Design considerations for high-voltage high-power full-bridge zero-voltage-switched PWM converter

Sabate, Juan; Vlatkovic, V.; Ridley, R.B.; Lee, F.C.; Cho, B.H.

doi:10.1109/apec.1990.66420

Cited by 763 publications

(230 citation statements)

References 5 publications

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“…The primary voltage of the high frequency transformer as shown in (1), (1) The magnetizing current i M (t) is (2) As for the primary winding, the dot end of the secondary winding is more positive that the non-dot ends. This implies that diode D1 & D2 is conducting while D3 & D4 is not conducting.…”

Section: Analysis and Design Of Full Bridge Dc-dc Convertermentioning

confidence: 99%

A Full-Bridge DC-DC Converter with Zero-Voltage Switching: Experimental Studies

Babu¹,

Henry²

2011

IJCEE

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Section: Analysis and Design Of Full Bridge Dc-dc Convertermentioning

confidence: 99%

A Full-Bridge DC-DC Converter with Zero-Voltage Switching: Experimental Studies

Babu¹,

Henry²

2011

IJCEE

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“…All primary switches can be turned on under ZVS using the transformer leakage inductance and switch intrinsic capacitance without any external passive components [6][7][8][9]. It is well known that the energy stored in the output inductor is sufficient to help the leading leg switches realize ZVS for a wide load range.…”

Section: Introductionmentioning

confidence: 99%

Soft-switching dual full-bridge converter with reduced circulating loss and voltage stress of secondary rectifier

Shi¹,

Zhang²

2016

Proceedings of the 2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)

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Abstract. This paper proposes a novel soft-switching dual full-bridge converter with shared lagging leg and dual outputs in series. Resonant clamp circuits are employed across the secondary rectifiers to reduce the voltage overshoots of the secondary rectifiers, as well as extinguish the primary current during the freewheeling interval. Full Zero-Voltage-Switching (ZVS) range of the lagging leg switches can be achieved based on the parallel full-bridge configuration. The dual outputs of the proposed converter are connected in series, and the whole output voltage can be regulated within the desired voltage range by the phase-shift control. Therefore, the proposed converter would be useful for high output voltage and high power applications. Steady state operation and distinctive features of the converter are explained and verified on a 1-kW hardware prototype, and experimental results validate the feasibility and performance of the proposed converter.

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“…Fig. 1(a) and (b) show a circuit diagram [1], [18] and key waveforms [18], [19] of the standard PSFB converter. According to Fig.…”

Section: Introductionmentioning

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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Design considerations for high-voltage high-power full-bridge zero-voltage-switched PWM converter

Cited by 763 publications

References 5 publications

A Full-Bridge DC-DC Converter with Zero-Voltage Switching: Experimental Studies

A Full-Bridge DC-DC Converter with Zero-Voltage Switching: Experimental Studies

Soft-switching dual full-bridge converter with reduced circulating loss and voltage stress of secondary rectifier

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

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