Open Access Theses and Dissertations

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Virginia Tech

1. Watt, Grace R. Impact of Device Parametric Tolerances on Current Sharing Behavior of a SiC Half-Bridge Power Module.

Degree: MS, Electrical Engineering, 2020, Virginia Tech

URL: http://hdl.handle.net/10919/96559 

This paper describes the design, construction, and testing of advanced power devices for use in electric vehicles. Power devices are necessary to supply electricity to different parts of the vehicle; for example, energy is stored in a battery as direct current (DC) power, but the motor requires alternating current (AC) power. Therefore, power electronics can alter the energy to be delivered as DC or AC. In order to carry more power, multiple devices can be used together just as 10 people can carry more weight than 1 person. However, because the devices are not perfect, there can be slight differences in the performance of one device to another. One device may have to carry more current than another device which could cause failure earlier than intended. In this research project, multiple power devices were placed into a package, or "module." In a control module, the devices were selected with similar properties to one another. In an experimental module, the devices were selected with properties very different from one another. It was determined that the when the devices were 17.7% difference, there was 119.9 µJ more energy loss and it was 22.2°C hotter than when the difference was only 0.6%. However, the severity of the difference was dependent on how multiple device characteristics interacted with one another. It may be possible to compensate some of the impact of device differences in one characteristic with opposing differences in another device characteristic. Advisors/Committee Members: Burgos, Rolando (committeechair), Lu, Guo Quan (committee member), Dimarino, Christina Marie (committee member), Ngo, Khai D. (committee member).

Subjects/Keywords: SiC MOSFET; power module packaging; flexible PCB; current sharing; symmetrical direct bonded copper (DBC) layout; diode-less module; multi-chip module; device parametric tolerances; package parasitics; vertical GaN

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Watt, G. R. (2020). Impact of Device Parametric Tolerances on Current Sharing Behavior of a SiC Half-Bridge Power Module. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/96559

Chicago Manual of Style (16th Edition):

Watt, Grace R. “Impact of Device Parametric Tolerances on Current Sharing Behavior of a SiC Half-Bridge Power Module.” 2020. Masters Thesis, Virginia Tech. Accessed January 27, 2021. http://hdl.handle.net/10919/96559.

MLA Handbook (7th Edition):

Watt, Grace R. “Impact of Device Parametric Tolerances on Current Sharing Behavior of a SiC Half-Bridge Power Module.” 2020. Web. 27 Jan 2021.

Vancouver:

Watt GR. Impact of Device Parametric Tolerances on Current Sharing Behavior of a SiC Half-Bridge Power Module. [Internet] [Masters thesis]. Virginia Tech; 2020. [cited 2021 Jan 27]. Available from: http://hdl.handle.net/10919/96559.

Council of Science Editors:

Watt GR. Impact of Device Parametric Tolerances on Current Sharing Behavior of a SiC Half-Bridge Power Module. [Masters Thesis]. Virginia Tech; 2020. Available from: http://hdl.handle.net/10919/96559


Brno University of Technology

2. Červinková, Kateřina. NOVÉ NA STARÉ – Brno, nároží Bratislavská - Stará: NEW ON THE „OLD“ – Brno, Bratislavská - Stará Corner.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/31037 

The territory is located in the city of Brno -center , on the corner position Bratislavska streets and Stara. It consists of several parcels that are currently undeveloped , or the construction of a temporary nature on them. Part of the defined area is now used as a parking lot of the Police of the Czech Republic . From the historic center it divides traffic - a small city street circuit leading to fluctuate. In the vicinity of the area are mostly townhouses with shopping level , built between the 19th - 1st half . 20th century. On the street in Bratislava theater is Joy and Puppet Museum and on the street a few old buildings that are registered in the central register of cultural monuments of the country. The old and the Bratislava streets are typical of the gallery houses with courtyards previously served as business premises . Today, these small companies but totally overcrowded scale and most low companies in this area collapsed or are in a neglected state. The whole area lacks public greenery and foliage is the closest city to the hamlet of liberation, located behind the traffic circle . The concept is based on the position of parcels - on the corner . The idea was to create a peaceful place to live and space for relaxation and meetings. The proposal consists of four masses , to bind and penetrate each other. Each material has its own separate function . Low - on the corner - allows infantry input to a depth of plot and thus offers a view of the surrounding historic facade. Compositions containing residential buildings are raised on the ground floor and the entire floor becomes a public space offers the opportunity to stroll through the old streets of Bratislavská on the street greenery, which in this area is insufficient. Advisors/Committee Members: Marek, Jiří (advisor), Odvárka, Antonín (referee).

