---
_id: '58757'
abstract:
- lang: eng
text: On-bord DC-DC-Konverter sind das Bindeglied zwischen der Traktionsbatterie
und der Hilfsbatterie und versorgen wichtige Komponenten des Elektrofahrzeugs.
Diese Arbeit adressiert den weiten Spannungsbereich des Wandlers, der eine Folge
der variierenden Spannungen der Batterien ist. Als potentielle Topologien werden
der LLC Resonanzwandler, der aktiv geklemmte Flusswandler und der isolierte Vollbrücken-Konverter
untersucht.Zunächst wird hierbei der LLC untersucht und verschiedene Modulationstechniken
zur Abdeckung des weiten Spannungsbereichs gegenübergestellt, um zu zeigen, dass
die Frequenzverdoppler-Modulation und die alternierende Phasenverschiebungsmodulation
die maximale Temperatur der Halbleiter deutlich senken. Zum Wechsel zwischen Voll-
und Halbbrückenmodulation wird eine Modulationstechnik vorgeschlagen, welche den
transienten Magnetisierungsfluss um über 70 % respektive des konventionellen Konzept
senkt. Für den aktiv geklemmten Flusswandler wird ein verbessertes Modell vorgestellt,
das die Blockierspannung sehr genau modelliert. Zudem wird eine Snubber-Schaltung
vorgeschlagen, welche die sekundärseitige transiente Blockierspannung deutlich
reduziert. Für den isolierten Vollbrücken-Konverter werden hart- und weichschaltende
Modulationstechniken analysiert und eine hartschaltende Frequenz-Verdoppler-Modulationstechnik
vorgeschlagen, welche die maximale Schaltertemperatur deutlich reduziert und eine
Modulationstechnik mit Beschaltung vorgestellt, um zwischen dem Voll- und Halbbrückenmodus
zu wechseln. Die zuvor erarbeiteten Konverter werden unter Anwendung einer vorgestellten
Designmethodik verglichen und messtechnisch evaluiert.
- lang: eng
text: 'On-board DC-DC converters are the connecting link between the traction battery
and the auxiliary battery and supply energy to the crucial components of an electrical
vehicle. This work addresses DC-DC converters of a wide conversion range necessary
to cover the voltage-transfer ratio resulting from the varying state of charge
of the traction and auxiliary battery and investigates three topologies for this
application: the LLC resonant converter, the active-clamp forward converter and
the isolated full-bridge converter. At first, the LLC resonant converter is analyzed
and several operating modes are investigated and proposed to better cover the
wide transfer ratio. The operating modes are benchmarked showing that the alternating-asymmetrical
phase shift modulation and the frequency-doubler modulations can significantly
reduce the MOSFET temperature. To switch from full-bridge mode to half-bridge
mode, an improved morphing modulation is proposed that reduces the flux by about
70 % compared to the conventional concept. Finally, an integrated planar transformer
is proposed to increase the power density of the LLC.The active-clamp forward
converter is investigated to propose an accurate steady-state model. A snubber
circuitry is presented to limit the voltage overshoot of the synchronous rectifier.
The isolated full-bridge converter is investigated in its hard- and soft-switching
operation. A hard-switched frequency-doubler modulation is proposed to reduce
the maximum temperature significantly. Additionally, a steady-state model is derived
to accurately calculate the current shape of the converter and a topology morphing
concept is proposed to limit the blocking voltage of the secondary-side semiconductors
during mode transition. Finally, a topology comparison and design methodology
is proposed that enables a fair topology comparison. The three aforementioned
topologies are experimentally evaluated.'
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
citation:
ama: Rehlaender P. Single-Stage DC-DC Converters for a Wide Input & Output
Voltage Range. LibreCat University; 2024. doi:10.17619/UNIPB/1-2148
apa: Rehlaender, P. (2024). Single-stage DC-DC converters for a wide input &
output voltage range. LibreCat University. https://doi.org/10.17619/UNIPB/1-2148
bibtex: '@book{Rehlaender_2024, title={Single-stage DC-DC converters for a wide
input & output voltage range}, DOI={10.17619/UNIPB/1-2148},
publisher={LibreCat University}, author={Rehlaender, Philipp}, year={2024} }'
chicago: Rehlaender, Philipp. Single-Stage DC-DC Converters for a Wide Input
& Output Voltage Range. LibreCat University, 2024. https://doi.org/10.17619/UNIPB/1-2148.
ieee: P. Rehlaender, Single-stage DC-DC converters for a wide input &
output voltage range. LibreCat University, 2024.
mla: Rehlaender, Philipp. Single-Stage DC-DC Converters for a Wide Input &
Output Voltage Range. LibreCat University, 2024, doi:10.17619/UNIPB/1-2148.
short: P. Rehlaender, Single-Stage DC-DC Converters for a Wide Input & Output
Voltage Range, LibreCat University, 2024.
date_created: 2025-02-21T11:40:18Z
date_updated: 2025-02-21T11:40:59Z
department:
- _id: '52'
doi: 10.17619/UNIPB/1-2148
language:
- iso: eng
publisher: LibreCat University
status: public
title: Single-stage DC-DC converters for a wide input & output voltage range
type: dissertation
user_id: '71353'
year: '2024'
...
---
_id: '30349'
author:
- first_name: Nikolas
full_name: Förster, Nikolas
last_name: Förster
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Oliver
full_name: Wallscheid, Oliver
id: '11291'
last_name: Wallscheid
orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Förster N, Rehlaender P, Wallscheid O, Schafmeister F, Böcker J. An Open-Source
Transistor Database and Toolbox as an Unified Software Engineering Tool for Managing
and Evaluating Power Transistors. In: Proc. 37th IEEE Applied Power Electronics
Conference (APEC). IEEE.'
apa: Förster, N., Rehlaender, P., Wallscheid, O., Schafmeister, F., & Böcker,
J. (n.d.). An Open-Source Transistor Database and Toolbox as an Unified Software
Engineering Tool for Managing and Evaluating Power Transistors. Proc. 37th
IEEE Applied Power Electronics Conference (APEC). 37th IEEE Applied Power
Electronics Conference (APEC 22), Houston, TX, USA.
bibtex: '@inproceedings{Förster_Rehlaender_Wallscheid_Schafmeister_Böcker, place={Houston,
TX, USA}, title={An Open-Source Transistor Database and Toolbox as an Unified
Software Engineering Tool for Managing and Evaluating Power Transistors}, booktitle={Proc.
37th IEEE Applied Power Electronics Conference (APEC)}, publisher={IEEE}, author={Förster,
Nikolas and Rehlaender, Philipp and Wallscheid, Oliver and Schafmeister, Frank
and Böcker, Joachim} }'
chicago: 'Förster, Nikolas, Philipp Rehlaender, Oliver Wallscheid, Frank Schafmeister,
and Joachim Böcker. “An Open-Source Transistor Database and Toolbox as an Unified
Software Engineering Tool for Managing and Evaluating Power Transistors.” In Proc.
37th IEEE Applied Power Electronics Conference (APEC). Houston, TX, USA: IEEE,
n.d.'
ieee: N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, and J. Böcker,
“An Open-Source Transistor Database and Toolbox as an Unified Software Engineering
Tool for Managing and Evaluating Power Transistors,” presented at the 37th IEEE
Applied Power Electronics Conference (APEC 22), Houston, TX, USA.
mla: Förster, Nikolas, et al. “An Open-Source Transistor Database and Toolbox as
an Unified Software Engineering Tool for Managing and Evaluating Power Transistors.”
Proc. 37th IEEE Applied Power Electronics Conference (APEC), IEEE.
short: 'N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in:
Proc. 37th IEEE Applied Power Electronics Conference (APEC), IEEE, Houston, TX,
USA, n.d.'
conference:
end_date: 2022-03-24
location: Houston, TX, USA
name: 37th IEEE Applied Power Electronics Conference (APEC 22)
start_date: 2022-03-20
date_created: 2022-03-16T12:41:02Z
date_updated: 2022-03-16T13:35:07Z
department:
- _id: '52'
language:
- iso: eng
place: Houston, TX, USA
publication: Proc. 37th IEEE Applied Power Electronics Conference (APEC)
publication_status: inpress
publisher: IEEE
status: public
title: An Open-Source Transistor Database and Toolbox as an Unified Software Engineering
Tool for Managing and Evaluating Power Transistors
type: conference
user_id: '71291'
year: '2022'
...
---
_id: '35126'
author:
- first_name: Nikolas
full_name: Förster, Nikolas
id: '83383'
last_name: Förster
- first_name: Jonas
full_name: Hölscher, Jonas
last_name: Hölscher
- first_name: Till
full_name: Piepenbrock, Till
last_name: Piepenbrock
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Oliver
full_name: Wallscheid, Oliver
id: '11291'
last_name: Wallscheid
orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Förster N, Hölscher J, Piepenbrock T, et al. An Open-Source FEM Magnetic Toolbox
for Calculating Electric and Thermal Behavior of Power Electronic Magnetic Components.
