Compact high frequency power conversion for high voltage applications

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Abstract/Contents

Abstract
Performance of high-voltage power converters has lagged their low-voltage counterparts on many metrics including power density, efficiency, transient response, and cost. This research presents newly developed circuit techniques and design strategies that allow high-voltage power supplies to be many times smaller and more efficient than the traditional high-voltage supplies on the market today. By implementing unique resonant circuit topologies capable of operating efficiently at 10s of MHz, passive component size is reduced to a fraction of the volume and mass when compared with conventional lower frequency designs. Novel strategies for improving the voltage gain of resonant dc-dc converters without loss in efficiency and stability are presented. This work provides several examples of high-gain resonant converters and demonstrates their benefits when used in various scientific applications. Specifically, several multi-kV prototypes are tested that achieve power densities exceeding 100 watts per cubic inch for conversion ratios of up to 130 and dc-dc efficiencies reaching 90 %. Various power levels are proven from 10s of watts to 2~kW with output voltages reaching 15 kV.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2018; ©2018
Publication date 2018; 2018
Issuance monographic
Language English

Creators/Contributors

Author Raymond, Luke C
Degree supervisor Rivas-Davila, Juan
Thesis advisor Rivas-Davila, Juan
Thesis advisor Boswell, Rod
Thesis advisor Lee, Thomas H, 1959-
Degree committee member Boswell, Rod
Degree committee member Lee, Thomas H, 1959-
Associated with Stanford University, Department of Electrical Engineering.

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Luke C. Raymond.
Note Submitted to the Department of Electrical Engineering.
Thesis Thesis Ph.D. Stanford University 2018.
Location electronic resource

Access conditions

Copyright
© 2018 by Luke Christopher Raymond
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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