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Analog and switching audio amplifier design and comparison
 Leikep, Filip ; Roubal, Zdeněk (referee) ; Steinbauer, Miloslav (advisor)
The goal of this Bachelor thesis was to design and manufacture analogue audio-frequency amplifier working in class AB and switching amplifier in class D and measure differences between them. Analogue amplifier is designed using discrete components, simulations were done in Micro-Cap. Class D amplifier will be implemented using an integrated circuit. Further in the thesis an output USB sound card is designed. It is compatible with PC and mobile phone. Audio outputs are galvanically insulated from USB to prevent the formation of a ground loop. Soundcard has two line outputs and amplifiers for two pairs of headphones. It was also measured and compared with soundcard integrated in computer. Class AB amplifier together with soundcard were built into the aluminium box.
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