|
|
Saving power and area with multi-bit pulsed latches
Král, Vojtěch ; Horský, Pavel (referee) ; Dřínovský, Jiří (advisor)
Diplomová práce se zabývá typy výkonových ztrát v technologii CMOS a následně jejich řešením metodami nízké spotřeby, které lze použít v oblasti zákaznických integrovaných obvodů. Jednou z možných metod pro nízkou spotřebu výkonu je vícebitový pulzní klopný obvod, který lze použít jako náhradu za standardní vícebitový klopný obvod typu master-slave. Vícebitový pulzní klopný obvod se skládá ze dvou částí, pulzního generátoru a pulzního klopného obvodu. V diplomové práci jsou popsané topologie, které mohou být použité. Konečná topologie byla vybraná na základě nízké spotřeby a plochy. Z vybrané topologie je vytvořeno schéma vícebitového pulzního klopného obvodu, které je porovnáno se schématem vícebitového klopného obvodu. Následně jsou vytvořeny layouty potřebných vícebitových pulzních klopných obvodů a porovnány jsou se standardními layouty vícebitových klopných obvodů. V závěru práce jsou navrhnuté vícebitové pulzní klopné obvody odsimulovány v jednoduchém designu.
|
|
|
Apparatus for electrotherapy
Kopečný, Josef ; Kolář, Radim (referee) ; Chmelař, Milan (advisor)
In the beginning of this thesis are described principles of physiatric treatment. The electrotherapy is analysed in more detail. Firstly with respect to the conduction of current into the skin, secondly with respect to using of various kinds of currents, which are normally used for this electrotherapy. Also electrodes and conversion of current between electrode and the skin are mentioned. The last part of this thesis focused on the proposition and realization of simple apparatus for this electrotherapy.
|
|
|
Power source for pulse magnetron sputtering
Schulz, Jakub ; Magát, Martin (referee) ; Šteffan, Pavel (advisor)
The presented thesis deals with the design and assembly of the generator for pulse magnetron sputtering. The designed device is capable of generating two square wave signals via its counter-working outputs. Both signals have independently adjustable frequency, pulse count and duty ratio. Both signals originate from two frequency syntheses controlled by microcontroller PIC16F877A. All the settings are entered by four buttons and are shown on an alphanumeric display with 16x4 characters. The duty ratio is adjusted using a special module.
|
|
|
Saving area and power consumption in 65 nm digital standard cell library
Král, Vojtěch
This study aims to investigate multi-bit pulsed latches in comparison with multi-bit flip flops as one of the low-power solutions in 65 nm technology process. Topologies of pulse generators and multi-bit pulsed latches were investigated to find out which can be more suitable. The pulse generator was chosen because of its low power and a small area in comparison with other options. The pulse generator is made of a simple AND logical gate and a double-stacked inverter. The pulsed latch was also chosen because of its low power, small area, and reliability of the circuit. The chosen topology is modified PPCLA. Simulations of the chosen topology had shown that multi-bit flip flops could be replaced with more effective multi-bit pulsed latches.
|
|
|
SMV-2022-61: Development of advanced programmable acquisition system with pulse generator
Vondra, Vlastimil
Assessment of the equipment specification in terms of the equipment implementation possibilities using the contractor's instrumentation. Analysis of the requirements of the assignment and development of the generator solution methodology. Preparation of a proposal for implementation according to the desired characteristics. Manufacturing mechanical and electrical parts and purchasing the necessary components. Verification of theoretical initial requirements by practical measurements at a designated location. Assembling 1 piece of experimental equipment. Installation, calibration of equipment at the filling site. Operator training at the client's.
|
|
|
Saving power and area with multi-bit pulsed latches
Král, Vojtěch ; Horský, Pavel (referee) ; Dřínovský, Jiří (advisor)
Diplomová práce se zabývá typy výkonových ztrát v technologii CMOS a následně jejich řešením metodami nízké spotřeby, které lze použít v oblasti zákaznických integrovaných obvodů. Jednou z možných metod pro nízkou spotřebu výkonu je vícebitový pulzní klopný obvod, který lze použít jako náhradu za standardní vícebitový klopný obvod typu master-slave. Vícebitový pulzní klopný obvod se skládá ze dvou částí, pulzního generátoru a pulzního klopného obvodu. V diplomové práci jsou popsané topologie, které mohou být použité. Konečná topologie byla vybraná na základě nízké spotřeby a plochy. Z vybrané topologie je vytvořeno schéma vícebitového pulzního klopného obvodu, které je porovnáno se schématem vícebitového klopného obvodu. Následně jsou vytvořeny layouty potřebných vícebitových pulzních klopných obvodů a porovnány jsou se standardními layouty vícebitových klopných obvodů. V závěru práce jsou navrhnuté vícebitové pulzní klopné obvody odsimulovány v jednoduchém designu.
|
|
|
Design Of The Pulse Generator For Testing And Validating Partial Discharge Measuring Systems
Hejtmánek, Tomáš
This article deals with the design and implementation of a pulse generator serving as acalibration generator for setting up measuring systems for monitoring the activity of partial discharges(PD) in the high-voltage power transformers or gas insulated switchgears (GIS). After installingthe measuring device, it is advisable to test the entire measuring chain and, if necessary, setparameters that would affect the correct detection of PD signals. Calibration pulse generators areused for setting and validating measuring chain. These are usually used in systems that sense theelectromagnetic activity of PD. Correct and timely detection of PD can avert a transformer accidentand thus contribute to higher safety in power plants. The proposed generator should serve as theoutput part of a programmable generator, which did not reach sufficient parameters of output pulses.The goal was to achieve a rising time around 100 ps and an amplitude of more than 6 V usingmodern and very fast operational amplifiers and step recovery diodes as a sharpener of the inputpulse. The measurements show waveform of the output voltage pulse.
|
|
|
Pulse Generator for Φ-OTDR in VPI photonics
Čučka, Milan
The paper focuses on Φ–OTDR (Optical Time Domain Reflectometry) systems which need short time duration and high powered pulses for proper function, because the backscattered signal is weak for proper detection. The article includes a simulation of the signal generator for Φ–OTDR sensoric systems in simulation software. Designed generator allows to try pulses, with different time of duration, pulse repetition frequency and power. The article also includes scientific notation of backscattered signal and a short description of the used systems.
|
|
|
Apparatus for electrotherapy
Kopečný, Josef ; Kolář, Radim (referee) ; Chmelař, Milan (advisor)
In the beginning of this thesis are described principles of physiatric treatment. The electrotherapy is analysed in more detail. Firstly with respect to the conduction of current into the skin, secondly with respect to using of various kinds of currents, which are normally used for this electrotherapy. Also electrodes and conversion of current between electrode and the skin are mentioned. The last part of this thesis focused on the proposition and realization of simple apparatus for this electrotherapy.
|
|
|
Power source for pulse magnetron sputtering
Schulz, Jakub ; Magát, Martin (referee) ; Šteffan, Pavel (advisor)
The presented thesis deals with the design and assembly of the generator for pulse magnetron sputtering. The designed device is capable of generating two square wave signals via its counter-working outputs. Both signals have independently adjustable frequency, pulse count and duty ratio. Both signals originate from two frequency syntheses controlled by microcontroller PIC16F877A. All the settings are entered by four buttons and are shown on an alphanumeric display with 16x4 characters. The duty ratio is adjusted using a special module.
|
guest ::
