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Dissertations / Theses on the topic 'Digital state controller'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 May 2022

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1

Гнип, Владислав Віталійович. "Підвищення точності керування багатовимірними системами". Master's thesis, КПІ ім. Ігоря Сікорського, 2021. https://ela.kpi.ua/handle/123456789/41091.

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Магістерська дисертація містить описання вдосконаленого методу синтезу регулятора Р.Ізермана. Представлено, класифікації цифрових багатовимірних систем, математичні моделі та приклади використання методів-аналогів, виведення математичної моделі вдосконаленого методу, експериментальні дослідження вдосконаленого методу та його використання для підвищення точності систем керування з неквадратними матрицями.<br>The master's dissertation contains a description of the improved method of synthesis of the regulator of R. Izerman. Presented classifications of digital multidimensional systems, mathema
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2

Kocak, Elif. "Control Law Partitioning Applied To Beam And Ball System." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609564/index.pdf.

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In this thesis different control methods are applied to the beam and ball system. Test setup for the previous thesis is handled, circuit assemblies and hardware redesigned. As the system is controlled by the control law partitioning method by a computer, discrete time system model is created. The controllability and the observability of the system are analyzed and a nonlinear controller by using control law partitioning in other words computed torque is designed. State feedback control algorithm previously designed is repeated. In case of calculating the non measurable state variables two diff
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3

Britto, Jonas Reginaldo de. "Análise, projeto e implementação de conversores CC-CC com ampla faixa de conversão aplicados em iluminação de estado sólido." Universidade Federal de Uberlândia, 2009. https://repositorio.ufu.br/handle/123456789/14265.

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This work consists of the study, design and implementation of DC-DC converters, used in lighting systems based on light emitting diodes (LEDs). Can be powered by an universal AC voltage source or battery, and the current in the LEDs is controlled digitally. The main objective is to present a proposal of new step-up/down converters topologies with full conversion much higher than that of conventional converters. So, is initially presented an overview of solid-state lighting (SSL). Following is presented the study on the dynamic behavior of converters based on modeling by the method of varying s
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4

Oliveira, Fernando Henrique de. "Controle discreto de fonte modular de corrente aplicada a magnetos de aceleradores de partículas." Universidade Federal de Juiz de Fora (UFJF), 2018. https://repositorio.ufjf.br/jspui/handle/ufjf/6814.

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Submitted by Geandra Rodrigues (geandrar@gmail.com) on 2018-05-23T18:23:25Z No. of bitstreams: 1 fernandohenriquedeoliveira.pdf: 7733433 bytes, checksum: ed0bfbea1ebdeec7443503ad20027a67 (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2018-05-24T17:33:19Z (GMT) No. of bitstreams: 1 fernandohenriquedeoliveira.pdf: 7733433 bytes, checksum: ed0bfbea1ebdeec7443503ad20027a67 (MD5)<br>Made available in DSpace on 2018-05-24T17:33:19Z (GMT). No. of bitstreams: 1 fernandohenriquedeoliveira.pdf: 7733433 bytes, checksum: ed0bfbea1ebdeec7443503ad20027a67 (MD5
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5

Qi, Lin. "Bioinspired Smart Surfaces with Switchable Wetting Properties for Droplet Manipulation and Controlled Drug Release." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555584165880048.

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6

Zhang, Junhong. "Bidirectional DC-DC Power Converter Design Optimization, Modeling and Control." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/26126.

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In order to increase the power density, the discontinuous conducting mode (DCM) and small inductance is adopted for high power bidirectional dc-dc converter. The DCM related current ripple is minimized with multiphase interleaved operation. The turn-off loss caused by the DCM induced high peak current is reduced by snubber capacitor. The energy stored in the capacitor needs to be discharged before device is turned on. A complementary gating signal control scheme is employed to turn on the non-active switch helping discharge the capacitor and diverting the current into the anti-paralleled diode
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7

Sattouf, Mousa. "Systém snímání dat a ovládání vodní elektrárny prostřednictvím internetové techniky." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-233685.

