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Dissertations / Theses on the topic 'Discontinuous conduction mode (DCM)'

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1

Walczak, Marcin. "Modeling and studies of chosen DC/DC converters working in discontinuous conduction mode (DCM) : PhD thesis summary." Rozprawa doktorska, [s.n.], 2018. http://dlibra.tu.koszalin.pl/Content/1036.

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2

Taylor, Robert James. "Optimization of a discontinuous conduction mode flyback for acoustical energy harvesting." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0006984.

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3

Carlton, Dan. "Low harmonic content three-phase-to-DC-conversion using AC-side switches and discontinuous conduction mode." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0032/NQ38862.pdf.

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4

Lee, Moonhyun. "Digital-Based Zero-Current Switching (ZCS) Control Schemes for Three-Level Boost Power-Factor Correction (PFC) Converter." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/99694.

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With the increasing demands on electronic loads (e.g. desktop, laptop, monitor, LED lighting and server) in modern technology-driven lives, performance of switched-mode power supply (SMPS) for electronics have been growing to prominence. As front-end converters in typical SMPS structure, ac-dc power-factor correction (PFC) circuits play a key role in regulations of input power factor, harmonics and dc output voltage, which has a decisive effect on entire power-supply performances. Universal ac-line and low-power system (90–264 Vrms, up to 300–400 W) is one of the most common power-supply speci
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5

Badawy, Mohamed O. "Grid Tied PV/Battery System Architecture and Power Management for Fast Electric Vehicles Charging." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1468858915.

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6

Morais, Douglas Carvalho. "Retificador trifásico boost semi-controlado, com elevado fator de potência e controle por razão cíclica variável." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/153785.

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Submitted by DOUGLAS CARVALHO MORAIS (morais.sccp.carvalho@gmail.com) on 2018-04-26T20:36:20Z No. of bitstreams: 1 RETIFICADOR TRIFÁSICO BOOST SEM PONTE DE DIODOS, COM ELEVADO FATOR DE POTÊNCIA E CONTROLE POR RAZÃO CÍCLICA VARIÁVEL.pdf: 3578931 bytes, checksum: 59462e5e8af8153b4c38efb1636c59de (MD5)<br>Approved for entry into archive by Cristina Alexandra de Godoy null (cristina@adm.feis.unesp.br) on 2018-04-27T12:43:58Z (GMT) No. of bitstreams: 1 morais_dc_me_ilha.pdf: 3578931 bytes, checksum: 59462e5e8af8153b4c38efb1636c59de (MD5)<br>Made available in DSpace on 2018-04-27T12:43:58Z (GMT).
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7

Ghosh, Antip, and Mayank Kandpal. "State-space average Modeling of DC-DC Converters with parasitic in Discontinuous Conduction Mode (DCM)." Thesis, 2010. http://ethesis.nitrkl.ac.in/1640/1/Project_Report(Mayank_Kandpal_and_Antip_Ghosh).pdf.

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Discontinuous Conduction Mode occurs due to low load current operation of converters which employ current or voltage unidirectional switches.The switching ripples in inductor current or capacitor voltage causes the polarity to reverse of the applied switch current or voltage and thus a zero current mode is reached. Nowadays, converters are so designed,to operate in DCM for all loads due to its higher efficiency and lower losses.In this thesis, we have derived the Reduced Order & Full Order Averaged Models for the Buck and Boost configuration of converters. Also we calculated the output transfe
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8

Nayak, Namratha. "A Study of Experience Mapping Based Predictive Controller as Applied to Switching Converters." Thesis, 2015. http://etd.iisc.ac.in/handle/2005/2758.

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Experience Mapping based Prediction Control (EMPC) is a new type of controller presented in literature, which is based on the concept of Human Motor Control (HMC). During the developmental phase, called the initial learning phase, the controller records the experience in a knowledge base, through online interactions with the system to be controlled. This knowledge base created using the experience maps is termed as Experience Mapped Knowledge Base (EMK). The controller envisages the development of EMK only through interaction with the system, without the need for knowledge of the detailed plan
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9

Nayak, Namratha. "A Study of Experience Mapping Based Predictive Controller as Applied to Switching Converters." Thesis, 2015. http://hdl.handle.net/2005/2758.

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Experience Mapping based Prediction Control (EMPC) is a new type of controller presented in literature, which is based on the concept of Human Motor Control (HMC). During the developmental phase, called the initial learning phase, the controller records the experience in a knowledge base, through online interactions with the system to be controlled. This knowledge base created using the experience maps is termed as Experience Mapped Knowledge Base (EMK). The controller envisages the development of EMK only through interaction with the system, without the need for knowledge of the detailed plan
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10

Ou, Sheng-Yuan, and 歐勝源. "Switching-Frequency Control for Regulated Discontinuous Conduction Mode Boost Rectifiers." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/48376946980509353907.

