Sökning: "Circuit Theory"

Visar resultat 16 - 20 av 89 avhandlingar innehållade orden Circuit Theory.

1. 16. Charge Sampling Circuits and A/D Converters - Theory and Experiments

   Författare :Gang Xu; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pipelined A D converter; sigma-delta modulator; differential difference comparator; 2-step A D converter; FIR filter; analog filter; thermal noise; clock jitter; sub-sampling; RF sampling; current-mode sampling; Charge samling; A D converter; flexible A D converter; Electronics and Electrical technology; Elektronik och elektroteknik;

   Sammanfattning : The analysis of general charge sampling technique is presented in this thesis. Charge sampling integrates input current instead of tracking input voltage to realize high speed and low voltage sampling. The analysis focuses on the performance of general charge sampling circuits for signal capture. LÄS MER

3. 17. Theory and Design of Efficient Active Load Modulation Power Amplifiers

   Författare :Han Zhou; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GaN; circulator; non-reciprocity; Doherty power amplifier; Combiner synthesis; CLMA; deep power back-off; energy efficiency;

   Sammanfattning : The increasing demand for mobile data traffic has put new challenges and requirements for the development of the wireless communication infrastructure. The performance of the RF power amplifier (PA) is, in particular, of great importance, since it is the key building block for microwave transmitters in base stations and radio link equipment. LÄS MER

4. 18. Probing quantum and classical noise in nano circuits

   Författare :Arsalan Pourkabirian; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; transmon; vacuum fluctuations; circuit-QED; SET; dynamical Casimir effect; two-level fluctuator; artificial atom; SQUID; charge noise;

   Sammanfattning : This thesis presents measurements of classical and quantum noise in nano circuits.The first part of the thesis, covers extensive measurements on charge noise sources.Low-frequency charge noise with the power spectrum close to 1/f(wherefis thefrequency) has been observed in a variety of systems. LÄS MER

5. 19. Neuromechanical basis of airflow-dependent antennal positioning in hawkmoths

   Författare :Dinesh Natesan; Örjan Ekeberg; Sanjay P. Sane; Volker Dürr; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; insect antennae; antennal positioning; antennal hair plates; Böhm’s bristles; Johnston’s organs; control theory; hierarchical neural circuits; tuneable feedback loop; flexible reflexes; Computer Science; Datalogi;

   Sammanfattning : Fast behaviors, seen in varied life forms, are often considered to be stereotypic and reflexive and the control neural circuits to be hard-wired. However, many such reflexes have been shown to respond in a context-dependent manner. LÄS MER

7. 20. Improvement Potential and Equalization Circuit Solutions for Multi-drop DRAM Memory Buses

   Författare :Henrik Fredriksson; Christer Svensson; Georg Braun; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Equalization; High speed IO; memory capacity; multi-drop buses; communication capacity; ASIC design; Electronics; Elektronik;

   Sammanfattning : Digital computers have changed human society in a profound way over the last 50 years. Key properties that contribute to the success of the computer are flexible programmability and fast access to large amounts of data and instructions. LÄS MER