Ideal Operational Amplifier

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Serge Reynaud - One of the best experts on this subject based on the ideXlab platform.

  • Quantum noise in Ideal Operational Amplifiers
    EPL, 1999
    Co-Authors: Jean-michel Courty, Francesca Grassia, Serge Reynaud
    Abstract:

    We consider a model of quantum measurement built on an Ideal Operational Amplifier operating in the limit of infinite gain, infinite input impedance and null output impedance and with a feedback loop. We evaluate the intensity and voltage noises which have to be added to the classical amplification equations in order to fulfill the requirements of quantum mechanics. We give a description of this measurement device as a quantum network scattering quantum fluctuations from input to output ports.

  • Quantum noise in Ideal Operational Amplifiers
    EPL - Europhysics Letters, 1999
    Co-Authors: Jean-michel Courty, Francesca Grassia, Serge Reynaud
    Abstract:

    We consider a model of quantum measurement built on an Ideal Operational Amplifier operating in the limit of infinite gain, infinite input impedance and null output impedance and with a feddback loop. We evaluate the intensity and voltage noises which have to be added to the classical amplification equations in order to fulfill the requirements of quantum mechanics. We give a description of this measurement device as a quantum network scattering quantum fluctuations from input to output ports.

Jean-michel Courty - One of the best experts on this subject based on the ideXlab platform.

  • Quantum noise in Ideal Operational Amplifiers
    EPL, 1999
    Co-Authors: Jean-michel Courty, Francesca Grassia, Serge Reynaud
    Abstract:

    We consider a model of quantum measurement built on an Ideal Operational Amplifier operating in the limit of infinite gain, infinite input impedance and null output impedance and with a feedback loop. We evaluate the intensity and voltage noises which have to be added to the classical amplification equations in order to fulfill the requirements of quantum mechanics. We give a description of this measurement device as a quantum network scattering quantum fluctuations from input to output ports.

  • Quantum noise in Ideal Operational Amplifiers
    EPL - Europhysics Letters, 1999
    Co-Authors: Jean-michel Courty, Francesca Grassia, Serge Reynaud
    Abstract:

    We consider a model of quantum measurement built on an Ideal Operational Amplifier operating in the limit of infinite gain, infinite input impedance and null output impedance and with a feddback loop. We evaluate the intensity and voltage noises which have to be added to the classical amplification equations in order to fulfill the requirements of quantum mechanics. We give a description of this measurement device as a quantum network scattering quantum fluctuations from input to output ports.

Francesca Grassia - One of the best experts on this subject based on the ideXlab platform.

  • Quantum noise in Ideal Operational Amplifiers
    EPL, 1999
    Co-Authors: Jean-michel Courty, Francesca Grassia, Serge Reynaud
    Abstract:

    We consider a model of quantum measurement built on an Ideal Operational Amplifier operating in the limit of infinite gain, infinite input impedance and null output impedance and with a feedback loop. We evaluate the intensity and voltage noises which have to be added to the classical amplification equations in order to fulfill the requirements of quantum mechanics. We give a description of this measurement device as a quantum network scattering quantum fluctuations from input to output ports.

  • Quantum noise in Ideal Operational Amplifiers
    EPL - Europhysics Letters, 1999
    Co-Authors: Jean-michel Courty, Francesca Grassia, Serge Reynaud
    Abstract:

    We consider a model of quantum measurement built on an Ideal Operational Amplifier operating in the limit of infinite gain, infinite input impedance and null output impedance and with a feddback loop. We evaluate the intensity and voltage noises which have to be added to the classical amplification equations in order to fulfill the requirements of quantum mechanics. We give a description of this measurement device as a quantum network scattering quantum fluctuations from input to output ports.

Kadlec Michal - One of the best experts on this subject based on the ideXlab platform.

  • Laboratory kit for demonstration of active low pass, high pass and band pass filter by Sallen-Key structure
    Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008
    Co-Authors: Kadlec Michal
    Abstract:

    The main aim of this work is to design electric circuit for realizing of low pass, high pass and band pass filter using Sallen – Key structure. It is active filter so this work pays attention to choose the suitable active element. I will analyze individual types of frequency filters, simulate designed structure and will choose suitable computing Amplifier for our structure. I will simulate every circuit with Ideal Operational Amplifier, with Operational Amplifier having real parameters and finally with our chosen Operational Amplifier. I will confront the difference of individual circuit, influence of real parameters of Amplifier for the general process of resultant filter modul characteristics. I closer take a look at the output resistance influence of Operational Amplifier for the modul characteristics of choosen circuit (low pass filter). This project also includes the summary and analyses of individual possibilities of the electronic control applied to active filter parameters. The part of the project is also detailed analyze and process of realization of the final connection of laboratory instrument

  • Laboratory kit for demonstration of active low pass, high pass and band pass filter by Sallen-Key structure
    Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008
    Co-Authors: Kadlec Michal
    Abstract:

    Hlavním cílem předkládané práce je navrhnout a realizovat zapojení, které umožní realizovat aktivní filtry typu dolní, horní a pásmová propust pomocí struktury Sallen – Key. Jelikož se jedná o aktivní filtr, zvýšenou pozornost budu věnovat volbě vhodného aktivního prvku. V práci podrobně rozebírám dělení a použití jednotlivých typů kmitočtových filtrů, provádím podrobný návrh hodnot použitých prvků a volbu vhodného operačního zesilovače pro naše zapojení. Znázorním simulaci každého zapojení ve variantě s ideálním operačním zesilovačem, reálnými parametry operačního zesilovače a konečně s námi zvoleným operačním zesilovačem. Na modulových charakteristikách potom budu sledovat rozdílnost jednotlivých zapojení a vliv reálných parametrů zesilovače na celkový průběh modulové charakteristiky výsledného filtru. Blíže se věnuji vlivu výstupního odporu operačního zesilovače na průběh modulové charakteristiky. Na jednom vybraném zapojení následně vlivy tohoto odporu znázorním. Projekt také obsahuje shrnutí a rozebrání jednotlivých možností elektronického řízení parametrů aktivního filtru. Součástí projektu je také detailní rozbor a postup realizace výsledného zapojení laboratorního přípravku.The main aim of this work is to design electric circuit for realizing of low pass, high pass and band pass filter using Sallen – Key structure. It is active filter so this work pays attention to choose the suitable active element. I will analyze individual types of frequency filters, simulate designed structure and will choose suitable computing Amplifier for our structure. I will simulate every circuit with Ideal Operational Amplifier, with Operational Amplifier having real parameters and finally with our chosen Operational Amplifier. I will confront the difference of individual circuit, influence of real parameters of Amplifier for the general process of resultant filter modul characteristics. I closer take a look at the output resistance influence of Operational Amplifier for the modul characteristics of choosen circuit (low pass filter). This project also includes the summary and analyses of individual possibilities of the electronic control applied to active filter parameters. The part of the project is also detailed analyze and process of realization of the final connection of laboratory instrument.

Reynaud Serge - One of the best experts on this subject based on the ideXlab platform.

  • Quantum noise in Ideal Operational Amplifiers
    'IOP Publishing', 1998
    Co-Authors: Courty Jean-michel, Grassia Francesca, Reynaud Serge
    Abstract:

    We consider a model of quantum measurement built on an Ideal Operational Amplifier operating in the limit of infinite gain, infinite input impedance and null output impedance and with a feddback loop. We evaluate the intensity and voltage noises which have to be added to the classical amplification equations in order to fulfill the requirements of quantum mechanics. We give a description of this measurement device as a quantum network scattering quantum fluctuations from input to output ports.Comment: 4 pages, 2 figures, RevTe