Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
High Temperature Bipolar SiC Power Integrated Circuits
KTH, Skolan för informations- och kommunikationsteknik (ICT), Elektronik, Integrerade komponenter och kretsar.
2017 (Engelska)Doktorsavhandling, monografi (Övrigt vetenskapligt)
Abstract [en]

In the recent decade, integrated electronics in wide bandgap semiconductor technologies such as Gallium Nitride (GaN) and Silicon Carbide (SiC) have been shown to be viable candidates in extreme environments (e.g high-temperature and high radiation). Such electronics have applications in down-hole drilling, automobile-, air- and space- industries. In this thesis, integrated circuits (ICs) in bipolar 4H-SiC for high-temperature power applications are explored. In particular, device modelling, circuit design, layout design, and measurements are discussed for a range of circuits including operational amplifiers, linear voltage regulators, drivers for power switches, and power converters with integrated control. The circuits were demonstrated and tested from 25 °C up to 500 °C. Circuit design in bipolar SiC technology involves challenges such as the fabrication process’ uncertainties and incomplete models of the devices. Furthermore, high temperature modelling of the integrated devices is needed for circuit design and simulation. From the circuit design viewpoint, techniques such as negative-feedback, temperature-insensitive biasing, buffering and Darlington stages, and amplifiers with fewer gain stages, were shown to be useful for high-temperature IC design in bipolar SiC. It is shown that the linear voltage regulator can be improved by using a tailored high-current lateral Darlington power device in the same fabrication process. This results in a high temperature high current power supply solution. Moreover, the drivers can be improved by design in order to provide higher voltage levels and peak currents for the power devices (bipolar and MOSFET based). In addition, a DC-DC converter with fully integrated hysteretic control is designed taking advantage of several sub-circuits such as operational amplifier, Schmitt trigger and driver for the power switch. This study is followed by preliminary experimental results for the converter and controller IC.

Ort, förlag, år, upplaga, sidor
Stockholm: KTH Royal Institute of Technology, 2017. , s. 87
Serie
TRITA-ICT ; 2017:05
Nationell ämneskategori
Annan elektroteknik och elektronik
Forskningsämne
Informations- och kommunikationsteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-201618ISBN: 978-91-7729-262-3 (tryckt)OAI: oai:DiVA.org:kth-201618DiVA, id: diva2:1073421
Disputation
2017-03-10, Ka-Sal C (Sal Sven-Olof Öhrvik), Electrum, KTH, Kistagången 16, Kista, Stockholm, 10:00 (Engelska)
Opponent
Handledare
Forskningsfinansiär
Stiftelsen för strategisk forskning (SSF), 66159
Anmärkning

QC 20170213

Tillgänglig från: 2017-02-13 Skapad: 2017-02-10 Senast uppdaterad: 2017-02-15Bibliografiskt granskad

Open Access i DiVA

HT-SiC-IC(14206 kB)231 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 14206 kBChecksumma SHA-512
d4810a6491e9528bddfe747ecadd543fef30914f636e8ccab4a19b65996a762945c653ca4174d7aaa5ab6926ab76d992a45c47a69055428da7e5cbee2c90c9d4
Typ fulltextMimetyp application/pdf

Sök vidare i DiVA

Av författaren/redaktören
Kargarrazi, Saleh
Av organisationen
Integrerade komponenter och kretsar
Annan elektroteknik och elektronik

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 231 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

isbn
urn-nbn

Altmetricpoäng

isbn
urn-nbn
Totalt: 5771 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf