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![Design Methodology for a High-Frequency Transformer in an Isolating DC-DC Converter için kapak resmi Design Methodology for a High-Frequency Transformer in an Isolating DC-DC Converter için kapak resmi](/client/assets/d79c3e4af2b6d196/ctx/images/no_image.png)
Design Methodology for a High-Frequency Transformer in an Isolating DC-DC Converter
Başlık:
Design Methodology for a High-Frequency Transformer in an Isolating DC-DC Converter
Yazar:
Duppalli, Veda Samhitha, author.
ISBN:
9780438018358
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (265 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
Advisors: Scott D. Sudhoff Committee members: Dionysios C. Aliprantis; Dan Jiao; Steven D. Pekarek.
Özet:
The objective of this work is to propose a design methodology for a high-frequency transformer in the context of an isolating DC-DC converter. The design challenges relating to high-frequency operation include transformer parasitics, high-frequency loss mechanisms, and their coupled effect on the performance of the transformer and DC-DC converter. These issues are addressed in this work by incorporating high-frequency effects into the relevant magnetic, electrical, and thermal analyses needed for multi-objective optimization based design.
First, an accurate and computationally-efficient method for the transformer magnetic analysis is proposed. Leakage inductance is calculated using a procedure based on the Biot-Savart law and the method of mirror images. The method is validated for a prototype high-frequency transformer. Another key issue addressed is high-frequency transformer loss estimation. In this regard, the winding loss due to proximity effect is analyzed. A simplified time-domain model of the DC-DC converter is set forth to determine the transformer currents necessary for loss estimation. Next, analytical methods are used to estimate the parasitic capacitances in a transformer. The high-frequency transformer common-mode and differential mode impedances are derived. A transformer thermal analysis is set forth to estimate the temperature rise in the windings and to include the thermal effect on conductor material parameters. Finally, these analyses are coupled using a multi-objective optimization in order to create a new comprehensive and automated high-frequency transformer design paradigm.
Notlar:
School code: 0183
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(680225.1) | 680225-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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