publications

Power electronic interfaces for low voltage residential networks

Power electronic interfaces for low voltage residential networks

Signal flow graph modelling of interleaved buck converters

An interleaved class E2 dc/dc converter

Contact Info

Product

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About

An interleaved class E² dc/dc converter