In: 2022 24th European Conference on Power Electronics and Applications (EPE’22
ECCE Europe). ; 2022:P.1-P.9.'
apa: Förster, N., Hölscher, J., Piepenbrock, T., Rehlaender, P., Wallscheid, O.,
Schafmeister, F., & Böcker, J. (2022). An Open-Source FEM Magnetic Toolbox
for Calculating Electric and Thermal Behavior of Power Electronic Magnetic Components.
2022 24th European Conference on Power Electronics and Applications (EPE’22
ECCE Europe), P.1-P.9.
bibtex: '@inproceedings{Förster_Hölscher_Piepenbrock_Rehlaender_Wallscheid_Schafmeister_Böcker_2022,
title={An Open-Source FEM Magnetic Toolbox for Calculating Electric and Thermal
Behavior of Power Electronic Magnetic Components}, booktitle={2022 24th European
Conference on Power Electronics and Applications (EPE’22 ECCE Europe)}, author={Förster,
Nikolas and Hölscher, Jonas and Piepenbrock, Till and Rehlaender, Philipp and
Wallscheid, Oliver and Schafmeister, Frank and Böcker, Joachim}, year={2022},
pages={P.1-P.9} }'
chicago: Förster, Nikolas, Jonas Hölscher, Till Piepenbrock, Philipp Rehlaender,
Oliver Wallscheid, Frank Schafmeister, and Joachim Böcker. “An Open-Source FEM
Magnetic Toolbox for Calculating Electric and Thermal Behavior of Power Electronic
Magnetic Components.” In 2022 24th European Conference on Power Electronics
and Applications (EPE’22 ECCE Europe), P.1-P.9, 2022.
ieee: N. Förster et al., “An Open-Source FEM Magnetic Toolbox for Calculating
Electric and Thermal Behavior of Power Electronic Magnetic Components,” in 2022
24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe),
2022, p. P.1-P.9.
mla: Förster, Nikolas, et al. “An Open-Source FEM Magnetic Toolbox for Calculating
Electric and Thermal Behavior of Power Electronic Magnetic Components.” 2022
24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe),
2022, p. P.1-P.9.
short: 'N. Förster, J. Hölscher, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F.
Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics
and Applications (EPE’22 ECCE Europe), 2022, p. P.1-P.9.'
date_created: 2023-01-03T08:56:48Z
date_updated: 2023-10-20T11:39:27Z
department:
- _id: '52'
language:
- iso: eng
page: P.1-P.9
publication: 2022 24th European Conference on Power Electronics and Applications (EPE’22
ECCE Europe)
status: public
title: An Open-Source FEM Magnetic Toolbox for Calculating Electric and Thermal Behavior
of Power Electronic Magnetic Components
type: conference
user_id: '83383'
year: '2022'
...
---
_id: '35125'
author:
- first_name: Nikolas
full_name: Förster, Nikolas
id: '83383'
last_name: Förster
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Oliver
full_name: Wallscheid, Oliver
id: '11291'
last_name: Wallscheid
orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Förster N, Rehlaender P, Wallscheid O, Schafmeister F, Böcker J. An Open-Source
Transistor Database and Toolbox as a Unified Software Engineering Tool for Managing
and Evaluating Power Transistors. In: 2022 IEEE Applied Power Electronics Conference
and Exposition (APEC). IEEE; 2022. doi:10.1109/apec43599.2022.9773701'
apa: Förster, N., Rehlaender, P., Wallscheid, O., Schafmeister, F., & Böcker,
J. (2022). An Open-Source Transistor Database and Toolbox as a Unified Software
Engineering Tool for Managing and Evaluating Power Transistors. 2022 IEEE Applied
Power Electronics Conference and Exposition (APEC). https://doi.org/10.1109/apec43599.2022.9773701
bibtex: '@inproceedings{Förster_Rehlaender_Wallscheid_Schafmeister_Böcker_2022,
title={An Open-Source Transistor Database and Toolbox as a Unified Software Engineering
Tool for Managing and Evaluating Power Transistors}, DOI={10.1109/apec43599.2022.9773701},
booktitle={2022 IEEE Applied Power Electronics Conference and Exposition (APEC)},
publisher={IEEE}, author={Förster, Nikolas and Rehlaender, Philipp and Wallscheid,
Oliver and Schafmeister, Frank and Böcker, Joachim}, year={2022} }'
chicago: Förster, Nikolas, Philipp Rehlaender, Oliver Wallscheid, Frank Schafmeister,
and Joachim Böcker. “An Open-Source Transistor Database and Toolbox as a Unified
Software Engineering Tool for Managing and Evaluating Power Transistors.” In 2022
IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2022.
https://doi.org/10.1109/apec43599.2022.9773701.
ieee: 'N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, and J. Böcker,
“An Open-Source Transistor Database and Toolbox as a Unified Software Engineering
Tool for Managing and Evaluating Power Transistors,” 2022, doi: 10.1109/apec43599.2022.9773701.'
mla: Förster, Nikolas, et al. “An Open-Source Transistor Database and Toolbox as
a Unified Software Engineering Tool for Managing and Evaluating Power Transistors.”
2022 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE,
2022, doi:10.1109/apec43599.2022.9773701.
short: 'N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in:
2022 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2022.'
date_created: 2023-01-03T08:54:22Z
date_updated: 2023-01-23T07:28:56Z
department:
- _id: '52'
doi: 10.1109/apec43599.2022.9773701
language:
- iso: eng
publication: 2022 IEEE Applied Power Electronics Conference and Exposition (APEC)
publication_status: published
publisher: IEEE
status: public
title: An Open-Source Transistor Database and Toolbox as a Unified Software Engineering
Tool for Managing and Evaluating Power Transistors
type: conference
user_id: '83383'
year: '2022'
...
---
_id: '35127'
author:
- first_name: Nikolas
full_name: Förster, Nikolas
id: '83383'
last_name: Förster
- first_name: Till
full_name: Piepenbrock, Till
last_name: Piepenbrock
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Oliver
full_name: Wallscheid, Oliver
id: '11291'
last_name: Wallscheid
orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Förster N, Piepenbrock T, Rehlaender P, Wallscheid O, Schafmeister F, Böcker
J. An Open-Source FEM Magnetics Toolbox for Power Electronic Magnetic Components.
In: PCIM Europe 2022; International Exhibition and Conference for Power Electronics,
Intelligent Motion, Renewable Energy and Energy Management. ; 2022:1-10. doi:10.30420/565822103'
apa: Förster, N., Piepenbrock, T., Rehlaender, P., Wallscheid, O., Schafmeister,
F., & Böcker, J. (2022). An Open-Source FEM Magnetics Toolbox for Power Electronic
Magnetic Components. PCIM Europe 2022; International Exhibition and Conference
for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management,
1–10. https://doi.org/10.30420/565822103
bibtex: '@inproceedings{Förster_Piepenbrock_Rehlaender_Wallscheid_Schafmeister_Böcker_2022,
title={An Open-Source FEM Magnetics Toolbox for Power Electronic Magnetic Components},
DOI={10.30420/565822103}, booktitle={PCIM
Europe 2022; International Exhibition and Conference for Power Electronics, Intelligent
Motion, Renewable Energy and Energy Management}, author={Förster, Nikolas and
Piepenbrock, Till and Rehlaender, Philipp and Wallscheid, Oliver and Schafmeister,
Frank and Böcker, Joachim}, year={2022}, pages={1–10} }'
chicago: Förster, Nikolas, Till Piepenbrock, Philipp Rehlaender, Oliver Wallscheid,
Frank Schafmeister, and Joachim Böcker. “An Open-Source FEM Magnetics Toolbox
for Power Electronic Magnetic Components.” In PCIM Europe 2022; International
Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable
Energy and Energy Management, 1–10, 2022. https://doi.org/10.30420/565822103.
ieee: 'N. Förster, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F. Schafmeister,
and J. Böcker, “An Open-Source FEM Magnetics Toolbox for Power Electronic Magnetic
Components,” in PCIM Europe 2022; International Exhibition and Conference for
Power Electronics, Intelligent Motion, Renewable Energy and Energy Management,
2022, pp. 1–10, doi: 10.30420/565822103.'
mla: Förster, Nikolas, et al. “An Open-Source FEM Magnetics Toolbox for Power Electronic
Magnetic Components.” PCIM Europe 2022; International Exhibition and Conference
for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management,
2022, pp. 1–10, doi:10.30420/565822103.
short: 'N. Förster, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F. Schafmeister,
J. Böcker, in: PCIM Europe 2022; International Exhibition and Conference for Power
Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2022,
pp. 1–10.'
date_created: 2023-01-03T08:58:11Z
date_updated: 2023-01-23T07:27:15Z
department:
- _id: '52'
doi: 10.30420/565822103
language:
- iso: eng
page: 1-10
publication: PCIM Europe 2022; International Exhibition and Conference for Power Electronics,
Intelligent Motion, Renewable Energy and Energy Management
status: public
title: An Open-Source FEM Magnetics Toolbox for Power Electronic Magnetic Components
type: conference
user_id: '83383'
year: '2022'
...
