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Design of low-voltage operational amplifier
Sysel, Jan ; Šteffan, Pavel (referee) ; Khateb, Fabian (advisor)
This work deals with the design of operational amplifier with extremely low supply voltage and low power consumption. In the theoretical part is presented theory dealing with the structure and design of operational amplifier. In the following part are desribed design methods suitable for realization of low-voltage circuits. In the next part were designed two operational amplifiers using low-voltage design methods. Properties of these operational amplifiers were then tested by simulations.
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Design of a SAR AD converter with switched capacitors
Sysel, Jan ; Kledrowetz, Vilém (referee) ; Prokop, Roman (advisor)
This work deals with the design of analog to digital converter with a successive approximation register for automotive industry with the range of operating temperatures from -40 °C to 175 °C and with the use of DAC with switched capacitors between interconnect metal tracks in an integrated circuit to minimize converter area. Theoretical part deals with the basic theory of analog to digital converters, principle of converter with a successive approximation register with the utilization of capacitive DAC. Then with the design of capacitors for the DAC in an integrated circuit made of metal layers and vias and their layout to minimize parasitic capacities. In the practical part is made the theoretical design of the converter on block level. Then is done the design of a capacitor for this DAC and layout of the whole DAC is made. On the transistor level are designed and verified blocks required for realization of this converter: circuit of voltage follower, operational amplifier, comparator and switches. Inside the converter the self-test circuit is implemented for measurement of its own nonlinearity. In the work the functionality of the converter is verified as a whole.
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Design of low-voltage operational amplifier
Sysel, Jan ; Šteffan, Pavel (referee) ; Khateb, Fabian (advisor)
This work deals with the design of operational amplifier with extremely low supply voltage and low power consumption. In the theoretical part is presented theory dealing with the structure and design of operational amplifier. In the following part are desribed design methods suitable for realization of low-voltage circuits. In the next part were designed two operational amplifiers using low-voltage design methods. Properties of these operational amplifiers were then tested by simulations.
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Posouzení vhodnosti použití harvestorové technologie lesní těžby na ŠLP Křtiny
Sysel, Jan
This thesis is focused on assessing the suitability of using harvesting technology in conditions of Training Forest Enterprise Masaryk Forest Křtiny (TFE). The work is related to the overall characteristics of harvester technologies in terms of technical solutions, but also to establish criteria of suitable natural conditions for the most thrifty deployment. The findings obtained in this investigation are applied to the forests of the property to discover the potential using options of harvester technologies. Criteria to determine the suitability of the forest stand were: type of terrain, edaphic category, minimum representation of conifers and age of stand. For forest stands there are assigned the appropriate types of harvester chassis and harvester heads which are suitable for their cutting. In the thesis there are further processed optimal harvester nodes, a comparing of the time consumption to processing of the volume of logging by classical logging technologies and harvester technologies. Based on the findings there was elaborated a recommendation for operating practices.
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