Dielectric electro active polymer incremental actuator driven by multiple high-voltage bi-directional DC-DC converters

Schneider

IEEE/ASME Trans. Mechatron.

et al. 2016

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Section: Control Of Incremental Motormentioning

confidence: 99%

“…The generic concept of an incremental actuator is an assembly of sub-mechanism capable of gripping, releasing and extending. The concept 1 DEAP incremental actuator proposed in [21], consists of two grippers at both ends (to enable gripping operation) and an extender (to move the grippers) as shown in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

New Incremental Actuators Based on Electroactive Polymer: Conceptual, Control, and Driver Design Considerations

Schneider

IEEE/ASME Trans. Mechatron.

et al. 2016

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“…Primary parallel, secondary series flyback converter with multiple transformers is proposed in [36], to reduce the equivalent selfcapacitance on the secondary HV side. The HV converter used in [9], [30], [32], [35] The 4 kV, 300 mA high voltage IXYS MOSFET [37] has the following features:…”

Section: High Voltage Drivers: Conventional and Proposedmentioning

confidence: 99%

“…When a DEAP actuator is driven with high voltage (2-2.5 kV), it converts a portion of the electrical energy into mechanical displacement, which is of the order of mm (1-1.5 mm) [4], [5]. Three of such axial DEAP actuators are used to create a DEAP incremental actuator [9] as shown in Fig. 2.…”

Section: Introductionmentioning

confidence: 99%

Bidirectional flyback converter with multiple series connected outputs for high voltage capacitive charge and discharge applications

Schneider

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

et al. 2015

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Abstract-This paper evaluates two different implementations of a bidirectional flyback converter for driving a capacitive electro active actuator, which must be charged and discharged from 0 V to 2.5 kV DC and vice versa, supplied from a 24 V battery. In one implementation, a high voltage MOSFET (4 kV) in series with a high voltage blocking diode is added, in parallel with a high voltage freewheeling diode of a conventional flyback topology, to enable bidirectional operation. Experimental result from a digitally controlled bidirectional flyback converter shows that the discharge energy efficiency is limited by the parasitics of the high voltage active components, which also prevent full utilization of valley switching during discharge process. A second implementation is therefore proposed, where the secondary of flyback transformer winding is split into multiple windings which are connected in series by lower voltage rating MOSFETs driven by a gate drive transformer. Simulation results to compare the operation of conventional and proposed converters are provided. The advantages of proposed implementation are improved energy efficiency and lower cost. Experimental results with two series connected secondary windings are provided to validate the proposed implementation.Balancing capacitor across a series combination of one of the splitted secondary winding and a secondary MOSFET.

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“…The DEAP incremental actuator concept [20] consists of two grippers (to enable gripping operation) and an extender (to move the grippers), see Fig. (3).…”

Section: A Cmentioning

confidence: 99%

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

2014 IEEE International Electric Vehicle Conference (IEVC)

Andersen

et al. 2014

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