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Fully-differential current mode frequency filters
Kubík, Milan ; Koton, Jaroslav (referee) ; Jeřábek, Jan (advisor)
The bachelor thesis focuses on design of fully-differential frequency filters in current mode. First part informs about problems concerning frequency filters and creating differential structures in current mode. Second part deals with used active components - Digitally Controlled Current Amplifier (DCCA) and Multiple Output Current Follower (MO-CF). Key point is own design of differential filters, which is divided into three parts. In the first part of design results there are filters obtained with help of models from FilterPro software. There are presented circuit structures implementing low pass, high pass and band pass frequency filters. At the next part two filters derived from autonomous circuits. These circuits are working as low pass and high pass frequency filters. In the last part are designed two types of integrator type components – loss integrator and lossless integrator. These circuits were used to realize cascade connection achieving three filtering function – band pass 1, band pass 2 and low pass. Final part summarises the thesis and features of designed structures.
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Differential frequency filters with modern active elements
Kubík, Milan ; Vrba, Kamil (referee) ; Jeřábek, Jan (advisor)
The master thesis focuses on design of fully-differential frequency filters with modern active components in current mode. First part informs about problems concerning analogue frequency filters and creating differential structures. Second part deals with methods of create filters and used active components - DACA (Digital Adjustable Current Amplifier) and MO-CF (Multiple Output Current Follower). Own design of differential filters is divided on two parts. In the first part of design results there are filters created with synthetic higher-order elements. There are presented circuit structures implementing the third order low pass filter and high pass filter. In the second part are designed filters with signal flow graphs. The first circuit implementing low pass, high pass, band pass, band rejection and all-pass filter. The second circuit is with help of the same set of current amplification by DACA components tuning of the natural frequency. For this circuit was make sensitivity analysis. In the final part is practical implementation of the differential frequency filter for tuning of the natural frequency and summarises the thesis.
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Short Non-Professional Film as a Genre of Contemporary Folklore. Options of Research on the Web in Anthropological and Sociological Perspective
Kubík, Milan ; Cirklová, Jitka (advisor) ; Hrůzová, Andrea (referee)
This exploratory study aims to determine short non-profesional film as a relevant object of study for anthropology and sociology. Firstly, short non-profesional film is defined as a product of popular culture, but it shares many characteristics with the commercial film. Subsequently, short non-profesional film is described as a distinctive genre of contemporary folklore. This definition will be based on its comparison with the characteristics of contemporary legends. Subsequently, the study shows, which symbolic functions could short non-pofesional film hold in society and thus help to set up its symbolic order. Film's main function is to bring limit experiences into everyday context of the viewer. In this way, the watching of short non-professional film becomes a rite of passage that gives to the audience the opportunity to experience the state of liminality - violation of order - through suspense. This tension, however, the viewer experiences in a safe symbolic world of the film itself. In the final catharsis, which is enhanced by an elliptical plot, then it release the tension and restore social order. This study is a combination of quantitative research and ethnography in cyberspace. The study brings the subjectivity of the researcher and also his essential reflexivity into the center of text...
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Short Non-Professional Film as a Genre of Contemporary Folklore. Options of Research on the Web in Anthropological and Sociological Perspective
Kubík, Milan ; Cirklová, Jitka (advisor) ; Hrůzová, Andrea (referee)
This exploratory study aims to determine short non-profesional film as a relevant object of study for anthropology and sociology. Firstly, short non-profesional film is defined as a product of popular culture, but it shares many characteristics with the commercial film. Subsequently, short non-profesional film is described as a distinctive genre of contemporary folklore. This definition will be based on its comparison with the characteristics of contemporary legends. Subsequently, the study shows, which symbolic functions could short non-pofesional film hold in society and thus help to set up its symbolic order. Film's main function is to bring limit experiences into everyday context of the viewer. In this way, the watching of short non-professional film becomes a rite of passage that gives to the audience the opportunity to experience the state of liminality - violation of order - through suspense. This tension, however, the viewer experiences in a safe symbolic world of the film itself. In the final catharsis, which is enhanced by an elliptical plot, then it release the tension and restore social order. This study is a combination of quantitative research and ethnography in cyberspace. The study brings the subjectivity of the researcher and also his essential reflexivity into the center of text...
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Fully-differential current mode frequency filters
Kubík, Milan ; Koton, Jaroslav (referee) ; Jeřábek, Jan (advisor)
The bachelor thesis focuses on design of fully-differential frequency filters in current mode. First part informs about problems concerning frequency filters and creating differential structures in current mode. Second part deals with used active components - Digitally Controlled Current Amplifier (DCCA) and Multiple Output Current Follower (MO-CF). Key point is own design of differential filters, which is divided into three parts. In the first part of design results there are filters obtained with help of models from FilterPro software. There are presented circuit structures implementing low pass, high pass and band pass frequency filters. At the next part two filters derived from autonomous circuits. These circuits are working as low pass and high pass frequency filters. In the last part are designed two types of integrator type components – loss integrator and lossless integrator. These circuits were used to realize cascade connection achieving three filtering function – band pass 1, band pass 2 and low pass. Final part summarises the thesis and features of designed structures.
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Differential frequency filters with modern active elements
Kubík, Milan ; Vrba, Kamil (referee) ; Jeřábek, Jan (advisor)
The master thesis focuses on design of fully-differential frequency filters with modern active components in current mode. First part informs about problems concerning analogue frequency filters and creating differential structures. Second part deals with methods of create filters and used active components - DACA (Digital Adjustable Current Amplifier) and MO-CF (Multiple Output Current Follower). Own design of differential filters is divided on two parts. In the first part of design results there are filters created with synthetic higher-order elements. There are presented circuit structures implementing the third order low pass filter and high pass filter. In the second part are designed filters with signal flow graphs. The first circuit implementing low pass, high pass, band pass, band rejection and all-pass filter. The second circuit is with help of the same set of current amplification by DACA components tuning of the natural frequency. For this circuit was make sensitivity analysis. In the final part is practical implementation of the differential frequency filter for tuning of the natural frequency and summarises the thesis.
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