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Influence of Impedance of Input and Output Circuits and Connecting Cables on Audio Signal Transmission
Ďurka, Adam ; Hanák, Pavel (referee) ; Kubánek, David (advisor)
This bachelor thesis deals with the influence of parasitic properties of audio cables as well as input and output impedances of various audio devices for signal transmission between them and also its linear distortion. Using alternative wiring diagrams of these devices, simulations of transmission and linear distortion are performed, and then laboratory jigs for measuring these parameters are designed and implemented. In the next part of the work, the measurements of the transfer between the jigs are performed using the Bode 100 circuit analyzer and the resulting characteristics are compared with the simulated values.
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Measurement of Transfer and Immittance Characteristics of Active Circuit Elements
Marek, Pavel ; Vrba, Kamil (referee) ; Kubánek, David (advisor)
This diploma work deals with active circuit elements and proposals of methods for measuring of some parameters of these elements. In the opening part the work deals with general classification of elements used in electronic circuits, ideal and real current sources and power supplies. Further there are stated basic parameters and characteristics presented by producers in a catalogue sheet for active elements MAX435, OPA660, AD844 and MAA741 element which already belongs to the history of IC. Main attention is paid to active circuit elements with current sources driven by CCCS (Current Controlled Current Source) and AD844 (high speed monolithic operational amplifier). In the work there is described a method for determining of selected parameters of active elements with CCCS. Examined parameters were frequency characteristics of current transfer, input impedance and output impedance. The proposed method was verified by a computer simulation on above mentioned active elements by means of PSpice software. Findings along with the description are summarized at the end of the work. In the closing part of the work there is undertaken a real measure of AD844 element based on the proposed method and the findings are compared with particular simulations. However, at first a flat connection board was made by means of EAGLE software and then the measure was performed on it.
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Influence of Impedance of Input and Output Circuits and Connecting Cables on Audio Signal Transmission
Ďurka, Adam ; Hanák, Pavel (referee) ; Kubánek, David (advisor)
This bachelor thesis deals with the influence of parasitic properties of audio cables as well as input and output impedances of various audio devices for signal transmission between them and also its linear distortion. Using alternative wiring diagrams of these devices, simulations of transmission and linear distortion are performed, and then laboratory jigs for measuring these parameters are designed and implemented. In the next part of the work, the measurements of the transfer between the jigs are performed using the Bode 100 circuit analyzer and the resulting characteristics are compared with the simulated values.
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Measurement of Transfer and Immittance Characteristics of Active Circuit Elements
Marek, Pavel ; Vrba, Kamil (referee) ; Kubánek, David (advisor)
This diploma work deals with active circuit elements and proposals of methods for measuring of some parameters of these elements. In the opening part the work deals with general classification of elements used in electronic circuits, ideal and real current sources and power supplies. Further there are stated basic parameters and characteristics presented by producers in a catalogue sheet for active elements MAX435, OPA660, AD844 and MAA741 element which already belongs to the history of IC. Main attention is paid to active circuit elements with current sources driven by CCCS (Current Controlled Current Source) and AD844 (high speed monolithic operational amplifier). In the work there is described a method for determining of selected parameters of active elements with CCCS. Examined parameters were frequency characteristics of current transfer, input impedance and output impedance. The proposed method was verified by a computer simulation on above mentioned active elements by means of PSpice software. Findings along with the description are summarized at the end of the work. In the closing part of the work there is undertaken a real measure of AD844 element based on the proposed method and the findings are compared with particular simulations. However, at first a flat connection board was made by means of EAGLE software and then the measure was performed on it.
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