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A GaN-Based High-Conversion-Ratio DC-DC Converter with Fast-Transients and Fault-Isolation for Automotive Applications.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	A GaN-Based High-Conversion-Ratio DC-DC Converter with Fast-Transients and Fault-Isolation for Automotive Applications./
Author:	Namburi, Venkata Raghuram.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
Description:	122 p.
Notes:	Source: Masters Abstracts International, Volume: 82-01.
Contained By:	Masters Abstracts International82-01.
Subject:	Electrical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27742402
ISBN:	9798662392533

A GaN-Based High-Conversion-Ratio DC-DC Converter with Fast-Transients and Fault-Isolation for Automotive Applications.
Namburi, Venkata Raghuram.

A GaN-Based High-Conversion-Ratio DC-DC Converter with Fast-Transients and Fault-Isolation for Automotive Applications. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 122 p.

Source: Masters Abstracts International, Volume: 82-01.

Thesis (M.A.S.)--University of Toronto (Canada), 2020.

This item must not be sold to any third party vendors.

Electric vehicles with autonomous-driving or driver-assistance features have introduced computationally intensive and safety-critical integrated circuit modules. A complementary 48-V network has been proposed to enable more efficient power distribution. An efficient high-conversion-ratio architecture is necessary to interconnect the 48-V bus to the low core-voltages (0.8 V - 1.2 V). The focus of this thesis is the design of a 48-V-to-1-V direct power conversion system, which enables efficient low-voltage, high-current power delivery, near-optimal transient response, and fault-isolation. The 6-to-1 hybrid Dickson switched-capacitor topology satisfies these requirements, particularly fault-isolation, without additional components. A selection methodology is utilized to obtain an optimized set of switches with the minimum necessary voltage rating to support fault-isolation and maximize efficiency. An output-capacitor ripple-current based control strategy, featuring inherent flying-capacitor voltage balancing, near deviation-optimal dynamic behavior, and reduced flying-capacitor voltage drain during transients is presented. A prototype is built to verify and demonstrate the claimed properties.

ISBN: 9798662392533Subjects--Topical Terms:

596380
Electrical engineering.
Subjects--Index Terms:

Automotive

A GaN-Based High-Conversion-Ratio DC-DC Converter with Fast-Transients and Fault-Isolation for Automotive Applications.
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245 1 0 $a A GaN-Based High-Conversion-Ratio DC-DC Converter with Fast-Transients and Fault-Isolation for Automotive Applications.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2020
300 $a 122 p.
500 $a Source: Masters Abstracts International, Volume: 82-01.
500 $a Advisor: Trescases, Olivier.
502 $a Thesis (M.A.S.)--University of Toronto (Canada), 2020.
506 $a This item must not be sold to any third party vendors.
520 $a Electric vehicles with autonomous-driving or driver-assistance features have introduced computationally intensive and safety-critical integrated circuit modules. A complementary 48-V network has been proposed to enable more efficient power distribution. An efficient high-conversion-ratio architecture is necessary to interconnect the 48-V bus to the low core-voltages (0.8 V - 1.2 V). The focus of this thesis is the design of a 48-V-to-1-V direct power conversion system, which enables efficient low-voltage, high-current power delivery, near-optimal transient response, and fault-isolation. The 6-to-1 hybrid Dickson switched-capacitor topology satisfies these requirements, particularly fault-isolation, without additional components. A selection methodology is utilized to obtain an optimized set of switches with the minimum necessary voltage rating to support fault-isolation and maximize efficiency. An output-capacitor ripple-current based control strategy, featuring inherent flying-capacitor voltage balancing, near deviation-optimal dynamic behavior, and reduced flying-capacitor voltage drain during transients is presented. A prototype is built to verify and demonstrate the claimed properties.
590 $a School code: 0779.
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653 $a Automotive
653 $a Direct conversion
653 $a Gallium nitride
653 $a High-convertion-ratio
653 $a Switched-capacitor
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