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Vodní energie se nyní stala nejlepším zdrojem elektrické energie na zemi. Vyrábí se pomocí energie poskytované pohybem nebo pádem vody. Historie dokazuje, že náklady na tuto elektrickou energii zůstávají konstantní v průběhu celého roku. Vzhledem k mnoha výhodám, většina zemí nyní využívá vodní energie jako hlavní zdroj pro výrobu elektrické energie.Nejdůležitější výhodou je, že vodní energie je zelená energie, což znamená, že žádné vzdušné nebo vodní znečišťující látky nejsou vyráběny, také žádné skleníkové plyny jako oxid uhličitý nejsou vyráběny, což činí tento zdroj energie šetrný k životn
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8

Sedlář, Petr. "Digitálně řízený rezistor." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218032.

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This master´s thesis deals with the design of the control circuits for digital potentiometers and their application in analog systems. Digital potentiometers are three-terminal resistors with an adjustable center connection. The digital potentiomneters enable to drive logic gates, LED drivers, LCD drivers, analog switches etc. Controlling of these mentioned devices is possible by the I2C 2- wire serial bus (invented by Philips). The digital potentiometers are used to control of the primary parameters like cut-off frequency and quality factor in the state variable filter and cut-off frequency i
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9

Yang, Zhaoning. "Digital controller design for Cascaded-Multilevel-Converter based STATCOM systems." 2006. http://www.lib.ncsu.edu/theses/available/etd-11122006-000304/unrestricted/etd.pdf.

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10

Mundkur, Sameer Shailesh. "Design and implementation of a digital controller for high power converters." 2008. http://www.lib.ncsu.edu/theses/available/etd-11062008-124151/unrestricted/etd.pdf.

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11

Ng, Kendy Chun-Wa. "A Digitally Controlled Dual Output Stage Buck Converter with Transient Suppression." Thesis, 2009. http://hdl.handle.net/1807/18935.

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To support the increasingly demanding requirements for power conversion units, a digitally controlled dual output stage buck converter is designed. The system consists of a dual output stage, which includes an auxiliary buck output stage connected in parallel with a main output stage. The auxiliary output stage is only active during load transient to suppress the output voltage variation. A digital controller is designed to control both stages with a linear/nonlinear control scheme. Nonlinear control is applied during load transient based on the capacitor charge balance principle; whereas
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12

Zhu, Ning. "Modeling, design and simulation of low cost digitally controlled dc/dc converter." 2007. http://www.lib.ncsu.edu/theses/available/etd-03232007-061948/unrestricted/etd.pdf.

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13

Chien, Cheng-hsien, and 簡政賢. "Design and Implementation of a Digitally-Controlled Single-Stage Flyback Converter with Power Factor Correction." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/11872421178394632794.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>100<br>High-brightness LEDs are energy-saving and cost-effective choices that enable the next generation of lighting applications. Typically, an LED driver with active PFC is implemented with two-stage topology. The first stage can achieve a near unity power factor and a low THD at universal input voltage range, while the second stage is used for the dc/dc conversion. However, two-stage topology has two independent feedback controls and a high component count, leading to an increased cost and size. In low-power lighting applications, where cost is the dominant issue,
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14

Kuo, Huai-tien, and 郭懷天. "Design and Implementation of a Fully Digitally Controlled Single-stage Power Factor Corrected Full-bridge Converter." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/22994534646257967182.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>95<br>The thesis proposes the design and implementation of a fully digitally controlled full-bridge converter with power factor correction. The converter includes two major parts: a power factor correction circuit and a full bridge DC/DC converter. The zero switching technique is used to reduce the switching loss of the DC/DC converter. In addition, a single-stage power factor correction circuit is implemented to improve the power factor in the input AC source. The detailed discussion and analysis are included. An adjustable dead-time control method is proposed here
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15

Elshazly, Amr. "Performance enhancement techniques for low power digital phase locked loops." Thesis, 2012. http://hdl.handle.net/1957/31116.

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Desire for low-power, high performance computing has been at core of the symbiotic union between digital circuits and CMOS scaling. While digital circuit performance improves with device scaling, analog circuits have not gained these benefits. As a result, it has become necessary to leverage increased digital circuit performance to mitigate analog circuit deficiencies in nanometer scale CMOS in order to realize world class analog solutions. In this thesis, both circuit and system enhancement techniques to improve performance of clock generators are discussed. The following techniques were deve
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