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.
Results
Showing 1 to 20 of 613 for “"High-Voltage"”.
-
High Voltage Pulse Measurement System
… system to safely and accurately measure high voltage, high frequency pulses in harsh EM environments. High voltage pulses apply to medical, plasma, and food industries. The difficulty of accurately measuring high voltage pulses continues to pose an issue. Measuring high voltage systems …
-
High Voltage Synchronous Rectifier Design Considerations
… has allowed for systems to operate at higher and higher voltages than previously achieved. One area of consideration during this high voltage transition is the synchronous rectifier, which is traditionally designed as an afterthought. Prior research in synchronous rectifiers have been …
-
Integrated optics pockels cell high voltage sensor
… Pockels cell, to be used for the measurement of high voltage in power transmission systems, is described. The operation of the sensor is based on the electro-optic effect in lithium niobate. The sensing head consists of a waveguide formed by diffusing a strip of titanium in a y-cut lithium …
-
Slot discharge characteristics of high voltage machines.
… of discharge generation in the slot section of a high voltage stator winding and the correlations established between these processes and the discharge signal patterns detected at the winding termination by condition monitoring instrumentation. A better understanding of slot discharge activity has …
-
Partial discharge measurements in high voltage motors.
… partial discharges in the stator winding of a high voltage electrical machine. This technique forms part of an on-line health monitoring strategy for the insulation of high voltage machines. Existing diagnostic techniques and partial discharge measurement systems are reviewed. The requirement …
-
Particle contamination of high voltage DC insulators.
Thesis. 1978. Ph.D.--Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
-
Fault Location in High Voltage Shunt Capacitor Banks
High Voltage Shunt Capacitor Banks (HV-SCBs) are critical substation assets that are primarily used to improve power factor and thus power transmission capability. Over temperature, over voltages, manufacturing defects can cause internal failures of capacitor elements. With today’s sensitive …
-
Magnetic flux compression for high voltage pulse applications
… Simple MFCG with a single helix produce high output energy only into low inductance loads, thus producing several 100 kA of current at a voltage level of less than l0kV. Many pulsed power devices require less current but a considerably higher voltage level. For effectively driving a high …
-
Mechanisms for triggering high-voltage breakdown in vacuum
… (94% Al203) have been measured under ultra-high vacuum (P < 10-8 mBar) conditions. A high-resolution CCD camera was used to make real-time optical recordings of DC prebreakdown luminescence from the ceramic, under conditions where DC current magnitudes were limited to less than 50μA. Two …
-
High-voltage ESD PNP clamp simulation and design
In this work high-voltage Electrostatic discharge (ESD) PNPs are studied through TCAD simulation and device measurement. PNPs for three different voltage classes, 16 V, 65 V, and 100 V, in a 0.5-µm Bipolar CMOS DMOS (BCD) technology are used as the context for the study. The PNPs are varied in …
-
The protection of high-voltage shunt capacitor banks
… conditions such as bank over currents, surge voltages and harmonics can cause extended undesired conditions. Today's protection methods are able to remove a shunt capacitor bank from service before extensive damage is done, although the location of the faulty capacitor units will not be known …
-
High-voltage wideband switching amplifier for capacitive loads
… always required lots of power? In this thesis, a highly efficient switching amplifier class is developed that is capable of delivering energy to, as well as taking energy from, a capacitive load in a finely controllable, dissipationless manner. Several control schemes were investigated, and a …
-
Distributing switch circuits for high voltage pulse applications
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
-
High Voltage DC-DC Converter Design for Submarine Application
… for a step-down DC-DC converter used in a high voltage submarine application is presented. The purpose of the converter is to step down a 5000V-6000V input to a 24V output which can serve as an input to a submarine sensor. The completed system consists of two stages where the first stage is …
-
Gating Methods for High-Voltage Silicon Carbide Power MOSFETs
… grid, and energy management applications. High efficiency, increased power density, and reliability at high-temperatures are some of the main benefits of SiC technology. However, the many challenges associated with these devices have prevented their adoption into industry applications. The …
-
Arcing mitigation and predictions for high voltage solar arrays
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1993.
Page 1 of 31