---
_id: '44163'
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Oliver
full_name: Wallscheid, Oliver
id: '11291'
last_name: Wallscheid
orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: Rehlaender P, Wallscheid O, Schafmeister F, Böcker J. LLC Resonant Converter
Modulations for Reduced Junction Temperatures in Half-Bridge Mode and Transformer
Flux in the On-the-Fly Morphing Thereto. IEEE Transactions on Power Electronics.
2022;37(11):13413-13427. doi:10.1109/tpel.2022.3180758
apa: Rehlaender, P., Wallscheid, O., Schafmeister, F., & Böcker, J. (2022).
LLC Resonant Converter Modulations for Reduced Junction Temperatures in Half-Bridge
Mode and Transformer Flux in the On-the-Fly Morphing Thereto. IEEE Transactions
on Power Electronics, 37(11), 13413–13427. https://doi.org/10.1109/tpel.2022.3180758
bibtex: '@article{Rehlaender_Wallscheid_Schafmeister_Böcker_2022, title={LLC Resonant
Converter Modulations for Reduced Junction Temperatures in Half-Bridge Mode and
Transformer Flux in the On-the-Fly Morphing Thereto}, volume={37}, DOI={10.1109/tpel.2022.3180758},
number={11}, journal={IEEE Transactions on Power Electronics}, publisher={Institute
of Electrical and Electronics Engineers (IEEE)}, author={Rehlaender, Philipp and
Wallscheid, Oliver and Schafmeister, Frank and Böcker, Joachim}, year={2022},
pages={13413–13427} }'
chicago: 'Rehlaender, Philipp, Oliver Wallscheid, Frank Schafmeister, and Joachim
Böcker. “LLC Resonant Converter Modulations for Reduced Junction Temperatures
in Half-Bridge Mode and Transformer Flux in the On-the-Fly Morphing Thereto.”
IEEE Transactions on Power Electronics 37, no. 11 (2022): 13413–27. https://doi.org/10.1109/tpel.2022.3180758.'
ieee: 'P. Rehlaender, O. Wallscheid, F. Schafmeister, and J. Böcker, “LLC Resonant
Converter Modulations for Reduced Junction Temperatures in Half-Bridge Mode and
Transformer Flux in the On-the-Fly Morphing Thereto,” IEEE Transactions on
Power Electronics, vol. 37, no. 11, pp. 13413–13427, 2022, doi: 10.1109/tpel.2022.3180758.'
mla: Rehlaender, Philipp, et al. “LLC Resonant Converter Modulations for Reduced
Junction Temperatures in Half-Bridge Mode and Transformer Flux in the On-the-Fly
Morphing Thereto.” IEEE Transactions on Power Electronics, vol. 37, no.
11, Institute of Electrical and Electronics Engineers (IEEE), 2022, pp. 13413–27,
doi:10.1109/tpel.2022.3180758.
short: P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, IEEE Transactions
on Power Electronics 37 (2022) 13413–13427.
date_created: 2023-04-25T08:32:29Z
date_updated: 2023-04-25T08:41:43Z
department:
- _id: '52'
doi: 10.1109/tpel.2022.3180758
intvolume: ' 37'
issue: '11'
keyword:
- Electrical and Electronic Engineering
language:
- iso: eng
page: 13413-13427
publication: IEEE Transactions on Power Electronics
publication_identifier:
issn:
- 0885-8993
- 1941-0107
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: LLC Resonant Converter Modulations for Reduced Junction Temperatures in Half-Bridge
Mode and Transformer Flux in the On-the-Fly Morphing Thereto
type: journal_article
user_id: '66'
volume: 37
year: '2022'
...
---
_id: '44164'
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Bastian
full_name: Korthauer, Bastian
last_name: Korthauer
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Rehlaender P, Korthauer B, Schafmeister F, Böcker J. Experimental Demonstration
of a 2.2kW Active-Clamp Converter for High-Current Wide-Voltage-Transfer Ratio
Applications. In: 2022 24th European Conference on Power Electronics and Applications
(EPE’22 ECCE Europe). ; 2022:P.1-P.11.'
apa: Rehlaender, P., Korthauer, B., Schafmeister, F., & Böcker, J. (2022). Experimental
Demonstration of a 2.2kW Active-Clamp Converter for High-Current Wide-Voltage-Transfer
Ratio Applications. 2022 24th European Conference on Power Electronics and
Applications (EPE’22 ECCE Europe), P.1-P.11.
bibtex: '@inproceedings{Rehlaender_Korthauer_Schafmeister_Böcker_2022, title={Experimental
Demonstration of a 2.2kW Active-Clamp Converter for High-Current Wide-Voltage-Transfer
Ratio Applications}, booktitle={2022 24th European Conference on Power Electronics
and Applications (EPE’22 ECCE Europe)}, author={Rehlaender, Philipp and Korthauer,
Bastian and Schafmeister, Frank and Böcker, Joachim}, year={2022}, pages={P.1-P.11}
}'
chicago: Rehlaender, Philipp, Bastian Korthauer, Frank Schafmeister, and Joachim
Böcker. “Experimental Demonstration of a 2.2kW Active-Clamp Converter for High-Current
Wide-Voltage-Transfer Ratio Applications.” In 2022 24th European Conference
on Power Electronics and Applications (EPE’22 ECCE Europe), P.1-P.11, 2022.
ieee: P. Rehlaender, B. Korthauer, F. Schafmeister, and J. Böcker, “Experimental
Demonstration of a 2.2kW Active-Clamp Converter for High-Current Wide-Voltage-Transfer
Ratio Applications,” in 2022 24th European Conference on Power Electronics
and Applications (EPE’22 ECCE Europe), Hannover, Germany, 2022, p. P.1-P.11.
mla: Rehlaender, Philipp, et al. “Experimental Demonstration of a 2.2kW Active-Clamp
Converter for High-Current Wide-Voltage-Transfer Ratio Applications.” 2022
24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe),
2022, p. P.1-P.11.
short: 'P. Rehlaender, B. Korthauer, F. Schafmeister, J. Böcker, in: 2022 24th European
Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, p.
P.1-P.11.'
conference:
location: Hannover, Germany
name: EPE
start_date: 2022-09
date_created: 2023-04-25T08:35:42Z
date_updated: 2023-04-25T08:41:27Z
department:
- _id: '52'
language:
- iso: eng
page: P.1-P.11
publication: 2022 24th European Conference on Power Electronics and Applications (EPE’22
ECCE Europe)
status: public
title: Experimental Demonstration of a 2.2kW Active-Clamp Converter for High-Current
Wide-Voltage-Transfer Ratio Applications
type: conference
user_id: '66'
year: '2022'
...
---
_id: '44161'
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Rehlaender P, Schafmeister F, Böcker J. Phase-Shift Modulation for Flying-Capacitor
DC-DC Converters. In: 2022 24th European Conference on Power Electronics and
Applications (EPE’22 ECCE Europe). ; 2022:1-9.'
apa: Rehlaender, P., Schafmeister, F., & Böcker, J. (2022). Phase-Shift Modulation
for Flying-Capacitor DC-DC Converters. 2022 24th European Conference on Power
Electronics and Applications (EPE’22 ECCE Europe), 1–9.
bibtex: '@inproceedings{Rehlaender_Schafmeister_Böcker_2022, title={Phase-Shift
Modulation for Flying-Capacitor DC-DC Converters}, booktitle={2022 24th European
Conference on Power Electronics and Applications (EPE’22 ECCE Europe)}, author={Rehlaender,
Philipp and Schafmeister, Frank and Böcker, Joachim}, year={2022}, pages={1–9}
}'
chicago: Rehlaender, Philipp, Frank Schafmeister, and Joachim Böcker. “Phase-Shift
Modulation for Flying-Capacitor DC-DC Converters.” In 2022 24th European Conference
on Power Electronics and Applications (EPE’22 ECCE Europe), 1–9, 2022.
ieee: P. Rehlaender, F. Schafmeister, and J. Böcker, “Phase-Shift Modulation for
Flying-Capacitor DC-DC Converters,” in 2022 24th European Conference on Power
Electronics and Applications (EPE’22 ECCE Europe), Hannover, Germany, 2022,
pp. 1–9.
mla: Rehlaender, Philipp, et al. “Phase-Shift Modulation for Flying-Capacitor DC-DC
Converters.” 2022 24th European Conference on Power Electronics and Applications
(EPE’22 ECCE Europe), 2022, pp. 1–9.
short: 'P. Rehlaender, F. Schafmeister, J. Böcker, in: 2022 24th European Conference
on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, pp. 1–9.'
conference:
location: Hannover, Germany
name: EPE
start_date: 2022-09
date_created: 2023-04-25T08:24:57Z
date_updated: 2023-04-25T08:28:00Z
department:
- _id: '52'
language:
- iso: eng
page: 1-9
publication: 2022 24th European Conference on Power Electronics and Applications (EPE’22
ECCE Europe)
status: public
title: Phase-Shift Modulation for Flying-Capacitor DC-DC Converters
type: conference
user_id: '66'
year: '2022'
...
