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Design and Control of an Electronic Bouncer Circuit for Volume-Optimal Long-Pulse High-Power Pulse Transformers

Collins, Max LU and Martins, Carlos A. LU (2022) In IEEE Transactions on Plasma Science 50(10). p.3692-3700
Abstract

Pulse transformer size is fundamentally linked to application pulselength, pulse power and pulse rise time. In considering long-pulse high-power applications, it has earlier been demonstrated that the large voltage-time integral associated with long-pulse operation in combination with the severe pulse rise time required to ensure high pulse efficiency strictly limits the number of transformer winding turns thereby resulting in extremely large pulse transformers. This article investigates a new way of sizing and controlling an electronic bouncer circuit in reducing the effective pulse rise time. It is demonstrated that, in considering typical long-pulse application parameters, the pulse rise time may generally be reduced by a factor of... (More)

Pulse transformer size is fundamentally linked to application pulselength, pulse power and pulse rise time. In considering long-pulse high-power applications, it has earlier been demonstrated that the large voltage-time integral associated with long-pulse operation in combination with the severe pulse rise time required to ensure high pulse efficiency strictly limits the number of transformer winding turns thereby resulting in extremely large pulse transformers. This article investigates a new way of sizing and controlling an electronic bouncer circuit in reducing the effective pulse rise time. It is demonstrated that, in considering typical long-pulse application parameters, the pulse rise time may generally be reduced by a factor of 2, implying that pulse efficiency could be retained while significantly reducing pulse transformer volume. The developed idea is used in formulating a unified design procedure for volume-optimal pulse transformers with an electronic bouncer circuit. The method and proposed design procedure are illustrated and evaluated in a case study considering the European Spallation Source klystron modulator requirements (pulse amplitude of 115 kV/100 A, pulselength of 3.5 ms, pulse repetition rate of 14 Hz, and pulse rise time of < 120~μs). Finally, the proposed design procedure is used to evaluate the greatest attainable pulselength for a given set of application parameters and as a function of system constraints.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Accelerator power supplies, high voltage techniques, pulse generation, pulse power systems
in
IEEE Transactions on Plasma Science
volume
50
issue
10
pages
9 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85139440888
ISSN
0093-3813
DOI
10.1109/TPS.2022.3202077
language
English
LU publication?
yes
id
eeccb925-afd0-4cb7-ac8f-41f3d98cc2ae
date added to LUP
2022-12-14 12:35:39
date last changed
2023-11-16 20:56:32
@article{eeccb925-afd0-4cb7-ac8f-41f3d98cc2ae,
  abstract     = {{<p>Pulse transformer size is fundamentally linked to application pulselength, pulse power and pulse rise time. In considering long-pulse high-power applications, it has earlier been demonstrated that the large voltage-time integral associated with long-pulse operation in combination with the severe pulse rise time required to ensure high pulse efficiency strictly limits the number of transformer winding turns thereby resulting in extremely large pulse transformers. This article investigates a new way of sizing and controlling an electronic bouncer circuit in reducing the effective pulse rise time. It is demonstrated that, in considering typical long-pulse application parameters, the pulse rise time may generally be reduced by a factor of 2, implying that pulse efficiency could be retained while significantly reducing pulse transformer volume. The developed idea is used in formulating a unified design procedure for volume-optimal pulse transformers with an electronic bouncer circuit. The method and proposed design procedure are illustrated and evaluated in a case study considering the European Spallation Source klystron modulator requirements (pulse amplitude of 115 kV/100 A, pulselength of 3.5 ms, pulse repetition rate of 14 Hz, and pulse rise time of &lt; 120~μs). Finally, the proposed design procedure is used to evaluate the greatest attainable pulselength for a given set of application parameters and as a function of system constraints.</p>}},
  author       = {{Collins, Max and Martins, Carlos A.}},
  issn         = {{0093-3813}},
  keywords     = {{Accelerator power supplies; high voltage techniques; pulse generation; pulse power systems}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{10}},
  pages        = {{3692--3700}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Transactions on Plasma Science}},
  title        = {{Design and Control of an Electronic Bouncer Circuit for Volume-Optimal Long-Pulse High-Power Pulse Transformers}},
  url          = {{http://dx.doi.org/10.1109/TPS.2022.3202077}},
  doi          = {{10.1109/TPS.2022.3202077}},
  volume       = {{50}},
  year         = {{2022}},
}