High speed turn-on reverse conducting 4kV static induction thyristors based on the buried gate type p-base n-emitter soft contact structure and anti-parallel diodes for solid-state power supplies in high energy accelerators

2006 ◽  
Vol 50 (9-10) ◽  
pp. 1567-1578 ◽  
Author(s):  
N. Shimizu ◽  
M. Miyoshi ◽  
S. Tange ◽  
T. Sekiya ◽  
T. Ito ◽  
...  
Keyword(s):  
Solid State ◽  
High Speed ◽  
Contact Structure ◽  
State Power ◽  
High Energy ◽  
Power Supplies ◽  
Soft Contact ◽  
Turn On ◽  
Static Induction ◽  
Static Induction Thyristors

scholarly journals AIR-COOLED 350 W X-BAND SOLID-STATE POWER AMPLIFIER

2020 ◽  
Vol 258 (3) ◽  
pp. 43-52
Author(s):  
V. E. Akinin ◽  
O. V. Borisov ◽  
K. A. Ivanov ◽  
Yu. V. Kolkovskiy ◽  
V. M. Minnebaev ◽  
...  
Keyword(s):  
Solid State ◽  
Output Power ◽  
Power Amplifier ◽  
Microwave Power ◽  
State Power ◽  
Control Unit ◽  
Power Supplies ◽  
Amplifier Output ◽  
X Band ◽  
Secondary Power

In this paper we present the results of the design and production of an air-cooled X-band solid-state power amplifier based on AlGaN/GaN/SiC Schottky FET. The power amplifier includes: preliminary power amplifier, output power amplifiers, set of secondary power supplies, digital control unit, monitoring system for the power amplifier performance, set of microwave power waveguide combiners.

High-power copper vapor lasers driven by solid state power supplies

2001 ◽  
Author(s):  
E. Le Guyadec ◽  
D. Chatroux ◽  
L. Garnier ◽  
F. Fourreau
Keyword(s):  
Solid State ◽  
High Power ◽  
State Power ◽  
Power Supplies ◽  
Copper Vapor ◽  
Copper Vapor Lasers

A Digital System for the Recording of Impact Velocity, Acceleration and Forming Load of a High Energy Rate Forming Machine

1987 ◽  
Vol 109 (4) ◽  
pp. 392-396
Author(s):  
O. Derriche ◽  
D. C. Hodgson
Keyword(s):  
Solid State ◽  
Impact Velocity ◽  
Metal Forming ◽  
High Speed ◽  
High Energy ◽  
Displacement Velocity ◽  
Forming Load ◽  
High Energy Rate ◽  
Moving Body ◽  
Digital Nature

A noncontacting device has been developed to measure the instantaneous displacement, velocity, or acceleration of a moving body. The device, based on a solid-state camera, has been used to measure some of the main parameters in a high-speed metal forming operation, though in principle it could be applied to almost any moving body. Errors associated with the digital nature of the measurement are discussed and evaluated.

scholarly journals Response of geostationary communications satellite solid-state power amplifiers to high-energy electron fluence

Space Weather ◽  
2015 ◽  
Vol 13 (5) ◽  
pp. 298-315 ◽  
Author(s):  
Whitney Lohmeyer ◽  
Ashley Carlton ◽  
Frankie Wong ◽  
Michael Bodeau ◽  
Andrew Kennedy ◽  
...  
Keyword(s):  
Solid State ◽  
Power Amplifiers ◽  
State Power ◽  
High Energy ◽  
Energy Electron ◽  
High Energy Electron

Microfabrication research at the National Submicron Facility

1983 ◽  
Vol 41 ◽  
pp. 86-89
Author(s):  
E.D. Wolf
Keyword(s):  
Integrated Circuits ◽  
Particle Physics ◽  
High Speed ◽  
New Technology ◽  
High Energy ◽  
High Energy Particle ◽  
New Science ◽  
Wide Range ◽  
Intermediate Domain ◽  
Circuit Function

