Sökning: "OpAmp"

Hittade 5 avhandlingar innehållade ordet OpAmp.

1. 1. Silicon Carbide Sigma-Delta Modulatorfor High Temperature Applications

   Författare :Ye Tian; Carl-Mikael Zetterling; Ana Rusu; Jerzy Dabrowski; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; silicon carbide SiC ; bipolar; sigma-delta; data conversion; OpAmp; integrated circuit IC ; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : .... LÄS MER

3. 2. High-Temperature Analog and Mixed-Signal Integrated Circuits in Bipolar Silicon Carbide Technology

   Författare :Raheleh Hedayati; Carl-Mikael Zetterling; H. Alan Mantooth; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; silicon carbide SiC ; bipolar junction transistor BJT ; high temperature; SiC integrated circuit; Spice Gummel-Poon SGP ; operational amplifier opamp ; negative feedback amplifier; bandgap reference; masterslave comparator; digital-to-analog converter DAC ; analog-to-digital converter ADC ; flash ADC; successive approximation register SAR ADC; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Silicon carbide (SiC) integrated circuits (ICs) can enable the emergence of robust and reliable systems, including data acquisition and on-site control for extreme environments with high temperature and high radiation such as deep earth drilling, space and aviation, electric and hybrid vehicles, and combustion engines. In particular, SiC ICs provide significant benefit by reducing power dissipation and leakage current at temperatures above 300 °C compared to the Si counterpart. LÄS MER

4. 3. SiC Readout IC for High Temperature Seismic Sensor System

   Författare :Ye Tian; Carl-Mikael Zetterling; Ana Rusu; Philip A. Mawby; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Silicon carbide SiC ; bipolar junction transistor BJT ; integrated circuit IC ; sigma-delta Σ∆ ; data conversion; operational amplifier OpAmp ; VBIC; SPICE Gummel-poon; high-temperature; electromechanical; accelerometer; capacitive sensor; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : Over the last decade, electronics operating at high temperatures have been increasingly demanded to support in situ sensing applications such as automotive, deep-well drilling and aerospace. However, few of these applications have requirements above 460 °C, as the surface temperature of Venus, which is a specific target for the seismic sensing application in this thesis. LÄS MER

5. 4. Bipolar Silicon Carbide Integrated Circuits for High Temperature Power Applications

   Författare :Saleh Kargarrazi; Carl-Mikael Zetterling; Erik Lind; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Silicon Carbide (SiC) is suggested as a superior material for high temperature and high power electronic applications, thanks to its excellent properties. In this thesis, design and measurements of integrated circuits in bipolar 4H-SiC aiming for high temperature power applications are reported. LÄS MER

7. 5. Low-Power Delta-Sigma Modulators for Medical Applications

   Författare :Ali Fazli Yeknami; Atila Alvandpour; Martin Anderson; Linköpings universitet; []
   Nyckelord :;

   Sammanfattning : Biomedical electronics has gained significant attention in healthcare. A general biomedical device comprises energy source, analog-to-digital conversion (ADC), digital signal processing, and communication subsystem, each of which must be designed for minimum energy consumption to adhere to the stringent energy constraint. LÄS MER