---
_id: '29892'
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: Rehlaender P, Schafmeister F, Böcker J. Interleaved Single-Stage LLC Converter
Design Utilizing Half- and Full-Bridge Configurations for Wide Voltage Transfer
Ratio Applications. IEEE Transactions on Power Electronics. 2021;36(9):10065-10080.
doi:10.1109/tpel.2021.3067843
apa: Rehlaender, P., Schafmeister, F., & Böcker, J. (2021). Interleaved Single-Stage
LLC Converter Design Utilizing Half- and Full-Bridge Configurations for Wide Voltage
Transfer Ratio Applications. IEEE Transactions on Power Electronics, 36(9),
10065–10080. https://doi.org/10.1109/tpel.2021.3067843
bibtex: '@article{Rehlaender_Schafmeister_Böcker_2021, title={Interleaved Single-Stage
LLC Converter Design Utilizing Half- and Full-Bridge Configurations for Wide Voltage
Transfer Ratio Applications}, volume={36}, DOI={10.1109/tpel.2021.3067843},
number={9}, journal={IEEE Transactions on Power Electronics}, publisher={Institute
of Electrical and Electronics Engineers (IEEE)}, author={Rehlaender, Philipp and
Schafmeister, Frank and Böcker, Joachim}, year={2021}, pages={10065–10080} }'
chicago: 'Rehlaender, Philipp, Frank Schafmeister, and Joachim Böcker. “Interleaved
Single-Stage LLC Converter Design Utilizing Half- and Full-Bridge Configurations
for Wide Voltage Transfer Ratio Applications.” IEEE Transactions on Power Electronics
36, no. 9 (2021): 10065–80. https://doi.org/10.1109/tpel.2021.3067843.'
ieee: 'P. Rehlaender, F. Schafmeister, and J. Böcker, “Interleaved Single-Stage
LLC Converter Design Utilizing Half- and Full-Bridge Configurations for Wide Voltage
Transfer Ratio Applications,” IEEE Transactions on Power Electronics, vol.
36, no. 9, pp. 10065–10080, 2021, doi: 10.1109/tpel.2021.3067843.'
mla: Rehlaender, Philipp, et al. “Interleaved Single-Stage LLC Converter Design
Utilizing Half- and Full-Bridge Configurations for Wide Voltage Transfer Ratio
Applications.” IEEE Transactions on Power Electronics, vol. 36, no. 9,
Institute of Electrical and Electronics Engineers (IEEE), 2021, pp. 10065–80,
doi:10.1109/tpel.2021.3067843.
short: P. Rehlaender, F. Schafmeister, J. Böcker, IEEE Transactions on Power Electronics
36 (2021) 10065–10080.
date_created: 2022-02-20T21:18:08Z
date_updated: 2022-02-22T08:28:30Z
department:
- _id: '34'
- _id: '52'
doi: 10.1109/tpel.2021.3067843
intvolume: ' 36'
issue: '9'
keyword:
- Electrical and Electronic Engineering
language:
- iso: eng
page: 10065-10080
publication: IEEE Transactions on Power Electronics
publication_identifier:
issn:
- 0885-8993
- 1941-0107
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: Interleaved Single-Stage LLC Converter Design Utilizing Half- and Full-Bridge
Configurations for Wide Voltage Transfer Ratio Applications
type: journal_article
user_id: '66'
volume: 36
year: '2021'
...
---
_id: '29895'
author:
- first_name: Bastian
full_name: Korthauer, Bastian
last_name: Korthauer
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Korthauer B, Rehlaender P, Schafmeister F, Böcker J. Design and Analysis of
a Regenerative Snubber for a 2.2 kW Active-Clamp Forward Converter with Low-Voltage
Output. In: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC).
IEEE; 2021. doi:10.1109/apec42165.2021.9487130'
apa: Korthauer, B., Rehlaender, P., Schafmeister, F., & Böcker, J. (2021). Design
and Analysis of a Regenerative Snubber for a 2.2 kW Active-Clamp Forward Converter
with Low-Voltage Output. 2021 IEEE Applied Power Electronics Conference and
Exposition (APEC). https://doi.org/10.1109/apec42165.2021.9487130
bibtex: '@inproceedings{Korthauer_Rehlaender_Schafmeister_Böcker_2021, title={Design
and Analysis of a Regenerative Snubber for a 2.2 kW Active-Clamp Forward Converter
with Low-Voltage Output}, DOI={10.1109/apec42165.2021.9487130},
booktitle={2021 IEEE Applied Power Electronics Conference and Exposition (APEC)},
publisher={IEEE}, author={Korthauer, Bastian and Rehlaender, Philipp and Schafmeister,
Frank and Böcker, Joachim}, year={2021} }'
chicago: Korthauer, Bastian, Philipp Rehlaender, Frank Schafmeister, and Joachim
Böcker. “Design and Analysis of a Regenerative Snubber for a 2.2 KW Active-Clamp
Forward Converter with Low-Voltage Output.” In 2021 IEEE Applied Power Electronics
Conference and Exposition (APEC). IEEE, 2021. https://doi.org/10.1109/apec42165.2021.9487130.
ieee: 'B. Korthauer, P. Rehlaender, F. Schafmeister, and J. Böcker, “Design and
Analysis of a Regenerative Snubber for a 2.2 kW Active-Clamp Forward Converter
with Low-Voltage Output,” 2021, doi: 10.1109/apec42165.2021.9487130.'
mla: Korthauer, Bastian, et al. “Design and Analysis of a Regenerative Snubber for
a 2.2 KW Active-Clamp Forward Converter with Low-Voltage Output.” 2021 IEEE
Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021, doi:10.1109/apec42165.2021.9487130.
short: 'B. Korthauer, P. Rehlaender, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied
Power Electronics Conference and Exposition (APEC), IEEE, 2021.'
date_created: 2022-02-20T21:20:14Z
date_updated: 2022-02-22T08:28:24Z
department:
- _id: '34'
- _id: '52'
doi: 10.1109/apec42165.2021.9487130
language:
- iso: eng
publication: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC)
publication_status: published
publisher: IEEE
status: public
title: Design and Analysis of a Regenerative Snubber for a 2.2 kW Active-Clamp Forward
Converter with Low-Voltage Output
type: conference
user_id: '66'
year: '2021'
...
---
_id: '29871'
abstract:
- lang: eng
text: "LLC resonant converters typically employ power\r\nMOSFETs in their inverter
stage. The generally weak reverse\r\nrecovery behaviour of the intrinsic body
diodes of those\r\nMOSFETs causes significant turn-on losses when being forced\r\nto
hard commutations. Continuous operation in this way will\r\nlead to self-destruction
of the transistors. Consequently,\r\nzero-voltage switching (ZVS) is essential
in a MOSFET-based\r\ninverter stage. To ensure ZVS, the LLC converter is operated
in\r\nthe inductive region. On the contrary, IGBTs show dominant\r\nturn-off losses
and are therefore conventionally not applied in\r\nLLC converters typically requiring
high switching frequencies\r\nto achieve low output voltages. However, if the
LLC converter\r\nis intentionally designed for capacitive operation, zero-current\r\nswitching
(ZCS) is enabled and thus robust and cost-efficient\r\nIGBTs can be applied in
the inverter stage. The aim of this work\r\nis to investigate the use IGBTs in
the inverter of an LLC\r\nconverter. The theory behind the capacitive operated
LLC is\r\nderived using a switched simulation model and compared with\r\nthe fundamental
harmonic approximation (FHA). The results\r\nprove FHA to be useless for practical
converter design. Instead,\r\na stress value analysis based on switched model
simulations is\r\nproposed to the design a capacitive operated LLC utilizing ZCS.\r\nA
2 kW prototype for on-board EV applications was built to\r\nverify the theory
and design approach. The prototype confirms\r\nthe derived theory and thus the
deployment of IGBTs in the\r\ninverter stage of LLC resonant converters. Synchronous\r\nrectification
turns out to require a specific control solution, but\r\nif given the resulting
efficiency in the most critical operation\r\npoint exceeds the value of a MOSFET-based
(inductive\r\noperated) LLC-design of an identical application. Therefore,\r\nthis
concept should be further developed."
author:
- first_name: Daniel
full_name: Urbaneck, Daniel
id: '60223'
last_name: Urbaneck
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
citation:
ama: 'Urbaneck D, Rehlaender P, Böcker J, Schafmeister F. LLC Converter in Capacitive
Operation Utilizing ZCS for IGBTs – Theory, Concept and Verification of a 2 kW
DC-DC Converter for EVs. In: 2021 IEEE Applied Power Electronics Conference
and Exposition (APEC). ; 2021.'
apa: Urbaneck, D., Rehlaender, P., Böcker, J., & Schafmeister, F. (2021). LLC
Converter in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept and
Verification of a 2 kW DC-DC Converter for EVs. 2021 IEEE Applied Power Electronics
Conference and Exposition (APEC). Applied Power Electronics Conference (APEC),
Arizona.
bibtex: '@inproceedings{Urbaneck_Rehlaender_Böcker_Schafmeister_2021, title={LLC
Converter in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept and
Verification of a 2 kW DC-DC Converter for EVs}, booktitle={2021 IEEE Applied
Power Electronics Conference and Exposition (APEC)}, author={Urbaneck, Daniel
and Rehlaender, Philipp and Böcker, Joachim and Schafmeister, Frank}, year={2021}
}'
chicago: Urbaneck, Daniel, Philipp Rehlaender, Joachim Böcker, and Frank Schafmeister.
