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Mixing board with class-AB output amplifier
Krolák, David ; Šotner, Roman (referee) ; Brančík, Lubomír (advisor)
Bachelor thesis deals with the type of mixer preamplifier with active tone control for each of four inputs. This preamplifier is used at dance parties, concerts and recording songs if it equipped with a line output for recording device. The thesis also includes design of power amplifier in class AB with output power 2 × 100 W at 8 nominal load, simulations and a summary of the results.
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Design of class AB stereo audio power amplifier
Podr, Michal ; Šotner, Roman (referee) ; Brančík, Lubomír (advisor)
This thesis describes the design of a complete amplifier operating in class AB. It contain two power amplifiers with working in the bridge mode correction amplifier with volume control, bass, treble, and also with the choice of loudness. Preamplifier with three different inputs and the choice between stereo and mono modes.
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Design of the Rail-to-Rail operational amplifier in CMOS
Cvešper, Stanislav ; Kledrowetz, Vilém (referee) ; Prokop, Roman (advisor)
This thesis deals with design of rail-to-rail class AB operational amplifier in CMOS technology I3T25. Starting with a short introduction to CMOS transistors, following with description of operational amplifier, structures of operational amplifier, its design and simulation in software Cadence, with added description of techniques for minimalizing input offset voltage. Main goal is to design a rail-to-rail input common mode range operational amplifier with minimal input offset voltage with layout included.
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Automotive audio amplifier and subwoofer
Kolka, René ; Šotner, Roman (referee) ; Dřínovský, Jiří (advisor)
This thesis deals with the project of two performance amplifiers for a subwoofer and for four basic car loud-speakers. The following part of the thesis is dealing with the power circuits of the amplifiers. The control of the amplifiers is realized by processor. The thesis is also dealing with the problems caused by sound system installation in a car, and concerns mainly with the boosters position and with producing high quality subwoofer and baffle-board.
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Design and construction of audio power amplifier
Růžička, Jaroslav ; Kratochvíl, Tomáš (referee) ; Brančík, Lubomír (advisor)
This bachelor’s thesis is concerned with amplifier classes, integration end-level, protective circuits and concrete concept of class AB power amplifier, including concept of preamplifier and power amplifier. Features of designed circuits were simulated in PSpice software. These individual concepts of modules are connected with DPS. This thesis contains results of measurement and photos of amplifier.
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Simulation and implementation of the audio power amplifier
Svadbík, Pavel ; Kratochvíl, Tomáš (referee) ; Šotner, Roman (advisor)
This work deals with simulation and analysis of audio power amplifiers of various concepts and classes. The theoretical part presents the basic necessary knowledge of electrical concepts and principles necessary for mastery of issues that this work deals. For each simulated circuit are described the basic operating principles and evaluated the results of the analysis. Based on the results of the analysis is chosen circuit, which is experimentally realized and measurement. In conclusion discusses the parameters obtained by simulations and practical measurements, and are fully assessed characteristics realized amplifier.
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Class AB audio amplifier for two satellites and subwoofer
Cupák, Jan ; Brančík, Lubomír (referee) ; Kratochvíl, Tomáš (advisor)
This bachelor’s thesis deals with design of AB class audio amplifiers. Further more it deals also with other functional blocks, e.g. preamplifier, tone equalizer and active crossover. Outcome of this work is a complete solution of the amplifier with it's simulation. In final solution is also included scheme of a high quality power supply unit, speaker protection and heat sinks for high performance transistors. In this project is also included a solution of task about optimal mechanical arrangement of the single parts in the case of this amplifier. This thesis contains results of measurement and photo document of functional prototype.
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Low-frequency Power Amplifiers
Kovář, Robert ; Vorel, Pavel (referee) ; Patočka, Miroslav (advisor)
The diploma thesis deals with the solution of output power amplifiers for home listening. There are mentioned basic terms and illustrated several well-known solutions of power amplifiers. Is described formation and possibilities to minimize transient distortion of output stage. For verification is implemented full-symmetrical output stage.
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Design and making of low-frequency power amplifier in class AB
Dušek, Martin ; Kratochvíl, Tomáš (referee) ; Brančík, Lubomír (advisor)
In this bachelor thesis I am occupied with low frequency amplifiers, theirs important parameters, classes and with integrations end-level. Next I am occupied with miscellaneous types of preamplifiers and additional circuits. There are simulated schemes of corrective preamplifier, protections scheme and high power amplifier in PSpice software in this thesis. These schemes and next additional modules are connected with DPS. This thesis contains result of measurement and photo functional sample.
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