High-Voltage, High-Power-Density DC-DC Converter for Capacitor Charging Applications

Elmes, John; Jourdan, Charlie; Abdel-Rahman, Osama; Batarseh, Issa

doi:10.1109/apec.2009.4802694

Cited by 26 publications

(16 citation statements)

References 6 publications

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“…Flyback converters have been used for capacitor charging systems [6]. Figure 1 shows a simplified scheme of a dual switch flyback converter.…”

Section: Evaluated Topologies Dual Switch Flyback Convertermentioning

confidence: 99%

“…The capacitor charging system has to exhibit several features, among others pulse-to-pulse repeatibility, compactness, efficiency and robustness [2,3]. There are many topologies suitable for capacitor charging systems, each one having advantages and disadvantages [4,5,6,7]. This paper presents the comparison between three topologies, a dual switch flyback working in the boundary between CCM (Continuous Conduction Mode) and DCM (Discontinuous Conduction Mode), a full-bridge phase-shifted converter and a half-bridge series resonant converter.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of topologies suitable for capacitor charging systems

Maestri

Retegui

Uicich

et al. 2013

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

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This paper presents a comparison between topologies suitable for capacitor charging systems. The topologies under evaluation are a yback converter, a half-bridge series resonant converter and a full-bridge phase-shifted converter. The main features of these topologies are highlighted, which allows the proper topology selection according to the application requirements. Moreover, the performed analysis permits to characterize the operational range of the main components thus allowing their appropriate sizing and selection. Simulation results are provided.

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“…Flyback converters have been used for capacitor charging systems [6]. Figure 1 shows a simplified scheme of a dual switch flyback converter.…”

Section: Evaluated Topologies Dual Switch Flyback Convertermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of topologies suitable for capacitor charging systems

Maestri

Retegui

Uicich

et al. 2013

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

View full text Add to dashboard Cite

show abstract

“…Control algorithms for optimal-flyback charging of a capacitive load have been proposed in [23]. High voltage switch-mode power supplies for charging the capacitive loads have been implemented in [24], [25]. The bidirectional flyback converters are proposed in [26]- [28] to transfer the power in both directions.…”

Section: A Cmentioning

confidence: 99%

Design of a high voltage bidirectional DC-DC converter for driving capacitive incremental actuators usable in electric vehicles (EVs)

Thummala

Zhang

Andersen

et al. 2014

2014 IEEE International Electric Vehicle Conference (IEVC)

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Abstract-This paper presents the design of a low input (24 V) and variable high output voltage (0-2.5 kV) bidirectional dc-dc converter for driving a capacitive actuator. The topology is a digitally controlled bidirectional flyback converter with a variable frequency control. The objective is, to design the converter for efficiently charging and discharging the capacitive actuator from 0 V to 2.5 kV and vice versa, respectively. The converter is used to drive a dielectric electro active polymer (DEAP) based capacitive incremental actuator, which has the potential to be used in automotive (e.g., EVs), space and medical industries. The design of the bidirectional flyback converter to charge and discharge a 400 nF capacitive actuator is presented, when 4 kV and 4.5 kV high voltage MOSFETs are used on the secondary high voltage side. The experimental results and efficiency measurements of the converter with the proposed design are provided. Keywords

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“…A soft-switched flyback converter is analyzed in [6] for high voltage capacitor charging application. While charging the capacitive load the proposed converter operates in the boundary mode (boundary between CCM and DCM), with peak current control using LT3751 [15].…”

Section: Converter Analysis During Charging Processmentioning

confidence: 99%

High voltage Bi-directional flyback converter for capacitive actuator

Thummala

Zhang

Andersen

2013

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

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Keywords«High voltage power converters», «Switched-mode power supply », «Energy efficiency», «Actuator», «Electroactive materials». AbstractThis paper presents a high voltage DC-DC converter topology for bi-directional energy transfer between a low voltage DC source and a high voltage capacitive load. The topology is a bi-directional flyback converter with variable switching frequency control during the charge mode, and constant switching frequency control during the discharge mode. The converter is capable of charging the capacitive load from 24 V DC source to 2.5 kV, and discharges it to 0 V. The flyback converter has been analyzed in detail during both charge and discharge modes, by considering all the parasitic elements in the converter, including the most dominating parameters of the high voltage transformer viz., self-capacitance and leakage inductance. The specific capacitive load for this converter is a dielectric electro active polymer (DEAP) actuator, which can be used as an effective replacement for conventional actuators in a number of applications. In this paper, the discharging energy efficiency definition is introduced. The proposed converter has been experimentally tested with the film capacitive load and the DEAP actuator, and the experimental results are shown together with the efficiency measurements.

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High-Voltage, High-Power-Density DC-DC Converter for Capacitor Charging Applications

Cited by 26 publications

References 6 publications

Comparison of topologies suitable for capacitor charging systems

Comparison of topologies suitable for capacitor charging systems

Design of a high voltage bidirectional DC-DC converter for driving capacitive incremental actuators usable in electric vehicles (EVs)

High voltage Bi-directional flyback converter for capacitive actuator

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