“LLC Converter in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept
and Verification of a 2 KW DC-DC Converter for EVs.” In 2021 IEEE Applied Power
Electronics Conference and Exposition (APEC), 2021.
ieee: D. Urbaneck, P. Rehlaender, J. Böcker, and F. Schafmeister, “LLC Converter
in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept and Verification
of a 2 kW DC-DC Converter for EVs,” presented at the Applied Power Electronics
Conference (APEC), Arizona, 2021.
mla: Urbaneck, Daniel, et al. “LLC Converter in Capacitive Operation Utilizing ZCS
for IGBTs – Theory, Concept and Verification of a 2 KW DC-DC Converter for EVs.”
2021 IEEE Applied Power Electronics Conference and Exposition (APEC), 2021.
short: 'D. Urbaneck, P. Rehlaender, J. Böcker, F. Schafmeister, in: 2021 IEEE Applied
Power Electronics Conference and Exposition (APEC), 2021.'
conference:
end_date: 2021-06-17
location: Arizona
name: Applied Power Electronics Conference (APEC)
start_date: 2021-06-14
date_created: 2022-02-18T09:36:01Z
date_updated: 2022-02-23T16:12:38Z
ddc:
- '620'
department:
- _id: '52'
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9487109
publication: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC)
publication_status: published
status: public
title: LLC Converter in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept
and Verification of a 2 kW DC-DC Converter for EVs
type: conference
user_id: '60223'
year: '2021'
...
---
_id: '29893'
abstract:
- lang: eng
text: Phase-shift modulated full bridge converters suffer from thermal imbalances
of the inverter switches. The lagging leg switches are subject to larger commutation
currents compared to those of the leading leg as the transformer current reduces
in the freewheeling interval. Furthermore, after this interval, the energy in
the series inductance may not be large enough to achieve zero-voltage switching
(ZVS) for the leading leg. Both effects result in thermal imbalances. This paper
analyzes the alternating-asymmetrical phase-shift modulation to achieve balanced
conduction and switching losses for all four switches while showing that this
modulation is easily implemented on standard DSPs. The modulation has been implemented
to LLC converters where experimental measurement results proved its effectiveness
for LLC converters by reducing the temperature deviation from 6.3 K to only 0.2
K such that the peak temperature is reduced from 95 °C to 92 °C. The paper also
proves that the modulation can be utilized to improve the efficiency of LLC converters
operated at very low gains while simultaneously reducing the junction temperature
of all four switches compared to the conventional complementary modulation. Finally,
EMI implications are analyzed, which show that the modulation may be beneficial
for reducing the common-mode emissions around the operating frequency.
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Roland
full_name: Unruh, Roland
id: '34289'
last_name: Unruh
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Rehlaender P, Unruh R, Schafmeister F, Böcker J. Alternating Asymmetrical
Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching Losses
to Reduce Thermal Imbalances. In: 2021 IEEE Applied Power Electronics Conference
and Exposition (APEC). IEEE; 2021. doi:10.1109/apec42165.2021.9487104'
apa: Rehlaender, P., Unruh, R., Schafmeister, F., & Böcker, J. (2021). Alternating
Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching
Losses to Reduce Thermal Imbalances. 2021 IEEE Applied Power Electronics Conference
and Exposition (APEC). 2021 IEEE Applied Power Electronics Conference and
Exposition (APEC), Phoenix, AZ, USA. https://doi.org/10.1109/apec42165.2021.9487104
bibtex: '@inproceedings{Rehlaender_Unruh_Schafmeister_Böcker_2021, title={Alternating
Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching
Losses to Reduce Thermal Imbalances}, DOI={10.1109/apec42165.2021.9487104},
booktitle={2021 IEEE Applied Power Electronics Conference and Exposition (APEC)},
publisher={IEEE}, author={Rehlaender, Philipp and Unruh, Roland and Schafmeister,
Frank and Böcker, Joachim}, year={2021} }'
chicago: Rehlaender, Philipp, Roland Unruh, Frank Schafmeister, and Joachim Böcker.
“Alternating Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with
Balanced Switching Losses to Reduce Thermal Imbalances.” In 2021 IEEE Applied
Power Electronics Conference and Exposition (APEC). IEEE, 2021. https://doi.org/10.1109/apec42165.2021.9487104.
ieee: 'P. Rehlaender, R. Unruh, F. Schafmeister, and J. Böcker, “Alternating Asymmetrical
Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching Losses
to Reduce Thermal Imbalances,” presented at the 2021 IEEE Applied Power Electronics
Conference and Exposition (APEC), Phoenix, AZ, USA, 2021, doi: 10.1109/apec42165.2021.9487104.'
mla: Rehlaender, Philipp, et al. “Alternating Asymmetrical Phase-Shift Modulation
for Full-Bridge Converters with Balanced Switching Losses to Reduce Thermal Imbalances.”
2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE,
2021, doi:10.1109/apec42165.2021.9487104.
short: 'P. Rehlaender, R. Unruh, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied
Power Electronics Conference and Exposition (APEC), IEEE, 2021.'
conference:
end_date: 2021-06-17
location: Phoenix, AZ, USA
name: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC)
start_date: 2021-06-14
date_created: 2022-02-20T21:19:46Z
date_updated: 2023-10-20T11:50:25Z
department:
- _id: '34'
- _id: '52'
doi: 10.1109/apec42165.2021.9487104
keyword:
- Phase-Shifted Full Bridge
- Full-Bridge Converter
- Phase-Shift Control
- Phase-Shift Modulation
- LLC Converter
- Thermal Balancing
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/abstract/document/9487104
publication: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC)
publication_identifier:
isbn:
- 978-1-7281-8950-5
publication_status: published
publisher: IEEE
status: public
title: Alternating Asymmetrical Phase-Shift Modulation for Full-Bridge Converters
with Balanced Switching Losses to Reduce Thermal Imbalances
type: conference
user_id: '34289'
year: '2021'
...
---
_id: '29899'
abstract:
- lang: eng
text: LLC resonant converters are typically unsuitable to be applied for wide voltage-transfer
ratio applications. With a full-bridge inverter, however, they can be operated
in a variety of different modulations. Most notably, by permanently turning on
one MOSFET and turning off the other MOSFET of the same bridge leg, the LLC can
be operated in half-bridge configuration reducing the gain by a factor of two.
The resonant capacitor is hereby charged to an average voltage of half the input
voltage. In this modulation, however, the switch that is permanently turned on
is stressed by the complete resonant current while exhibiting no switching losses.
This paper proves that the frequency-doubler modulation can better balance the
losses among all MOSFETs and should be the preferred mode of operation favored
over the conventional half-bridge modulation. This paper analyzes the beneficial
loss distribution, proposes an on-the-fly morphing modulation and discusses potential
operating strategies to further reduce the junction temperature. Furthermore,
it is shown that this modulation can also be altered to achieve the asymmetrical
LLC operation. Experimental measurement results show that the modulation results
in a substantial decrease of the maximum MOSFET temperature and shows that the
converter can be smoothly transitioned during operation from full-bridge modulation
to the frequency-doubler half-bridge operation and back.
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Roland
full_name: Unruh, Roland
id: '34289'
last_name: Unruh
- first_name: Lars
full_name: Hankeln, Lars
last_name: Hankeln
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Rehlaender P, Unruh R, Hankeln L, Schafmeister F, Böcker J. Frequency-Doubler
Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated
in Half-Bridge Configuration. In: 23rd European Conference on Power Electronics
and Applications (EPE’21 ECCE Europe). IEEE; 2021. doi:10.23919/EPE21ECCEEurope50061.2021.9570674'
apa: Rehlaender, P., Unruh, R., Hankeln, L., Schafmeister, F., & Böcker, J.
(2021). Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC
Resonant Converters Operated in Half-Bridge Configuration. 23rd European Conference
on Power Electronics and Applications (EPE’21 ECCE Europe). 23rd European
Conference on Power Electronics and Applications (EPE’21 ECCE Europe), Ghent,
Belgium. https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570674
bibtex: '@inproceedings{Rehlaender_Unruh_Hankeln_Schafmeister_Böcker_2021, title={Frequency-Doubler
Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated
in Half-Bridge Configuration}, DOI={10.23919/EPE21ECCEEurope50061.2021.9570674},
booktitle={23rd European Conference on Power Electronics and Applications (EPE’21
ECCE Europe)}, publisher={IEEE}, author={Rehlaender, Philipp and Unruh, Roland
and Hankeln, Lars and Schafmeister, Frank and Böcker, Joachim}, year={2021} }'
chicago: Rehlaender, Philipp, Roland Unruh, Lars Hankeln, Frank Schafmeister, and
Joachim Böcker. “Frequency-Doubler Modulation for Reduced Junction Temperatures
for LLC Resonant Converters Operated in Half-Bridge Configuration.” In 23rd
European Conference on Power Electronics and Applications (EPE’21 ECCE Europe).