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博士<br>國立臺灣科技大學<br>電子工程系<br>91<br>Abstract A novel switching-frequency control method for regulated single-switch boost rectifiers operating at the boundary of the discontinuous and continuous conduction modes is presented in this dissertation. To obtain a source current with least amount of low-order harmonics, the duty cycle within a switching period is proportional to the ratio of the instantaneous value of the source voltage to the output voltage, called the varying duty cycle control method. The varying duty cycle within one switching period is extended to the largest to incre
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11

Hsien-Liu, Hsiu, and 劉信賢. "Design of a Digital Controller for a Buck Converter Operating in Discontinuous Conduction Mode." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/12257276209524101667.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>97<br>DC Power Converter with a digital compensator provides design flexibility and the possibilities of on-line adjustment of compensation. In this thesis , digital compensation designs for the converter working in both the continuous conduction mode (CCM) and the discontinuous conduction mode (DCM) are described with emphasis on DCM operation. Experiments were also conducted using a DSP ,TMS320LF2812,to implement the compensator.
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12

Lin, C. I., and 林敬穎. "Application of Describing Function to Estimate the Continuous and Discontinuous Conduction Mode for Converter." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/66567995772049872346.

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碩士<br>逢甲大學<br>自動控制工程學系<br>89<br>For a dc-to-dc buck converter , the performance of the conductor is significantly different for the converter operating on the continuous conduction mode (CCM) or discontinuous conduction mode (DCM). In this paper, we address the operating condition on the CCM and DCM for a saturated inductor. I will show that the inductor plays a essential role for the converter operating on the CCM and DCM. It is known that when the load is large, the inductance for the inductor always changes. This is due to the fact that when the current load is large, the inductance always
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13

Lin, Chun-Feng, and 林群峰. "Analysis and Design of the Ripple-Free Input-Current Boost Converter in Discontinuous Conduction Mode." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/96749045535717072093.

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碩士<br>國立海洋大學<br>電機工程學系<br>87<br>The conventional boost converter is very popular in many industrial applications. However, the input current ripple will affect its ability to meet electromagnetic interference (EMI) requirements. In particular, its application will be limited due to its very high input current harmonic content when the boost converter operates in the discontinuous conduction mode. In this report, a modified boost converter operating in discontinuous conduction mode will be proposed. By using coupled inductor technique, we will achieve a ripple-free input current. The
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14

Denniston, Nicholas Aaron. "High Gain Transformerless DC-DC Converters for Renewable Energy Sources." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7778.

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Renewable energy sources including photovoltaic cells, fuel cells, and wind turbines require converters with high voltage gain in order to interface with power transmission and distribution networks. These conversions are conventionally made using bulky, complex, and costly transformers. Multiple modules of single-switch, single-inductor DC-DC converters can serve these high-gain applications while eliminating the transformer. This work generally classifies multiple modules of single-switch, single-inductor converters as high gain DC-DC converters transformers. The gain and efficiency of both
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15

Schenk, Kurt. "Power factor correction topologies and small-signal modeling. I: Single-phase and three-phase power factor correction. II: Small-signal analysis of converters in discontinuous conduction mode." Thesis, 1999. https://thesis.library.caltech.edu/6015/1/Schenk_k_1999.pdf.

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Part I: This thesis is motivated by the increasing demand for power quality improvement. Power factor correction topologies for both single- and the three-phase utility lines are investigated and new modes of operation are introduced. The discussed topologies are so-called automatic power factor correctors. The current shaping function is a natural property of these circuits, and no extra current control loop is necessary. In both the single- and three-phase cases, a control method is introduced which provides full output regulation and simultaneously reduces the distortion of the inpu
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16

Αραβανής, Θεοφάνης. "Μελέτη και κατασκευή διάταξης διασύνδεσης φωτοβολταϊκής γεννήτριας με το ηλεκτρικό δίκτυο χαμηλής τάσης". Thesis, 2012. http://hdl.handle.net/10889/5292.

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Η παρούσα διπλωματική εργασία πραγματεύεται τη μελέτη, την ανάλυση καθώς και την κατασκευή μιας νέας τοπολογίας για τη διασύνδεση φωτοβολταϊκών (Φ/Β) γεννητριών, μικρής ισχύος, με το ηλεκτρικό δίκτυο των αστικών περιοχών. Η εργασία αυτή εκπονήθηκε στο Εργαστήριο Ηλεκτρομηχανικής Μετατροπής Ενέργειας του Τμήματος Ηλεκτρολόγων Μηχανικών και Τεχνολογίας Υπολογιστών της Πολυτεχνικής Σχολής του Πανεπιστημίου Πατρών. Στόχος της διπλωματικής εργασίας είναι η συμβολή της στον τομέα των Φ/Β μονάδων διεσπαρμένης παραγωγής, με την κατασκευή μιας ηλεκτρονικής διάταξης, η οποία θα χρησιμοποιηθεί για τη δι
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