Sökning: "operational amplifier"

Visar resultat 16 - 20 av 24 uppsatser innehållade orden operational amplifier.

  1. 16. Audio power amplifier design

    Kandidat-uppsats, Avdelningen för elektronik, matematik och naturvetenskap

    Författare :JINGJIE SUN; YINGJUN CHEN; [2011]
    Nyckelord :audio power amplifier;

    Sammanfattning : The audio power amplifier is used to amplify low-power audio signals to a level that can be suitable for driving the loudspeakers. Thus the audio power amplifier becomes a kind of essential part in the electronics that could make sounds. In this thesis, a good performance audio power amplifier with tonality control is designed. LÄS MER

  3. 17. A Study on the Design of Reconfigurable ADCs

    Master-uppsats, Elektroniksystem; Tekniska högskolan

    Författare :Prakash Harikumar; Anu Kalidas Muralidharan Pillai; [2011]
    Nyckelord :ADC; Sigma-Delta; Delta-Sigma; MASH; Pipelined; Reconfigurable; MDAC; Loop filter; Switched-Capacitor; SNDR; Time-interleaved; Flash;

    Sammanfattning : Analog-to-Digital Converters (ADCs) can be classified into two categories namely Nyquist-rate ADCs and OversampledADCs. Nyquist-rate ADCs can process very high bandwidths while Oversampling ADCs provide high resolution using coarse quantizers and support lower input signal bandwidths. LÄS MER

  4. 18. Realization of Cascade of Resonators with Distributed Feed-Back Sigma-Delta

    Master-uppsats, Institutionen för systemteknik

    Författare :Jawad Saleem; Abdul Mateen Malik; [2009]
    Nyckelord :sigma-delta modulator; operational transconductance amplfier; analog to digital converter; digital to analog converter; signal flow graph;

    Sammanfattning : The Sigma Delta Modulator (SDM) based analog to digital conversion is cost effective and have the advantages as higher reliability, increased functionality, and reduction in chip cost. The thesis work includes the modeling of SDM with the signal flow graph in Matlab, optimization of the coefficients to improve the noise transfer function and signal transfer function. LÄS MER

  5. 19. RF Sampling by Low Pass ΣΔ Converter for Flexible Receiver Front End

    Master-uppsats, Institutionen för systemteknik

    Författare :Fahad Qazi; [2009]
    Nyckelord :RF sampling; Sampling Mixer; Downconversion; Sigma Delta modulator; Low pass Sigma Delta ADC; Passive Sigma Delta ADC; Mixer inside the loop;

    Sammanfattning : In today’s world the multi-standard wireless receivers are gaining more and more popularity. End-users want to access voice, data and streaming media from a single wireless terminal. An ideal approach for multi-standard receiver front-end is to digitize a wide band RF signal available from the antenna. LÄS MER

  7. 20. Evaluation of different CMOS processes using a circuit optimization tool

    Uppsats för yrkesexamina på grundnivå, Elektroniksystem

    Författare :Anders Johansson; [2009]
    Nyckelord :CMOS process; Scaling; Operational transconductance amplifier; Optimization tool;

    Sammanfattning : The geometry of CMOS processes has decreased in a steady pace over the years at the same time as the complexity has increased. Even if there are more requirements on the designer today, the main goal is still the same: to minimize the occupied area and power dissipation. LÄS MER