National Repository of Grey Literature 13 records found  previous11 - 13  jump to record: Search took 0.00 seconds. 
Active Filters and their Transformation to Differential Structures
Bečková, Zuzana ; Herencsár, Norbert (referee) ; Vrba, Kamil (advisor)
Bachelor thesis is considered with transformation of single--ended frequency filters to fully--differential structures. Theoretical part contains a brief introduction to frequency filters and short summary of important features of signal flow graphs. Active elements, which are used in designed filters, are shown in the third chapter. Practical part of the thesis shows five single-ended filters (one already published, four newly designed) and their transformation to fully-differential structures. Results of simulations in programms OrCAD and SNAP are shown.
Design of an AD converter for sensor applications
Bečková, Zuzana ; Kubánek, David (referee) ; Jeřábek, Jan (advisor)
Diplomová práce obsahuje stručný teoretický základ pro designéra/ku A/D převodníku v technologii CMOS a přehled architektur A/D převodníků používaných v automobilovém průmyslu. Volba vhodné architektury pro konkrétní aplikaci byla zásadním úkolem zpra- covaným v semestrálním projektu předcházejícím tuto práci a je rovněž součástí této práce. Analýza v Matlabu, ze které by mělo vyplynout, je-li třeba zahrnout do architek- tury podblok Sample and Hold, je také součástí práce. Klíčovou částí práce je dokumen- tace návrhu jednotlivých podbloků A/D převodníku – operačního zesilovače, kompará- toru a R-2R D/A převodníku – a ověření jejich funkčnosti. V závěru práce je ověřena funkčnost A/D převodníku jako celku.
Collective buying like a modern marketing tool
Halásová, Lenka ; Zamazalová, Marcela (advisor) ; Bečková, Zuzana (referee)
This thesis deals with a new trend and a marketing tool -- collective buying. The aim of the work is to describe this trend from two different perspectives and to provide a short-term forecast. In the theoretical sections, we give overview of the history of collective buying, basic terms from the field, and the current situation in the Czech Republic and worldwide. We continue with sections describing the operations of a specific company from the field, BonyBony, which entered the market in September 2010. Author of this thesis has been employed in the company since its founding. In these sections we describe basic operation of the company, marketing tools used and advantages over the competition. The future of companies dealing with collective buying is uncertain; many of them are in red numbers. The last part of this work therefore tries to project the short-term forecast for this company using expert view based on the data acquired from a survey.

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