National Repository of Grey Literature 56 records found  beginprevious21 - 30nextend  jump to record: Search took 0.01 seconds. 
System level analysis of thermal properties of integrated circuits
Vaněk, Martin ; Jirák, Josef (referee) ; Frk, Martin (advisor)
Hlavním cílem této práce je shrnout základní poznatky o tématech spojených s teplem, se zaměřením na aplikace v elektrotechnice, a provést měření tepelného odporu pouzder integrovaných obvodů. První část je praktická a zabývá se teorií přenosu tepla, tepelnými vlastnostmi materiálů a metodologií JEDEC pro měření tepelných vlastností pouzder integrovaných obvodů. Druhá část se skládá ze sestrojení teplotní komory s přirozeným prouděním, návrhu testovacích desek plošných spojů a tepelných měření. Na závěr je shrnuta metodologie pro měření tepelného odporu čip-okolí spolu s uvedením praktických poznatků z předchozích měření. Tato práce může sloužit jako základ pro další vyhodnocování tepelných vlastností integrovaných obvodů a pro ověřování přesnosti tepelných simulací. Také může pomoci při vyhodnocování tepelné vodivosti desek plošných spojů.
Application of Advanced Electronic Packaging Technology
Zlámal, Jiří ; Kuchta, Radek (referee) ; Szendiuch, Ivan (advisor)
This bachelor's thesis sums up gained knowledge of current trends in packaging. First part focuses on various types of electrical packages and their functions while second part describes the process of designing an electrical package.
Active electrical filters based on switched-capacitor circuits
Třeček, Stanislav ; Dostál, Tomáš (referee) ; Brančík, Lubomír (advisor)
This thesis deals with concept of universal frequency filter by application of a switched-capacitor functional block. The concept is based on the theory of switched-capacitor circuits and the theory of a design of classical frequency filters. The printed circuit board was designed based on the filter connection developed by using a software Eagle. The filter was implemented as a laboratory product. This product has been revitalized and the frequency response of all types of filters has been measured. The measured parameters were compared with the parameters set out in the technical documentation of functional block.
Membraneless speaker
Kovář, Josef ; Šteffan, Pavel (referee) ; Pavlík, Michal (advisor)
The bachelor thesis consists of theoretic basics and describes the design and construction of one-channel membraneless speaker. Absence of mechanical components gives the membraneless speaker no frequency limitation. The design consists of power source, control electronics, which modulates the signal, convertor and output transformer. The power source is realized by transformer, which lowers the voltage and stabilizators. Modulation is provided by integrated circuit TL 594, its duty is adjusted by potentiometer P1 and frequency by potentiometer P2. Power conversion provides dual forward converter. As a output transformer was used transformer from color television.
Experimental electromagnetic acceleration device with more stages
Kovařík, Martin ; Červinka, Dalibor (referee) ; Martiš, Jan (advisor)
This master thesis deals with design and realization of multistage electromagnetic accelerating device (gun) and possibilities to increase its effectivity. This work contains a simulation of a magnetic circuit and designs of each components, inclusive of control circuits. Reached effectivity will be measured by appropriate methods.
Plasma speaker - audio modulated electric arc
Klein, Ondřej ; Červinka, Dalibor (referee) ; Martiš, Jan (advisor)
The bachelor thesis deals with design and realization of electric arc modulated by audio signal. It is also known as plasma speaker. Absence of any mechanical components gives membranless speaker no frequency limitation. The design consist of single circuits as power sources for power and control section, control electronics, which modulates the signal, and power section, which reproduce signal in form of sound.
Optimization of fabrication technology for ceramics packages
Pavlas, Ondřej ; Szendiuch, Ivan (referee) ; Skácel, Josef (advisor)
This bachelor thesis „Optimalization of fabrication technology for ceramics packals“ tackles the issues of ceramic packaging technology for microelectronics applications. This thesis deals with experimental production of ceramic packages from milling to sintering and the dispense printing with a straight capillary a tan angle 45°
Design of Digital Circuits at Transistor Level
Kešner, Filip ; Šimek, Václav (referee) ; Vašíček, Zdeněk (advisor)
This work aims to design process of integrated circuits on the transistor level, specially using evolutionary algorithm. For this purpose it is necessary to choose reasonable level of abstraction during simulation, which is used for evaluation candidate solutions by fitness function. This simulation has to be fast enough to evaluate thousands of candidate solutions within seconds. This work discusses already used techniques for transistor level circuit design and it chooses useful parts for new design of faster and more reliable automated design process, which would be able to design complex logic circuits. The thesis also discusses implementation of this system and used approach with regard to encountered problems in transistor-level circuit design and optimization by evolution.
Study of Inserting Hardware Trojans into Processors
Šviková, Johana ; Šimek, Václav (referee) ; Růžička, Richard (advisor)
This bachelor's thesis focuses on a specific aspect of cybersecurity known as hardware trojans, which are insidious attacks integrated directly into electronic components. The work begins with an analysis of the architecture and function of hardware trojans, examining their various types and classifications, and exploring methods for their detection and prevention. Furthermore, the thesis investigates how these attacks can impact compromised devices and how they can pose serious security risks. This thesis contains a design and implementation of a Trojan horse for a simple processor.
Design of a wireless communication interface with a PC for an emulation platform for modeling integrated circuits
Benc, Marek ; Janůš, Tomáš (referee) ; Šteffan, Pavel (advisor)
In the design center of Onsemi in Rožnov pod Radhoštěm, they use an emulation platform based around an FPGA for verification and debugging tasks for certain integrated circuits, and it's equipped with an interface that models an IC's configuration fuses with physical switches. For ICs with large fuse counts, working with this interface is tedious and error-prone, which has lead to this thesis investigating the possibilities for creating a wireless configuration interface that would be controlled by a PC.

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