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Design and Optimization of Oil-Cooled Medium-Frequency Transformers with Foil Winding and Toroidal Core for High Power Applications

Siqi Lin

Reihe: Berichte aus dem IAL

Band 05/2024 2024

doi.org/10.51202/9783959009454

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Suppressing Electromagnetic Interference in Switching Converters by Chaotic Duty Modulation

Yuhong Song

Reihe: Informatik/ Kommunikation

Band 850 2017

Treffer in den folgenden Teilen:

Introduction S. 1-13

„… frequency spectra with Fourier Transform. The signal energy can be estimated according to the spectral …” „… and transformers, are susceptible to the varying frequency, chaotic frequency modulation will increase …” „… frequency transformers. Chaotic modulation will be realized by connecting an external chaotic signal to the …”

Realizing Chaotic Duty Modulation S. 44-56

„… , such as power switch, high-frequency transformer and rectifier diode. In Chapter 3, the chaotic duty …” „… conversion. The main circuit includes half-bridge power conversion and the high-frequency transformer, as …” „… demonstrated in the dash-dotted line box of Figure 5.2. The output of high-frequency transformer proceeds to …”

doi.org/10.51202/9783186850102

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Suppressing Electromagnetic Interference in Switching-Mode Power Supplies by Chaotic Carrier Frequency Modulation

Junying Niu

Reihe: Informatik/ Kommunikation

Band 851 2017

Treffer in den folgenden Teilen:

Application of CCFM in LED Drivers S. 45-63

„… high-frequency transformer, which usually heat up as operating. Once their temperatures exceed the safe range …” „… measurments 4.3.4 Test of Key Elements’ Temperature The transistor and high-frequency transformer, the …” „… , the high-frequency transformer should work below 80◦C, otherwise 53 4 Application of CCFM in LED …”

doi.org/10.51202/9783186851109

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ELIV 2023

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2423 2023

Treffer in den folgenden Teilen:

A. Hensel, D. Derix, J. Bornwasser Power electronic system technology for future high-power charging systems on highways or large inner-city electric charging stations with several MVA system size S. 235-246

„… medium voltage, the distribution within the system must not be carried out at low voltage levels. Cable …” „… distances from the medium voltage connection to the vehicle can quickly exceed 100 metres. This is due, on …” „… and, on the other hand, to the required distance to the central operating room of the medium …”

S. Spitzer, S. Wahl Hydrogen – A Game Changer in the Automotive Industry ... and Beyond S. 689-702

„… connectivity unit to the cloud with a certain resolution frequency, therefore detailed investigations of …” „… industrial power generation or PEM Electrolyzer, to transform electrical energy into green hydrogen. Bosch …” „… global presence in development and manufacturing the entry into H2 market for heavy duty (HD) and medium …”

doi.org/10.51202/9783181024232

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International Conference on Gears 2022

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2389 2022

Treffer in den folgenden Teilen:

R. Chen, D. Qin, C. Liu Study on electromechanical coupled dynamic characteristics of transmission system of wind turbine S. 763-778

„… system meshing frequency, just like the high-speed stage meshing frequency fm3, the medium-speed stage …” „… foundation for the structural design of the drive system Time t/sFrequency /Hzb) Short-time Fourier transform …” „… characteristics. There will be electrical system frequency components dominated by 6kfe in the mechanical system …”

doi.org/10.51202/9783181023891

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Autonomous Systems 2016

Herwig Unger (Hrsg.), Wolfgang A. Halang (Hrsg.)

Reihe: Informatik/ Kommunikation

Band 848 2016

Treffer in den folgenden Teilen:

Suppression of Disturbances S. 104-132

„… impaired very slightly. 3.3 Test of Key Elements’ Temperature The transistor and high-frequency transformer …” „… . On the one hand, the high-frequency transformer should work below 80◦C, otherwise its saturation …” „… Frequency Modulation in Switching-mode Power Supply 113 Fig. 8: The thermal curve of the transformer Fig. 9 …”

doi.org/10.51202/9783186848109

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International Conference on Gears 2023

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2422 2023

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T. König, L. Cadau, L. Steidle, M. Kley, D. Cansu Güney, J. Albrecht, K. Weber A concept for comparison of new and aged lubricants in transmissions of electric vehicles and a method of oil aging on a test rig S. 1195-1206

„… instructions for determining flow behavior, temperature behavior, performing the jump test and frequency test …” „… behavior, jump test, frequency test and temperature behavior of the samples. To ensure a valid scientific …” „… behavior, jump test and temperature behavior are measured rotationally, while amplitude test and frequency …”

T. Kleiber, B. Neubauer Advancing to The Next Level – Cost Efficient Roll-Inspection: Back from End-of-Line NVH to Skiving Process S. 1591-1606