IEEE, 2021. https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570674.
ieee: 'P. Rehlaender, R. Unruh, L. Hankeln, F. Schafmeister, and J. Böcker, “Frequency-Doubler
Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated
in Half-Bridge Configuration,” presented at the 23rd European Conference on Power
Electronics and Applications (EPE’21 ECCE Europe), Ghent, Belgium, 2021, doi:
10.23919/EPE21ECCEEurope50061.2021.9570674.'
mla: Rehlaender, Philipp, et al. “Frequency-Doubler Modulation for Reduced Junction
Temperatures for LLC Resonant Converters Operated in Half-Bridge Configuration.”
23rd European Conference on Power Electronics and Applications (EPE’21 ECCE
Europe), IEEE, 2021, doi:10.23919/EPE21ECCEEurope50061.2021.9570674.
short: 'P. Rehlaender, R. Unruh, L. Hankeln, F. Schafmeister, J. Böcker, in: 23rd
European Conference on Power Electronics and Applications (EPE’21 ECCE Europe),
IEEE, 2021.'
conference:
end_date: 2021-09-10
location: Ghent, Belgium
name: 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE
Europe)
start_date: 2021-09-06
date_created: 2022-02-20T21:29:48Z
date_updated: 2023-02-09T11:01:11Z
department:
- _id: '34'
- _id: '52'
doi: 10.23919/EPE21ECCEEurope50061.2021.9570674
keyword:
- Resonant converter
- High frequency power converter
- Switched-mode power supply
- Converter control
- Control methods for electrical systems
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/abstract/document/9570674
publication: 23rd European Conference on Power Electronics and Applications (EPE'21
ECCE Europe)
publication_identifier:
isbn:
- 978-9-0758-1537-5
publication_status: published
publisher: IEEE
status: public
title: Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC Resonant
Converters Operated in Half-Bridge Configuration
type: conference
user_id: '34289'
year: '2021'
...
---
_id: '29894'
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Sergey
full_name: Tikhonov, Sergey
last_name: Tikhonov
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Rehlaender P, Tikhonov S, Schafmeister F, Böcker J. Dual Interleaved 3.6 kW
LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift Mode as a
Single-Stage Architecture of an Automotive On-Board DC-DC Converter. In: 2020
22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe).
IEEE; 2020. doi:10.23919/epe20ecceeurope43536.2020.9215736'
apa: Rehlaender, P., Tikhonov, S., Schafmeister, F., & Böcker, J. (2020). Dual
Interleaved 3.6 kW LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift
Mode as a Single-Stage Architecture of an Automotive On-Board DC-DC Converter.
2020 22nd European Conference on Power Electronics and Applications (EPE’20
ECCE Europe). https://doi.org/10.23919/epe20ecceeurope43536.2020.9215736
bibtex: '@inproceedings{Rehlaender_Tikhonov_Schafmeister_Böcker_2020, title={Dual
Interleaved 3.6 kW LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift
Mode as a Single-Stage Architecture of an Automotive On-Board DC-DC Converter},
DOI={10.23919/epe20ecceeurope43536.2020.9215736},
booktitle={2020 22nd European Conference on Power Electronics and Applications
(EPE’20 ECCE Europe)}, publisher={IEEE}, author={Rehlaender, Philipp and Tikhonov,
Sergey and Schafmeister, Frank and Böcker, Joachim}, year={2020} }'
chicago: Rehlaender, Philipp, Sergey Tikhonov, Frank Schafmeister, and Joachim Böcker.
“Dual Interleaved 3.6 KW LLC Converter Operating in Half-Bridge, Full-Bridge and
Phase-Shift Mode as a Single-Stage Architecture of an Automotive On-Board DC-DC
Converter.” In 2020 22nd European Conference on Power Electronics and Applications
(EPE’20 ECCE Europe). IEEE, 2020. https://doi.org/10.23919/epe20ecceeurope43536.2020.9215736.
ieee: 'P. Rehlaender, S. Tikhonov, F. Schafmeister, and J. Böcker, “Dual Interleaved
3.6 kW LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift Mode
as a Single-Stage Architecture of an Automotive On-Board DC-DC Converter,” 2020,
doi: 10.23919/epe20ecceeurope43536.2020.9215736.'
mla: Rehlaender, Philipp, et al. “Dual Interleaved 3.6 KW LLC Converter Operating
in Half-Bridge, Full-Bridge and Phase-Shift Mode as a Single-Stage Architecture
of an Automotive On-Board DC-DC Converter.” 2020 22nd European Conference on
Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020, doi:10.23919/epe20ecceeurope43536.2020.9215736.
short: 'P. Rehlaender, S. Tikhonov, F. Schafmeister, J. Böcker, in: 2020 22nd European
Conference on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.'
date_created: 2022-02-20T21:20:00Z
date_updated: 2022-02-22T08:28:40Z
department:
- _id: '34'
- _id: '52'
doi: 10.23919/epe20ecceeurope43536.2020.9215736
language:
- iso: eng
publication: 2020 22nd European Conference on Power Electronics and Applications (EPE'20
ECCE Europe)
publication_status: published
publisher: IEEE
status: public
title: Dual Interleaved 3.6 kW LLC Converter Operating in Half-Bridge, Full-Bridge
and Phase-Shift Mode as a Single-Stage Architecture of an Automotive On-Board DC-DC
Converter
type: conference
user_id: '66'
year: '2020'
...
---
_id: '29896'
abstract:
- lang: eng
text: Automotive DC-DC converters linking the traction battery to the auxiliary
battery are characterized by the wide input and output voltage ranges resulting
from the varying state-of-charge of the traction and auxiliary battery. The wide
voltage transfer ratio needs to be covered for the entire load range conventionally
requiring two-stage converter architectures. Considering a less complex single-stage
solution potentially enabling cost and weight advantages, traditional LLC converters
are unsuitable topologies since it results in a too wide operating frequency range.
Most alternative topology candidates show comparable difficulties. To overcome
this issue, the gain range of the LLC with full-bridge inverter can be extended
by operation in half-bridge mode for low voltage transfer ratios. Phase-shift
operation is utilized for intermediate gains and low loads. This paper describes
a detailed design methodology for the resonant tank. The experimental results
with a peak efficiency of 96.5 % and a power density of 2.1 kW/l prove the proposed
concept.
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Tobias
full_name: Grote, Tobias
last_name: Grote
- first_name: Sergey
full_name: Tikhonov, Sergey
last_name: Tikhonov
- first_name: Schröder
full_name: Mario, Schröder
last_name: Mario
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Rehlaender P, Grote T, Tikhonov S, Mario S, Schafmeister F, Böcker J. A 3,6
kW Single-Stage LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift
Mode for Automotive Onboard DC-DC Conversion. In: PCIM Europe Digital Days
2020. ; 2020.'
apa: Rehlaender, P., Grote, T., Tikhonov, S., Mario, S., Schafmeister, F., &
Böcker, J. (2020). A 3,6 kW Single-Stage LLC Converter Operating in Half-Bridge,
Full-Bridge and Phase-Shift Mode for Automotive Onboard DC-DC Conversion. PCIM
Europe Digital Days 2020. Power Conversion and Intelligent Motion (PCIM),
Nürnberg.
bibtex: '@inproceedings{Rehlaender_Grote_Tikhonov_Mario_Schafmeister_Böcker_2020,
title={A 3,6 kW Single-Stage LLC Converter Operating in Half-Bridge, Full-Bridge
and Phase-Shift Mode for Automotive Onboard DC-DC Conversion}, booktitle={PCIM
Europe digital days 2020}, author={Rehlaender, Philipp and Grote, Tobias and Tikhonov,
Sergey and Mario, Schröder and Schafmeister, Frank and Böcker, Joachim}, year={2020}
}'
chicago: Rehlaender, Philipp, Tobias Grote, Sergey Tikhonov, Schröder Mario, Frank
Schafmeister, and Joachim Böcker. “A 3,6 KW Single-Stage LLC Converter Operating
in Half-Bridge, Full-Bridge and Phase-Shift Mode for Automotive Onboard DC-DC
Conversion.” In PCIM Europe Digital Days 2020, 2020.
ieee: P. Rehlaender, T. Grote, S. Tikhonov, S. Mario, F. Schafmeister, and J. Böcker,
“A 3,6 kW Single-Stage LLC Converter Operating in Half-Bridge, Full-Bridge and
Phase-Shift Mode for Automotive Onboard DC-DC Conversion,” presented at the Power
Conversion and Intelligent Motion (PCIM), Nürnberg, 2020.
mla: Rehlaender, Philipp, et al. “A 3,6 KW Single-Stage LLC Converter Operating
in Half-Bridge, Full-Bridge and Phase-Shift Mode for Automotive Onboard DC-DC
Conversion.” PCIM Europe Digital Days 2020, 2020.
short: 'P. Rehlaender, T. Grote, S. Tikhonov, S. Mario, F. Schafmeister, J. Böcker,
in: PCIM Europe Digital Days 2020, 2020.'
conference:
end_date: 2020-07-08
location: Nürnberg
name: Power Conversion and Intelligent Motion (PCIM)
start_date: 2020-07-07
date_created: 2022-02-20T21:23:34Z
date_updated: 2022-02-23T14:52:41Z
department:
- _id: '34'
- _id: '52'
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/document/9177997
publication: PCIM Europe digital days 2020
status: public
title: A 3,6 kW Single-Stage LLC Converter Operating in Half-Bridge, Full-Bridge and
Phase-Shift Mode for Automotive Onboard DC-DC Conversion
type: conference
user_id: '66'
year: '2020'
...