Most microelectronics devices and circuits operate faster, consume less power, execute more functions and cost less per circuit function when the feature-sizes internal to the devices and circuits are made smaller. This is part of the stimulus for the Very High-Speed Integrated Circuits (VHSIC) program. There is also a need for smaller, more sensitive sensors in a wide range of disciplines that includes electrochemistry, neurophysiology and ultra-high pressure solid state research. There is often fundamental new science (and sometimes new technology) to be revealed (and used) when a basic parameter such as size is extended to new dimensions, as is evident at the two extremes of smallness and largeness, high energy particle physics and cosmology, respectively. However, there is also a very important intermediate domain of size that spans from the diameter of a small cluster of atoms up to near one micrometer which may also have just as profound effects on society as “big” physics.

TEM study of amorphization of Cu and Ti foils by cold-rolling

1990 ◽  
Vol 48 (4) ◽  
pp. 146-147
Author(s):  
W. A. Chiou ◽  
N. L. Jeon ◽  
Genbao Xu ◽  
M. Meshii
Keyword(s):  
Solid State ◽  
Cold Rolling ◽  
High Energy ◽  
Rapid Quenching ◽  
Vapor Condensation ◽  
Metallic Alloys ◽  
Solid State Reactions ◽  
High Energy Particle ◽  
Amorphous Metallic Alloys ◽  
Thin Foils

For many years amorphous metallic alloys have been prepared by rapid quenching techniques such as vapor condensation or melt quenching. Recently, solid-state reactions have shown to be an alternative for synthesizing amorphous metallic alloys. While solid-state amorphization by ball milling and high energy particle irradiation have been investigated extensively, the growth of amorphous phase by cold-rolling has been limited. This paper presents a morphological and structural study of amorphization of Cu and Ti foils by rolling.Samples of high purity Cu (99.999%) and Ti (99.99%) foils with a thickness of 0.025 mm were used as starting materials. These thin foils were cut to 5 cm (w) × 10 cm (1), and the surface was cleaned with acetone. A total of twenty alternatively stacked Cu and Ti foils were then rolled. Composite layers following each rolling pass were cleaned with acetone, cut into half and stacked together, and then rolled again.

A Solid-State On-Load Tap Changer for the Power Transformers of 10—0.4 kV Distribution Networks

Vestnik MEI ◽  
2020 ◽  
Vol 6 (6) ◽  
pp. 82-90
Author(s):  
Dmitriy I. Panfilov ◽  
◽  
Mikhail G. Astashev ◽  
Aleksandr V. Gorchakov ◽  
◽  
...  
Keyword(s):  
Solid State ◽  
Physical Model ◽  
High Speed ◽  
Power Transformer ◽  
Voltage Control ◽  
Power Transformers ◽  
Control Algorithms ◽  
Load Voltage ◽  
Tap Changer ◽  
Load Tap Changer

The specific features relating to voltage control of power transformers at distribution network transformer substations are considered. An approach to implementing high-speed on-load voltage control of serially produced 10/0.4 kV power transformers by using a solid-state on-load tap changer (SOLTC) is presented. An example of the SOLTC circuit solution on the basis of thyristor switches is given. On-load voltage control algorithms for power transformers equipped with SOLTC that ensure high reliability and high-speed operation are proposed. The SOLTC performance and the operability of the suggested voltage control algorithms were studied by simulation in the Matlab/Simulink environment and by experiments on the SOLTC physical model. The structure and peculiarities of the used simulation Matlab model are described. The SOLTC physical model design and its parameters are presented. The results obtained from the simulating the SOLTC operation on the Matlab model and from the experiments on the SOLTS physical model jointly with a power transformer under different loads and with using different control algorithms are given. An analysis of the experimental study results has shown the soundness of the adopted technical solutions. It has been demonstrated that the use of an SOLTC ensures high-speed voltage control, high efficiency and reliability of its operation, and arcless switching of the power transformer regulating taps without load voltage and current interruption. By using the SOLTC operation algorithms it is possible to perform individual phase voltage regulation in a three-phase 0.4 kV distribution network. The possibility of integrating SOLTC control and diagnostic facilities into the structure of modern digital substations based on the digital interface according to the IEC 61850 standard is noted.

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