Full SiC DCDC-Converter with a Power Density of more than 100kW/dm3

Otto Kreutzer; Martin März; Hideki Nakata

doi:10.4028/www.scientific.net/MSF.821-823.884

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Study of the Stability of 4H-SiC Detectors by Thermal Neutron Irradiation
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Development of SiC Power Module and Loss Evaluation in DC-DC Converter Circuit Application
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Full SiC DCDC-Converter with a Power Density of more than 100kW/dm³
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Comparison of Turn-Off Strategies for SiC Thyristors
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High Current (1225A) Optical Triggering of 18-kV 4H-SiC Thyristor in Purely Inductive Load Circuit
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Design and Characterization of 500 °C Schmitt Trigger in 4H-SiC
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Hetero-Epitaxial Single Crystal 3C-SiC Opto-Mechanical Pressure Sensor
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HomeMaterials Science ForumMaterials Science Forum Vols. 821-823Full SiC DCDC-Converter with a Power Density of...

Full SiC DCDC-Converter with a Power Density of more than 100kW/dm³

Abstract:

This Paper describes a non-isolated bidirectional full SiC 800V 200kW DCDC-converter power stage for electric and hybrid vehicles that reaches a power density of more than 100 kW/dm3 at a switching frequency of 200 kHz. The high power density is achieved by the use of SiC-MOSFETs sintered on custom made Si₃N₄ DCB-substrates controlled by custom made extremely flat drivers and a resulting very low inductive DC-link connection. All passive components like inductors and capacitor boards are custom made in order to keep all parasitic effects as low as possible. The power is subdivided on six interleaved phases to reduce the required capacitor ripple current capability.

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Periodical:

Materials Science Forum (Volumes 821-823)

Pages:

884-888

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.821-823.884

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Online since:

June 2015

Authors:

Otto Kreutzer*, Martin März, Hideki Nakata

Keywords:

Automotive Application, High Frequency Power Converter, High Power Density Systems, Interleaved Converter, Power Converters for EV

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* - Corresponding Author

References

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