---
_id: '29898'
abstract:
- lang: eng
text: An onboard DC-DC converter connects the high voltage traction battery to the
low voltage auxiliary battery of an EV. It has to provide power across a wide
range of input and output voltages. This paper presents the design and evaluation
of an economical two-stage converter concept consisting of a first-stage boost
converter and a second-stage LLC converter. While for low input voltages, the
boost converter can supply the second-stage LLC with the optimum bulk voltage,
for high input voltages, the boost converter is turned off and the LLC regulates
the output voltage on its own. Whereas this is unproblematic for high output currents,
for low loads high switching frequencies become necessary. For this purpose, the
LLC needs to be designed for a wide gain range. Traditionally, this is achieved
through a small magnetizing inductance resulting in increased conduction losses.
If an asymmetric duty cycle operation is used to cover the low gains at low output
current, the LLC can be optimized for a better efficiency. A prototype design
proves that the asymmetric duty cycle operation is feasible to achieve a wide
gain range at a high efficiency whereas the conventional design achieves very
poor efficiencies.
author:
- first_name: Tobias
full_name: Rüschenbaum, Tobias
last_name: Rüschenbaum
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Phuong
full_name: Ha, Phuong
last_name: Ha
- first_name: Tobias
full_name: Grote, Tobias
last_name: Grote
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Rüschenbaum T, Rehlaender P, Ha P, Grote T, Schafmeister F, Böcker J. Two-Stage
Automotive DC-DC Converter Design with Wide Voltage-Transfer Range Utilizing Asymmetric
LLC Operation. In: PCIM Europe Digital Days 2020. ; 2020.'
apa: Rüschenbaum, T., Rehlaender, P., Ha, P., Grote, T., Schafmeister, F., &
Böcker, J. (2020). Two-Stage Automotive DC-DC Converter Design with Wide Voltage-Transfer
Range Utilizing Asymmetric LLC Operation. PCIM Europe Digital Days 2020.
PCIM Europe digital days 2020.
bibtex: '@inproceedings{Rüschenbaum_Rehlaender_Ha_Grote_Schafmeister_Böcker_2020,
title={Two-Stage Automotive DC-DC Converter Design with Wide Voltage-Transfer
Range Utilizing Asymmetric LLC Operation}, booktitle={PCIM Europe digital days
2020}, author={Rüschenbaum, Tobias and Rehlaender, Philipp and Ha, Phuong and
Grote, Tobias and Schafmeister, Frank and Böcker, Joachim}, year={2020} }'
chicago: Rüschenbaum, Tobias, Philipp Rehlaender, Phuong Ha, Tobias Grote, Frank
Schafmeister, and Joachim Böcker. “Two-Stage Automotive DC-DC Converter Design
with Wide Voltage-Transfer Range Utilizing Asymmetric LLC Operation.” In PCIM
Europe Digital Days 2020, 2020.
ieee: T. Rüschenbaum, P. Rehlaender, P. Ha, T. Grote, F. Schafmeister, and J. Böcker,
“Two-Stage Automotive DC-DC Converter Design with Wide Voltage-Transfer Range
Utilizing Asymmetric LLC Operation,” presented at the PCIM Europe digital days
2020, 2020.
mla: Rüschenbaum, Tobias, et al. “Two-Stage Automotive DC-DC Converter Design with
Wide Voltage-Transfer Range Utilizing Asymmetric LLC Operation.” PCIM Europe
Digital Days 2020, 2020.
short: 'T. Rüschenbaum, P. Rehlaender, P. Ha, T. Grote, F. Schafmeister, J. Böcker,
in: PCIM Europe Digital Days 2020, 2020.'
conference:
end_date: 2020-07-08
name: PCIM Europe digital days 2020
start_date: 2020-07-07
date_created: 2022-02-20T21:28:08Z
date_updated: 2022-02-23T14:51:13Z
department:
- _id: '34'
- _id: '52'
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/document/9177998
publication: PCIM Europe digital days 2020
status: public
title: Two-Stage Automotive DC-DC Converter Design with Wide Voltage-Transfer Range
Utilizing Asymmetric LLC Operation
type: conference
user_id: '66'
year: '2020'
...
---
_id: '29874'
abstract:
- lang: eng
text: "LLC resonant converters generally employ MOSFETs in the inverter stage, which
can be of half-bridge\r\n(HB) or full-bridge (FB) type. The generally weak intrinsic
(body) diodes of the MOSFETs cause turn-on\r\nlosses when being forced to hard
current commutations finally leading to the components self-destruction when operated
constantly in this way. Consequently, zero-voltage switching (ZVS) operation is
more or less essential in a silicon (Si) MOSFET-based HB or FB. To ensure ZVS,
the LLC is operated in the inductive region, i.e. with lagging resonant current.
On the contrary, IGBTs show dominant turn-off losses\r\nand therefore are conventionally
not applied in LLCs typically requiring high switching frequencies to achieve
low output voltages. Yet, if the LLC is intentionally designed for the capacitive
region, i. e.\r\noperation with leading current, zero-current switching (ZCS)
enabling IGBTs in the inverter stage can be ensured. This paper explores in detail
the LLC in the capacitive operating region and gives design considerations for
a capacitive LLC utilizing both robust and cost-efficient IGBTs for an exemplary
2.2 kW\r\nautomotive on-board DC-DC converter application. The results of a loss
analysis show that the LLC resonant converter can be operated well in the capacitive
region. In the given case, significantly lower\r\noverall and 30 % lower inverter
stage losses are achieved in the thermally relevant worst-case comparison with
an inductive LLC based on Si MOSFETs."
author:
- first_name: Daniel
full_name: Urbaneck, Daniel
id: '60223'
last_name: Urbaneck
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: ' https://orcid.org/0000-0002-8480-7295'
citation:
ama: 'Urbaneck D, Rehlaender P, Schafmeister F, Böcker J. LLC Converter Design in
Capacitive Operation utilizes ZCS for IGBTs – a Concept Study for a 2.2 kW Automotive
DC-DC Stage. In: PCIM Europe Digital Days 2020. ; 2020.'
apa: Urbaneck, D., Rehlaender, P., Schafmeister, F., & Böcker, J. (2020). LLC
Converter Design in Capacitive Operation utilizes ZCS for IGBTs – a Concept Study
for a 2.2 kW Automotive DC-DC Stage. PCIM Europe Digital Days 2020. Power
Conversion and Intelligent Motion (PCIM), Nürnberg.
bibtex: '@inproceedings{Urbaneck_Rehlaender_Schafmeister_Böcker_2020, title={LLC
Converter Design in Capacitive Operation utilizes ZCS for IGBTs – a Concept Study
for a 2.2 kW Automotive DC-DC Stage}, booktitle={PCIM Europe digital days 2020},
author={Urbaneck, Daniel and Rehlaender, Philipp and Schafmeister, Frank and Böcker,
Joachim}, year={2020} }'
chicago: Urbaneck, Daniel, Philipp Rehlaender, Frank Schafmeister, and Joachim Böcker.
“LLC Converter Design in Capacitive Operation Utilizes ZCS for IGBTs – a Concept
Study for a 2.2 KW Automotive DC-DC Stage.” In PCIM Europe Digital Days 2020,
2020.
ieee: D. Urbaneck, P. Rehlaender, F. Schafmeister, and J. Böcker, “LLC Converter
Design in Capacitive Operation utilizes ZCS for IGBTs – a Concept Study for a
2.2 kW Automotive DC-DC Stage,” presented at the Power Conversion and Intelligent
Motion (PCIM), Nürnberg, 2020.
mla: Urbaneck, Daniel, et al. “LLC Converter Design in Capacitive Operation Utilizes
ZCS for IGBTs – a Concept Study for a 2.2 KW Automotive DC-DC Stage.” PCIM
Europe Digital Days 2020, 2020.
short: 'D. Urbaneck, P. Rehlaender, F. Schafmeister, J. Böcker, in: PCIM Europe
Digital Days 2020, 2020.'
conference:
end_date: 2020-07-08
location: Nürnberg
name: Power Conversion and Intelligent Motion (PCIM)
start_date: 2020-07-07
date_created: 2022-02-18T09:42:28Z
date_updated: 2022-02-23T16:12:56Z
ddc:
- '620'
department:
- _id: '52'
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9178220
publication: PCIM Europe digital days 2020
status: public
title: LLC Converter Design in Capacitive Operation utilizes ZCS for IGBTs – a Concept
Study for a 2.2 kW Automotive DC-DC Stage
type: conference
user_id: '60223'
year: '2020'
...
