Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 96 for “"current source"”.
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Bandgap current source
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Class-E Current Source Power Conversion
Current source is used in auxiliary power supplies, battery chargers, and LED drivers. The battery chargers are required to provide constant current within a wide output voltage range, similar to LED drivers. The load-independent (LI) Class-E inverter is a promising topology for such applications …
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Current source based wind energy conversion system
… a full-scale back-to-back pulse width modulated current source converter (BTB-PWM-CSC) as an interfacing converter for a variable-speed wind energy conversion system (WECS) that uses a permanent magnet synchronous generator (PMSG). It has been shown that the proposed current source converter …
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Design and verification of a current source inverter
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Current-Source DC-DC Converter for Fiber-Optic Communication Systems
<p>In this thesis, a proof of concept for a current-source DC-DC converter for powering sensors used in an underwater communications system is presented. The proposed converter steps down an input current of 0.9 A to 0.625 A, while maintaining an output voltage of 24 V and output power of 15 W. The …
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Advanced Semiconductor Device and Topology for High Power Current Source Converter
… device and topology for the high power current source converter (CSC). The CSC is very attractive in high power applications due to its lower output dv/dt, easy regeneration capability and implicit short-circuit protection. Traditionally, either a symmetrical gate turn-off (GTO) thyritor …
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Current source dc-dc and dc-ac converters with continuous energy flow
This work considers current sourced power electronic converters. The thesis classifies and presents several new single-phase and three-phase differential-mode current source inverters that evolve from the basic dc-dc converter topologies. The switched, large-signal, and small-signal models of these …
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High performance on-line control of three-phase PWM current-source converters
… with an intermediate dc link, the voltage-source and the current-source. Despite the advantages of the current-source topology such as current limiting, higher reliability, and low ac-voltage harmonic distortion, voltage-source topologies are more widely used. This is in part due to the …
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Development of a temperature insensitive current controlled current source for LNA bias circuit applications
… development of a novel temperature insensitive Current Controlled Current Source (CCCS), in bipolar technology, in order to provide accurate amplification of a Proportional To Absolute Temperature (PTAT) reference current. The output current of the CCCS is intended for application as the bias …
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An Investigation of the Current Source-Function Technique for Solving Problems of Electromagnetic Scattering
Made available in DSpace on 2014-12-12T20:54:24Z (GMT). No. of bitstreams: 1 7624095.pdf: 7798956 bytes, checksum: 125edc656143e6b2ab33af08c644935d (MD5) Previous issue date: 1976
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An investigation of the current source-function technique for solving problems of electromagnetic scattering
… incident fields by treating all fields and currents as Schwartz distributions, (b) the demonstration of a method for finding solutions of the homogeneous finite part integral equation, and (c) the development of consistency conditions which are required for the uniqueness of the current …
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MOSFET Current Source Gate Drivers and Topologies for High Efficiency and High Frequency Voltage Regulator Modules
… trend of decreasing (sub 1V) while the demanding currents increase (higher than 100A). Furthermore, the high slew rates during the transient will reach 1200 A/us. All these impose a serious challenge on a Voltage Regulator (VR) or Voltage Regulator Module (VRM). In order to meet requirements of …
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MOSFET Current Source Gate Drivers, Switching Loss Modeling and Frequency Dithering Control for MHz Switching Frequency DC-DC Converters
… in this thesis. The first contribution is a new current source gate drive circuit for power MOSFETs. The circuit provides a nearly constant gate current to reduce switching transition times and therefore switching loss in power MOSFETs. In addition, it can recover a portion of the gate energy …
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WBG-based Current Source Inverter for Motor Drive Application [Inverter a Corrente Impressa con dispositivi WBG per azionamenti elettrici]
Questa tesi valuta la fattibilità dell'utilizzo degli inverter a sorgente di corrente (CSI) nelle applicazioni di azionamento dei motori. Il principio di funzionamento del CSI viene inizialmente discusso attraverso un modello analitico, insieme a un'analisi delle transizioni di commutazione e del …
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Advancements in resonant and current source gate driving techniques for fast switching Wide Band Gap (WBG) Metal Oxide Field Effect Transistors (MOSFETs)
… Oxide Field Effect Transistor, like the Voltage Source Gate Driver (VSGD), prove to be inefficient for high-frequency operation, especially in applications where Wide-Bandgap devices are used. This is because of their losses and poor control over the switching transitions. This thesis …
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The Interaction of Intensity and Deviance on Auditory Event-Related Potentials: Findings Using Principal Component Analysis (PCA) of Current Source Densities (CSDs)
… of sensory processing. A P3a-like vertex source was elicited by the loudest intensity (100 dB), but was absent for all other intensities. Insights gained from this study have direct implications for both clinical LDAEP and MMN studies. LDAEP studies should consider how overlapping or …
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Analysis of Two-Phase Servomotor With Small Fraction of Sine Wave of Current Applied to Control Winding and Reference Winding Supplied From a Sinusoidal Current Source
Made available in DSpace on 2014-12-08T22:23:21Z (GMT). No. of bitstreams: 1 6406033.pdf: 2724043 bytes, checksum: 1da2fd7a5871663a186108cdf9265e3b (MD5) Previous issue date: 1963
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Study and Improvement of Single-Stage Power Factor Correction Techniques
… PFC converters. As an example, the continuous current mode (CCM) current source single-stage PFC converter is studied. The circuit intuitions and design consideration of this converter are presented. Also, an improved current source single-stage PFC converter with a low-frequency auxiliary …
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Spatio-temporal analysis in functional brain imaging
Localizing sources of activity from electroencephalography (EEG) and magnetoencephalography (MEG) measurements involves solving an ill-posed inverse problem, where infinitely many source distribution patterns can give rise to identical measurements. This thesis aims to improve the accuracy of …
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