Subjects/Keywords: bytový dům; nároží; pavlače; sociální bydlení; koncept; parkovací zakladač; dispozice; malometrážní byty; modul; apartment building; corner; galleries; social housing; concept; parking stacker; layout; small flats; module

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Červinková, K. (2019). NOVÉ NA STARÉ – Brno, nároží Bratislavská - Stará: NEW ON THE „OLD“ – Brno, Bratislavská - Stará Corner. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/31037

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Červinková, Kateřina. “NOVÉ NA STARÉ – Brno, nároží Bratislavská - Stará: NEW ON THE „OLD“ – Brno, Bratislavská - Stará Corner.” 2019. Thesis, Brno University of Technology. Accessed January 27, 2021. http://hdl.handle.net/11012/31037.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Červinková, Kateřina. “NOVÉ NA STARÉ – Brno, nároží Bratislavská - Stará: NEW ON THE „OLD“ – Brno, Bratislavská - Stará Corner.” 2019. Web. 27 Jan 2021.

Vancouver:

Červinková K. NOVÉ NA STARÉ – Brno, nároží Bratislavská - Stará: NEW ON THE „OLD“ – Brno, Bratislavská - Stará Corner. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 27]. Available from: http://hdl.handle.net/11012/31037.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Červinková K. NOVÉ NA STARÉ – Brno, nároží Bratislavská - Stará: NEW ON THE „OLD“ – Brno, Bratislavská - Stará Corner. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/31037

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


Brno University of Technology

3. Šmaha, Pavel. Návrh a implementace elektronického obchodu firmy: Design and Implementation of E-commerce for the company.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/25964 

Bachelor thesis is primarily concerned to the design and structure of the emerging internet business running on open source distribution. Graphic design is based on the analysis of the business environment, competitor analysis and analysis of modern trends and is limited by project financial budget and application software. In addition, the thesis deals with the possibilities of establishing company, creates the business plan and discuss formalities of new-tour company on the market and also focuses on the future of company internet promotion. Advisors/Committee Members: Luhan, Jan (advisor), Šúryová, Tatiana (referee).

Subjects/Keywords: Podnikatelský plán; strategická analýza; finanční analýza; B2C; B2B; open-source; modul; webová stránka; design; grafika; CMS; elektronický obchod; informační technologie; CSS; PHP; nákres; widget.; Business plan; strategic analysis; financial analysis; B2C; B2B; open-source; module; website; CMS; design; graphics; electronic business; information technology; WWW; HTML; CSS; PHP; layout; widget.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Šmaha, P. (2019). Návrh a implementace elektronického obchodu firmy: Design and Implementation of E-commerce for the company. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/25964

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Šmaha, Pavel. “Návrh a implementace elektronického obchodu firmy: Design and Implementation of E-commerce for the company.” 2019. Thesis, Brno University of Technology. Accessed January 27, 2021. http://hdl.handle.net/11012/25964.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Šmaha, Pavel. “Návrh a implementace elektronického obchodu firmy: Design and Implementation of E-commerce for the company.” 2019. Web. 27 Jan 2021.

Vancouver:

Šmaha P. Návrh a implementace elektronického obchodu firmy: Design and Implementation of E-commerce for the company. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 27]. Available from: http://hdl.handle.net/11012/25964.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Šmaha P. Návrh a implementace elektronického obchodu firmy: Design and Implementation of E-commerce for the company. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/25964

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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