A high power, high frequency, DC to DC converter for space applications

Weinberg, A. H.; Boldo, Pablo Rueda

doi:10.1109/pesc.1992.254756

Cited by 33 publications

(18 citation statements)

References 3 publications

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“…But spike exists in output current, which disturbs the measurement of output current [18]. To overcome this problem, ECSM is adopted.…”

Section: Equivalent Current Sampling Methodsmentioning

confidence: 99%

“…For PPCWCCs with single inductor, the current of single inductor is equivalent as the output current without spike [21]. For PPCWCCs generated from push-pull cell II with coupled inductor, the input current and secondary current of coupled inductor can be added to substitute for output current [18] . If ECSM is adopted, the sampled current doesn't need to be filtered, which eliminates the sampling time delay and achieves excellent dynamic performance.…”

Section: Equivalent Current Sampling Methodsmentioning

confidence: 99%

“…Although output current of Weinberg converter is low-ripple, the spike exists in output current. Reference [17] and [18] analyze the current spike of Weinberg converter briefly. However, the current spike hasn't been analyzed in detail, such as the magnitude and average value of current spike.…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Transformer Leakage Inductance on the Steady State Performance of Push-pull based Converter with Continuous Current

Chen¹,

Zheng²,

Li³

et al. 2013

Journal of Power Electronics

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As a result of the advantages such as high efficiency, continuous current and high stability margin, push-pull converter with continuous current (PPCWCC) is competitive for battery discharge regulator (BDR) which plays an important role in power conditioning unit (PCU).Leakage inductance yields current spike in low-ripple current of PPCWCCs. The operating modes are added due to leakage inductance. Therefore the steady state performance is affected, which is embodied in the spike of low-ripple current. PPCWCCs which are suitable for BDR can be separated into three types by current spike characteristics. Three representative topologies IIs1, IIcb2 and Is3 are analyzed in order to investigate the factors on the magnitude and duration of spike. Equivalent current sampling method (ECSM) which eliminates the sampling time delay and achieves excellent dynamic performance is adopted to prevent the spike disturbance on current sampling. However, ECSM reduces the sampling accuracy and telemetry accuracy due to neglecting the spike. In this paper, ECSM used in PPCWCCs is summarized. The current sampling error is analyzed in quality and quantity, which provides the foundation for offsetting and enhancing the telemetry accuracy. Finally, current sampling error rate of three topologies is compared by experiment results, which verify the theoretical analysis.

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“…But spike exists in output current, which disturbs the measurement of output current [18]. To overcome this problem, ECSM is adopted.…”

Section: Equivalent Current Sampling Methodsmentioning

confidence: 99%

Section: Equivalent Current Sampling Methodsmentioning

confidence: 99%

See 1 more Smart Citation

The Effect of Transformer Leakage Inductance on the Steady State Performance of Push-pull based Converter with Continuous Current

Chen¹,

Zheng²,

Li³

et al. 2013

Journal of Power Electronics

View full text Add to dashboard Cite

show abstract

“…First, all of the topologies are proposed except for topologies Is [15], IIs [14], IIIc-1 [13][14][15][16][17] and IIIc-6 [18]. Among the thirty five topologies, topologies IIIc-2, IIIc-4 and IIIc-6 (with low-ripple input current) are equivalent to topology IIIs; topologies IVc-2, IVc-4 and IVc-6 (with low-ripple input current) are equivalent to topology IVs; and topologies Vc-2, Vc-4 and Vc-6 (with low-ripple input current) are equivalent to topology Vs.…”

Section: Converter Characteristicsmentioning

confidence: 99%

Research on High Efficiency Non-Isolated Push-Pull Converters with Continuous Current in Solar-Battery Systems

Li¹,

Zheng²,

Qian³

2014

Journal of Power Electronics

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In order to improve the output efficiency of solar cells and to extend the life span of batteries, the input currents of converters are required to be continuous. If low output voltage ripple is required at the same time, it is obvious that the application of basic two-order converters (such as Buck and Boost derived converters) will not be good enough. In this paper, a lot of non-isolated push-pull converters (NIPPCs) with continuous current will be introduced due to their lower current stress, higher efficiency and better EMC performance. By decomposing the converters into push-pull cells, inductor and free-wheeling diodes, two families of NIPPCs based on single inductor and coupled inductor separately are systematically generated. Furthermore, characteristics analyses for some of the generated converters are also shown in this paper. Finally, two prototypes based on the corresponding typical topologies are built in the lab to verify the theoretical outcomes.

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“…The normal boost converter is not suitable for BDR because of its low efficiency, instability, and discontinuous output current. So far, the topologies that have been used in BDR are phase‐shift full bridge (PSFB), Super‐boost, Smart Add on, HE‐Boost, and Weinberg.…”

Section: Introductionmentioning

confidence: 99%

Research on the optimal design of weinberg converter

Chen¹,

Qiu²,

Liang³

et al. 2018

IEEJ Transactions Elec Engng

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Because of its advantages of continuous input and output currents, stable transfer function, and high efficiency, the Weinberg converter is used as battery discharge regulator. Its working principle under overlap and nonoverlap modes with stray parameters is analyzed. Then a design method is proposed to optimize the parameters. In order to estimate the heat distribution, the power loss is calculated according to the performance parameters, and then the efficiency trend is achieved toward the output current. In addition, the experimental results verify the optimal design using a 600 W prototype. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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A high power, high frequency, DC to DC converter for space applications

Cited by 33 publications

References 3 publications

The Effect of Transformer Leakage Inductance on the Steady State Performance of Push-pull based Converter with Continuous Current

The Effect of Transformer Leakage Inductance on the Steady State Performance of Push-pull based Converter with Continuous Current

Research on High Efficiency Non-Isolated Push-Pull Converters with Continuous Current in Solar-Battery Systems

Research on the optimal design of weinberg converter

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