„… sections (low, medium, high, gear mesh order, very high) with different complexity of information. The key …” „… ranges of the 2FI’s Fast Fourier’s Transform (FFT) raw data with a resolution of 0.1 [µm]. The target is …” „… close to an existing one, which can result in a disturbing beat frequency. Figure 3 illustrates …”

doi.org/10.51202/9783181024225

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Interactions between enzymes and oxide colloidal particles and their influence on enzymatic activity

Ludmilla Derr

Reihe: Grund- und Werkstoffe/Kunststoffe

Band 760 2016

Treffer in den folgenden Teilen:

Titelei/Inhaltsverzeichnis S. I-XX

„… immobilization using Fourier transform infrared (FTIR) spectroscopy 161 11.8 Source 163 12 Conclusions 164 13 …” „… method FT-IR Fourier transform infrared spectroscopy GRCEL Glycylarginylcysteinylglutamylleucine HCl …” „… wave frequency N Avogadro's number (6.02214129 * 102 3 mol'1) kß Boltzmann constant (1.3806488 * 10' 2 …”

doi.org/10.51202/9783185760051

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Manifold Learning for Super Resolution

Eduardo Pérez Pellitero

Reihe: Informatik/ Kommunikation

Band 859 2018

doi.org/10.51202/9783186859105

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Low-Delay Video Communication System over Wireless Channels Based on HEVC and OFDM

Yasser Estuardo Samayoa Paredes

Reihe: Informatik/ Kommunikation

Band 881 2023

Treffer in den folgenden Teilen:

Communication Systems S. 50-84

„… . Therefore, the first stepis to define which type of channel will be the physical medium of thecommunication …” „… , ..., N − 1. In order to characterize (3.1), it is also con-venient to define the time-frequency …” „… attenuation and phase shift due to n2. As a result, (3.4) does notdepend on the absolute frequency values k1 …”

doi.org/10.51202/9783186881106

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International Conference on Gears 2019

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2355 2019

Treffer in den folgenden Teilen:

B. Brodmann, H. Bodschwinna Scattered light measurement on worm gears with high efficiency requirements S. 1567-1578

„… or the wavelength spectrum of the Fourier transform of the profile. However, this is on the one hand …” „… frequencies mandatory. As a result, the required high-frequency components of the surface are lost or the …” „… profile 2 are identical. However, considering the frequency distribution of the profile angles p(θ), it …”

doi.org/10.51202/9783181023556

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Analysis of Affine Motion Compensated Prediction and its Application in Aerial Video Coding

Holger Meuel

Reihe: Informatik/ Kommunikation

Band 865 2019

Treffer in den folgenden Teilen:

Rate-Distortion Theory for Affine Motion Compensation in Video Coding S. 37-64

„… ′. ¿e Fourier transform of p∆X′ , ∆Y ′(∆x′ , ∆y′) is P(Λ), which will be used for subsequent derivations …” „… . Λ here abbreviates the two-dimensional (2D) spatial frequency vector Λ ∶= (ωx ,ωy) for reasons of …” „… Wiener-Khinchin theorem, the power spectral density (PSD) of the signal Sss(Λ) is the Fourier transform of this …”

doi.org/10.51202/9783186865106

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OPE Journal

Alle Ausgaben: OPE Journal

OPE Jahrgang 14 (2024) Heft 46 ISSN Online: 2366-8040

Treffer in den folgenden Teilen:

Bettina Maurer Survey on the Future of Mobility: Germans Believe in Autonomous Driving / Fraunhofer FEP: New High-Speed Light Modulation for OLED, Micro-LED, LCOS / Oxford PV Sets New Solar Panel Efficiency World Record / European Innovators Launch GRAPHERGIA Project to Revolutionise Energy Harvesting S. 4

„… Nano-Bionics/China)Frequency of Publication: 4 issues per yearSubscription Price: Germany € 107.00 per year incl. VAT; EU …” „… transform how we use and store energy.At the heart of GRAPHERGIA lies the goal to develop and deploy …” „… customers to make fact-based decisions."The new digital medium GREEN.WORKS reports daily on latest …”

doi.org/10.51202/2366-8040-2024-46

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Messunsicherheit 2019

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2365 2019

doi.org/10.51202/9783181023655

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Graphical Model MAP Inference with Continuous Label Space in Computer Vision

Oliver Müller

Reihe: Informatik/ Kommunikation

Band 860 2018

Treffer in den folgenden Teilen:

Appendix S. 111-127

„… scattered medium with the tissue-air interface modeled by a step edge function convolved with a Gaussian …” „… amplitude and phase to simulate periodic movement. Low-frequency random shift of up to±20 px is added for …” „… the implant base are estimated with a fast generalized 3D Hough transform approach, optimizing the …”

doi.org/10.51202/9783186860101

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