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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 stereo audio power amplifier
Chmelík, Šimon ; Šotner, Roman (referee) ; Brančík, Lubomír (advisor)
This bachelor thesis deals with design of low-frequency power amplifier working in AB class, including correction preamplifier and a suitable power source. The amplifier is designed to be feasible from commonly available components. The result is the overall design of power amplifier with preamplifier and power supply and measuring their parameters.
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Audio amplifier working in class AB with 400W output power
Kopic, Jan ; Šotner, Roman (referee) ; Petržela, Jiří (advisor)
The content of the thesis is the theory related to low-frequency audio amplifiers that is summarized in a separate chapter. This section describes the division of these amplifiers according to various criteria, as well as their working classes and parameters that determine their behavior. In addition, this thesis contains a description of the principle of the function of the selected class AB amplifier, which is divided into individual functional blocks and completed by the addition of speaker protection circuit. Criteria of selection for important chosen components are mentioned in appropriate chapters and supplemented with data from components datasheets. The output results of the simulations are always commented and compared with the calculated values at the end of the relevant chapter. The attachment of the thesis contains PCB design for the device realization. The correct operation of build device has been verified and measured.
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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 of Differential Difference Amplifier in CMOS technology
Trojan, Vladimír ; Khateb, Fabian (referee) ; Kledrowetz, Vilém (advisor)
The bachelor's thesis deals with the design of differential difference amplifier (DDA) in technology TSMC 0,18 with maximum input and output common mode range, minimum power dissipation and area on chip. The thesis describes the basics of CMOS technology, commonly used structures of analog integrated circuits and operational amplifiers. Main focus of the thesis is design of circuit of DDA. Designing and simulations of DDA parameters were made in program Cadence Virtuoso and ADE Assembler simulation environment. Layout of DDA was designed in Layout XL environment.
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Design of differential difference amplifier (DDA) for biological signals processing
Grochal, Peter ; Šteffan, Pavel (referee) ; Khateb, Fabian (advisor)
The work deals with the analog design of low-voltage and low-power differential difference amplifier DDA with adaptive differential input stage, second stage class AB, improved by a self – cascode to achieve higher gain and slew rate. Conventional and unconventional techniques, and methods for low-voltage and low-power design are presented. The finished design of the differential difference amplifier DDA with the analyzed results is presented. Design of a Butterwortho low-pass filter of the sixth order based on DDA with Sallen Key topology and design of a multifunctional ARC filter based on DDA.
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Audio amplifier working in class AB with 400W output power
Kopic, Jan ; Šotner, Roman (referee) ; Petržela, Jiří (advisor)
The content of the thesis is the theory related to low-frequency audio amplifiers that is summarized in a separate chapter. This section describes the division of these amplifiers according to various criteria, as well as their working classes and parameters that determine their behavior. In addition, this thesis contains a description of the principle of the function of the selected class AB amplifier, which is divided into individual functional blocks and completed by the addition of speaker protection circuit. Criteria of selection for important chosen components are mentioned in appropriate chapters and supplemented with data from components datasheets. The output results of the simulations are always commented and compared with the calculated values at the end of the relevant chapter. The attachment of the thesis contains PCB design for the device realization. The correct operation of build device has been verified and measured.
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Design of class AB stereo audio power amplifier
Zatloukal, Tomáš ; Polák, Ladislav (referee) ; Brančík, Lubomír (advisor)
The following work deals with design of class AB low-frequency amplifier, which is appropriately supplemented by correction Pre-amplifier and inrush protection circuit. The original schematic from prof. Leach was edited to fulfill task and to be easily completed from discrete components. The result of this work is the final design of power amplifier and correction pre-amplifier, protection circuit for speakers and power supply. As a next part, the design of printed circuit boards will be described together with assembling and mounting of boards in a construction box. Power amplifier will be verified by simulation and hardware measurements.
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Class-AB stereo audio power amplifier
Chmelík, Šimon ; Šotner, Roman (referee) ; Brančík, Lubomír (advisor)
This bachelor thesis deals with design of low-frequency power amplifier working in AB class, including correction preamplifier and a suitable power source. The amplifier is designed to be feasible from commonly available components. The result is the overall design of power amplifier with preamplifier and power supply and measuring their parameters.
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