---
_id: '16433'
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Tobias
full_name: Grote, Tobias
last_name: Grote
- first_name: Sergey
full_name: Tikhonov, Sergey
last_name: Tikhonov
- first_name: Hugues
full_name: Niejende, Hugues
last_name: Niejende
- first_name: Frank
full_name: Schafmeister, Frank
last_name: Schafmeister
- first_name: Joachim
full_name: Bocker, Joachim
last_name: Bocker
- first_name: Peter
full_name: Thiemann, Peter
last_name: Thiemann
citation:
ama: 'Rehlaender P, Grote T, Tikhonov S, et al. A PCB Integrated Winding Using a
Litz Structure for a Wireless Charging Coil. In: 2019 21st European Conference
on Power Electronics and Applications (EPE ’19 ECCE Europe). ; 2019. doi:10.23919/epe.2019.8914900'
apa: Rehlaender, P., Grote, T., Tikhonov, S., Niejende, H., Schafmeister, F., Bocker,
J., & Thiemann, P. (2019). A PCB Integrated Winding Using a Litz Structure
for a Wireless Charging Coil. In 2019 21st European Conference on Power Electronics
and Applications (EPE ’19 ECCE Europe). https://doi.org/10.23919/epe.2019.8914900
bibtex: '@inproceedings{Rehlaender_Grote_Tikhonov_Niejende_Schafmeister_Bocker_Thiemann_2019,
title={A PCB Integrated Winding Using a Litz Structure for a Wireless Charging
Coil}, DOI={10.23919/epe.2019.8914900},
booktitle={2019 21st European Conference on Power Electronics and Applications
(EPE ’19 ECCE Europe)}, author={Rehlaender, Philipp and Grote, Tobias and Tikhonov,
Sergey and Niejende, Hugues and Schafmeister, Frank and Bocker, Joachim and Thiemann,
Peter}, year={2019} }'
chicago: Rehlaender, Philipp, Tobias Grote, Sergey Tikhonov, Hugues Niejende, Frank
Schafmeister, Joachim Bocker, and Peter Thiemann. “A PCB Integrated Winding Using
a Litz Structure for a Wireless Charging Coil.” In 2019 21st European Conference
on Power Electronics and Applications (EPE ’19 ECCE Europe), 2019. https://doi.org/10.23919/epe.2019.8914900.
ieee: P. Rehlaender et al., “A PCB Integrated Winding Using a Litz Structure
for a Wireless Charging Coil,” in 2019 21st European Conference on Power Electronics
and Applications (EPE ’19 ECCE Europe), 2019.
mla: Rehlaender, Philipp, et al. “A PCB Integrated Winding Using a Litz Structure
for a Wireless Charging Coil.” 2019 21st European Conference on Power Electronics
and Applications (EPE ’19 ECCE Europe), 2019, doi:10.23919/epe.2019.8914900.
short: 'P. Rehlaender, T. Grote, S. Tikhonov, H. Niejende, F. Schafmeister, J. Bocker,
P. Thiemann, in: 2019 21st European Conference on Power Electronics and Applications
(EPE ’19 ECCE Europe), 2019.'
date_created: 2020-04-06T14:57:01Z
date_updated: 2022-01-06T06:52:50Z
doi: 10.23919/epe.2019.8914900
language:
- iso: eng
publication: 2019 21st European Conference on Power Electronics and Applications (EPE
'19 ECCE Europe)
publication_identifier:
isbn:
- '9789075815313'
publication_status: published
status: public
title: A PCB Integrated Winding Using a Litz Structure for a Wireless Charging Coil
type: conference
user_id: '69469'
year: '2019'
...
---
_id: '16438'
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Frank
full_name: Schafmeister, Frank
last_name: Schafmeister
- first_name: Joachim
full_name: Bocker, Joachim
last_name: Bocker
- first_name: Tobias
full_name: Grote, Tobias
last_name: Grote
citation:
ama: 'Rehlaender P, Schafmeister F, Bocker J, Grote T. Analytical Topology Comparison
for a Single Stage On-Board EV-Battery Converter. In: 2019 IEEE 28th International
Symposium on Industrial Electronics (ISIE). ; 2019. doi:10.1109/isie.2019.8781222'
apa: Rehlaender, P., Schafmeister, F., Bocker, J., & Grote, T. (2019). Analytical
Topology Comparison for a Single Stage On-Board EV-Battery Converter. In 2019
IEEE 28th International Symposium on Industrial Electronics (ISIE). https://doi.org/10.1109/isie.2019.8781222
bibtex: '@inproceedings{Rehlaender_Schafmeister_Bocker_Grote_2019, title={Analytical
Topology Comparison for a Single Stage On-Board EV-Battery Converter}, DOI={10.1109/isie.2019.8781222},
booktitle={2019 IEEE 28th International Symposium on Industrial Electronics (ISIE)},
author={Rehlaender, Philipp and Schafmeister, Frank and Bocker, Joachim and Grote,
Tobias}, year={2019} }'
chicago: Rehlaender, Philipp, Frank Schafmeister, Joachim Bocker, and Tobias Grote.
“Analytical Topology Comparison for a Single Stage On-Board EV-Battery Converter.”
In 2019 IEEE 28th International Symposium on Industrial Electronics (ISIE),
2019. https://doi.org/10.1109/isie.2019.8781222.
ieee: P. Rehlaender, F. Schafmeister, J. Bocker, and T. Grote, “Analytical Topology
Comparison for a Single Stage On-Board EV-Battery Converter,” in 2019 IEEE
28th International Symposium on Industrial Electronics (ISIE), 2019.
mla: Rehlaender, Philipp, et al. “Analytical Topology Comparison for a Single Stage
On-Board EV-Battery Converter.” 2019 IEEE 28th International Symposium on Industrial
Electronics (ISIE), 2019, doi:10.1109/isie.2019.8781222.
short: 'P. Rehlaender, F. Schafmeister, J. Bocker, T. Grote, in: 2019 IEEE 28th
International Symposium on Industrial Electronics (ISIE), 2019.'
date_created: 2020-04-06T14:58:32Z
date_updated: 2022-01-06T06:52:50Z
doi: 10.1109/isie.2019.8781222
language:
- iso: eng
publication: 2019 IEEE 28th International Symposium on Industrial Electronics (ISIE)
publication_identifier:
isbn:
- '9781728136660'
publication_status: published
status: public
title: Analytical Topology Comparison for a Single Stage On-Board EV-Battery Converter
type: conference
user_id: '69469'
year: '2019'
...
---
_id: '16443'
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
- first_name: Maik
full_name: Schroeer, Maik
last_name: Schroeer
- first_name: Gavneet
full_name: Chadha, Gavneet
last_name: Chadha
- first_name: Andreas
full_name: Schwung, Andreas
last_name: Schwung
citation:
ama: 'Rehlaender P, Schroeer M, Chadha G, Schwung A. Traffic Sign Detection Using
R-CNN. In: Proceedings of the International Neural Networks Society. Cham;
2019. doi:10.1007/978-3-030-16841-4_24'
apa: Rehlaender, P., Schroeer, M., Chadha, G., & Schwung, A. (2019). Traffic
Sign Detection Using R-CNN. In Proceedings of the International Neural Networks
Society. Cham. https://doi.org/10.1007/978-3-030-16841-4_24
bibtex: '@inbook{Rehlaender_Schroeer_Chadha_Schwung_2019, place={Cham}, title={Traffic
Sign Detection Using R-CNN}, DOI={10.1007/978-3-030-16841-4_24},
booktitle={Proceedings of the International Neural Networks Society}, author={Rehlaender,
Philipp and Schroeer, Maik and Chadha, Gavneet and Schwung, Andreas}, year={2019}
}'
chicago: Rehlaender, Philipp, Maik Schroeer, Gavneet Chadha, and Andreas Schwung.
“Traffic Sign Detection Using R-CNN.” In Proceedings of the International Neural
Networks Society. Cham, 2019. https://doi.org/10.1007/978-3-030-16841-4_24.
ieee: P. Rehlaender, M. Schroeer, G. Chadha, and A. Schwung, “Traffic Sign Detection
Using R-CNN,” in Proceedings of the International Neural Networks Society,
Cham, 2019.
mla: Rehlaender, Philipp, et al. “Traffic Sign Detection Using R-CNN.” Proceedings
of the International Neural Networks Society, 2019, doi:10.1007/978-3-030-16841-4_24.
short: 'P. Rehlaender, M. Schroeer, G. Chadha, A. Schwung, in: Proceedings of the
International Neural Networks Society, Cham, 2019.'
date_created: 2020-04-06T15:21:15Z
date_updated: 2022-01-06T06:52:50Z
doi: 10.1007/978-3-030-16841-4_24
extern: '1'
language:
- iso: eng
place: Cham
publication: Proceedings of the International Neural Networks Society
publication_identifier:
isbn:
- '9783030168407'
- '9783030168414'
issn:
- 2661-8141
- 2661-815X
publication_status: published
status: public
title: Traffic Sign Detection Using R-CNN
type: book_chapter
user_id: '69469'
year: '2019'
...