Hybrid-Type Full-Bridge DC/DC Converter With High Efficiency

Lee, Sungho; Park, Chun-Yoon; Kwon, Jung-Min; Kwon, Bong-Hwan

doi:10.1109/tpel.2014.2360404

Cited by 25 publications

(10 citation statements)

References 23 publications

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“…The comparison results between the PSFB converter proposed in this paper, the conventional PSFB converter (CPSFB) and the latest novel PSFB converters proposed in [7], [8] can be summarized in Table III. The proposed PSFB converter can achieve a relatively high efficiency without additional auxiliary components.…”

Section: B Changing the Q 1 -Q 2 Leg As The Leading Legmentioning

confidence: 99%

The Impact of Parasitic Elements on Spurious Turn-On in Phase-Shifted Full-Bridge Converters

Wang¹

2016

Journal of Power Electronics

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This paper presents a comprehensive analysis of the spurious turn-on phenomena in phase-shifted full-bridge (PSFB) converters. The conventional analysis of the spurious turn-on phenomenon does not establish in the PSFB converter as realizing zero voltage switching (ZVS). Firstly, a circuit model is proposed taking into account the parasitic capacitors and inductors of the transistors, as well as the parasitic elements of the power circuit loop. Second, an exhaustive investigation into the impact of all these parasitic elements on the spurious turn-on is conducted. It has been found that the spurious turn-on phenomenon is mainly attributed to the parasitic inductors of the power circuit loop, while the parasitic inductors of the transistors have a weak impact on this phenomenon. In addition, the operation principle of the PSFB converter makes the leading and lagging legs have distinguished differences with respect to the spurious turn-on problems. Design guidelines are given based on the theoretical analysis. Finally, detailed simulation and experimental results obtained with a 1.5 kW PSFB converter are given to validate proposed analysis.

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Section: B Changing the Q 1 -Q 2 Leg As The Leading Legmentioning

confidence: 99%

The Impact of Parasitic Elements on Spurious Turn-On in Phase-Shifted Full-Bridge Converters

Wang¹

2016

Journal of Power Electronics

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“…Based on the integrated magnetic topology, the primary side switching devices have achieved ZVS over the whole load condition, due to the participation of leakage inductance in resonant with capacitors. It is 8 supposing that the main switches (IGBT), diode, inductor and capacitor are all ideal devices and that blocking capacitor has sufficient capacity [2,18]. Circuit parameters of the converter designed herein are based on the conventional phaseshifted full-bridge converter, where…”

Section: Operational Principle Of Zvs Psfb Converter With Separated Smentioning

confidence: 99%

“…Soft-switching technology, which can reduce the electrical stresses and switching losses of switching devices effectively, is the most attractive candidate for high-power DC-DC converter with high frequency [1][2][3][4]. However, the primary of transformer applied in softswitching converter usually requires additional resonant inductor, which is large in size and reduces the power density of soft-switching converter.…”

Section: Introductionmentioning

confidence: 99%

Calculation of Leakage Inductance of Integrated Magnetic Transformer with Separated Secondary Winding Used in ZVS PSFB Converter

Tian¹,

Zhang²,

Ren³

et al. 2016

Journal of Magnetics

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A novel zero voltage switching (ZVS) phase shift full bridge (PSFB) converter used in geophysical exploration is proposed in this paper. To extend the ZVS ranges and increase power density of the converter, external inductor acting as leakage inductance is applied and integrated into the integrated magnetic (IM) transformer with separated secondary winding. Moreover, the loss of ZVS PSFB converter is also decreased. Besides, the analysis and accurate prediction methodology of the leakage inductance of the IM transformer are proposed, which are based on magnetic energy and Lebedev. Finally, to verify the accuracy of analysis and methodology, the experimental and finite element analysis (FEA) results of IM transformer and 40 kW converter prototypes are given.

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“…A second stage, which is usually a high-efficiency isolated dc/dc converter, is adopted to realize isolation and to control the charging current. Normally, full-bridge (FB) converter is the most popular topology for the dc/dc converters in battery charger applications (1-5 kW) [1]- [5].…”

Section: Introductionmentioning

confidence: 99%

A Voltage-fed Single-stage PFC Full-bridge Converter with Asymmetric Phase-shifted Control for Battery Chargers

Qian¹,

Sun²,

Zhang³

et al. 2017

Journal of Power Electronics

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A novel voltage-fed single-stage power factor correction (PFC) full-bridge converter based on asymmetric phase-shifted control for battery chargers is proposed in this paper. The attractive feature of the proposed converter is that it can operate in a wide output voltage range without an output low-frequency ripple, which is indispensable in battery charger applications. Meanwhile, the converter can maintain a high power factor and a controllable dc bus voltage over a wide output voltage range. In this paper, the realization of PFC and the operation principle of asymmetric phase-shifted control are given. A small-signal analysis of the proposed single-stage power factor correction (PFC) full-bridge converter is performed. Experimental results obtained from a 1kW experimental prototype are given to validate the feasibility of the proposed converter. The PF is higher than 0.97 over the entire output voltage range with the proposed control strategy.

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Hybrid-Type Full-Bridge DC/DC Converter With High Efficiency

Cited by 25 publications

References 23 publications

The Impact of Parasitic Elements on Spurious Turn-On in Phase-Shifted Full-Bridge Converters

The Impact of Parasitic Elements on Spurious Turn-On in Phase-Shifted Full-Bridge Converters

Calculation of Leakage Inductance of Integrated Magnetic Transformer with Separated Secondary Winding Used in ZVS PSFB Converter

A Voltage-fed Single-stage PFC Full-bridge Converter with Asymmetric Phase-shifted Control for Battery Chargers

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