Browsing by Author "Dündar, Günhan,"

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  • Novel design methods for analog design automation tools 
    Berkol, Gönenç. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Improvements in fabrication processes have enabled designers to bene t from sub-micron devices, which have led to the integration of multibillion transistors. However, circuit complexity increases together with the silicon ...
  • Power analysis and low power realization of digital filter structures 
    Batur, Okan Zafer. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Digital Filters are important for Digital Signal Processing (DSP) systems. They are widely used in image, speech processing, data transmission. Digital Filters can be used to reduce noise in the system, get information ...
  • Power aware switched capacitor integrator design 
    Korkmaz, Seyrani. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Switched Capacitors are used as resistors because they have better accuracy and they consume less die area than other resistor implementations in integrated circuits. In this technique, a capacitor is charged and discharged ...
  • Power optimization and modeling of switched-capacitor integrators suitable for delta-sigma modulators 
    Evci, Gökhan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    In this thesis, the power dissipation aspects of the Switched-Capacitor (SC) integrators used in Delta-Sigma ( ) modulators are treated. Delta-Sigma modulators which employ oversampling are one of the most critical types ...
  • Realization and analysis of high performance physical unclonable functions based on ring oscillators 
    Kömürcü, Giray. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Physical Unclonable Functions (PUFs) are powerful techniques that are proposed recently to address security related problems. They have a wide range of applications including cryptographic key generation and storage, ...
  • Ring oscillator based randon number generators 
    Güler, Ülkühan. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    System-on-a-chip solutions require hardware based integrated circuit (IC) random number generator (RNG) for trustworthy transmission of information. Fully digital gate based IC RNGs became popular because of their uncomplicated ...
  • Robust ultra-wideband tranceiver integrated circuit design 
    Batur, Okan Zafer. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Pulse-based wideband and UWB radios are well known for their use in radar technology. UWB has also been popular for its use on high data rate applications in recent years. UWB wireless sensor networks are known for their ...
  • Second order sigma delta modulator architecture with low voltage swing at the output of the first integrator 
    Çakır, Necmettin Levent. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    The technological improvements in digital Very Large Scale Integration (VLSI) circuits increase the need of analog digital converter with high performance and lower power consumption. Primarily, the oversampling techniques ...
  • Sigma-delta dithering based frequency synthesis and modulation for DCS-1800 
    Atasoy, Oğuz. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Today cell phone industry tends to increase the capabilities of the cell phones and at the same time minimize the cost. This trend reflects itself to frequency synthesizer design. Hence, a cheap and efficient way of designing ...
  • Standard cell all-digital phase locked loop design, analysis and high-level synthesis 
    Balcıoğlu, Yalçın. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    This thesis presents a new quantization noise suppression method for a timeto- digital Converter (TDC) and proposes an all-digital phase locked loop (ADPLL) architecture using only standard cell logic gates. Using new ...
  • Super regenerative receiver design for medical implant devices 
    Pekçokgüler, Naci. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Implant devices are one kind of the state-of-art medical equipment, which have been started to be used widely in diagnosis and treatment. Implanted devices require wireless data transfer for the comfort of patients and ...
  • System level design of phase locked loops 
    Ak, Şeref Ersin. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2004., 2004.)
    Phase Locked Loops (PLLs) are extensively used in microprocessors and digital signal processors for clock generation and as frequency synthesizers in RF communication systems for clock extraction and generation of a low ...
  • The design aspects of an optically powered CMOS receiver front-end for electrically isolated applications 
    Aktan, Ozan. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    The receiver circuitry in a wireless communication system is a key component in determining the overall system performance. The power of the receiver circuitry is usually provided from a battery or through copper wires. ...
  • VLSI implementation of a new standard for lossless compression of continuous-tone still images 
    Aktürk, A. Suat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1998., 1998.)
    In this thesis, an integrated circuit realizing lossless compression of continuous-tone still images is designed. Lossless compression has two main parts. In the encoding part, digital source image data are encoded in order ...
  • VLSI implementation of a secure communication system using current-mode chaotic circuits 
    Nişancı, Sedat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    Analogue IC(Integrated Circuit) design is historically seen as a voltage dominated form of signal processing. In fact, the analogue devices that are often used (e.g. transistors) are current output devices, so we can utilize ...
  • Yet another simulation based sensitivity analysis tool for analog layout generation 
    Şen, Taşkın. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    In this thesis, a high performance and flexible analysis tool is presented for computing the sensitivities of performance measures of analog integrated circuits to the parasitic effects that are introduced during layout ...

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