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Active filters with resonant circuits for correction of loudspekaker system frequency response
Karelin, Iurii ; Hanák, Pavel (referee) ; Balík, Miroslav (advisor)
The bachelor thesis deals with the synthesis of active frequency filters, that are designed for the correction of frequency response of loudspeaker systems for the educational purposes in laboratory. The aim of the thesis is to explore various solutions with different degrees of parameter tunability and to implement selected solutions in the form of interchangeable modules for the modular system mAPC-x2. Two single-unit modules implementing a set of non-parametric filters with switchable center frequency and utilizing synthetic inductors, and one fully parametric dual module utilizing the KHN biquad topology with the capability of independent parameter regulation, were designed and manufactured. Those filters were tested, fine-tuned, and integrated into the existing laboratory assignment of the BPC-REP subject.
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ARC filters with modern active elements
Sedláček, Petr ; Murina, Milan (referee) ; Sedláček, Jiří (advisor)
The aim of this project is to compare the characteristics of low pass and high pass filters designed by various methods of synthesis. Firstly, the attributes and characteristics of filters and realisations of higher order filters using normed low pass filter and approximation of gain-magnitude frequency response are described and then used in application. The circuits that substitute coils directly or undirectly using the Bruton transform are discussed next. The practical part of project concerns of design of high pass and low pass itself, using two methods of synthesis. Proper real operational amplifier has to be choose for used frequency. In the final part of work the designed circuits were realized and their characteristics were measured and examined.
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Big Muff Type Distortion Guitar Effects
Beránková, Tereza ; Balík, Miroslav (referee) ; Kubánek, David (advisor)
Presented thesis is focused on construction and functionality of distortion effects and equalizers. It investigates the possibility of their usage in guitar distortion effect called Big Muff which consist of several blocks. One of them is tone control and this thesis intention is to implement equalizer instead. Part of this thesis is also creation of a laboratory task focused on measuring and understanding to this guitar effect
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ARC filters with modern active elements
Sedláček, Petr ; Murina, Milan (referee) ; Sedláček, Jiří (advisor)
The aim of this project is to compare the characteristics of low pass and high pass filters designed by various methods of synthesis. Firstly, the attributes and characteristics of filters and realisations of higher order filters using normed low pass filter and approximation of gain-magnitude frequency response are described and then used in application. The circuits that substitute coils directly or undirectly using the Bruton transform are discussed next. The practical part of project concerns of design of high pass and low pass itself, using two methods of synthesis. Proper real operational amplifier has to be choose for used frequency. In the final part of work the designed circuits were realized and their characteristics were measured and examined.
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