The complex of automated control of secondary power supplies parameters

2018 ◽  
Author(s):  
I. A. Ivanov ◽  
P. S. Korolev ◽  
K. D. Sedov
Keyword(s):  
Power Supplies ◽  
Automated Control ◽  
Secondary Power

Stability Problems in Designing Aggregated and Distributed Systems of Secondary Power Supplies

2020 ◽  
Vol 91 (2) ◽  
pp. 108-114
Author(s):  
V. F. Dmitrikov ◽  
D. V. Shushpanov ◽  
A. Yu. Petrochenko ◽  
M. A. Alekseev
Keyword(s):  
Distributed Systems ◽  
Power Supplies ◽  
Stability Problems ◽  
Secondary Power

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.

scholarly journals RADIATION-RESISTANT OPTOCOUPLER FOR SECONDARY POWER SUPPLIES

2020 ◽  
pp. 40-48
Author(s):  
A.E. Lebedinskaya ◽  
Yu.A. Kabalnov ◽  
A.N. Trufanov ◽  
A.V. Gradoboev ◽  
V.V. Sednev
Keyword(s):  
Communication Systems ◽  
Optical Radiation ◽  
Neutron Radiation ◽  
Power Supplies ◽  
Metal Ceramic ◽  
Radiation Resistant ◽  
Secondary Power ◽  
Organic Adhesive

In this paper we present the results of development of the optocouplers for secondary power supplies. The dies of the optical radiation emitters are based on double heteroepitaxial AlGaAs structures, and the dies of the radiation receivers are based on silicon-on-sapphire. Dies were bonded to metal-ceramic packages using the optically clear silicone-organic adhesive. The results of the optocoupler testing showed the level of resistance to γ-neutron radiation, which meets the requirements for radiationresistant devices used in control and communication systems.

scholarly journals Diagnostics of secondary power supplies means of communication

2021 ◽  
Vol 5 (1) ◽  
pp. 140-145
Author(s):  
Lev Sakovych ◽  
Heorhii Krykhovetskyi ◽  
Iurii Myroshnychenko ◽  
Ivan Ihnatenko
Keyword(s):  
Block Diagram ◽  
Correct Diagnosis ◽  
Average Power ◽  
Diagnostic Algorithm ◽  
Power Supplies ◽  
Radio Station ◽  
Technical Diagnostics ◽  
Metrological Reliability ◽  
Secondary Power ◽  
Diagnostic Support

The article discusses an approach to technical diagnostics of secondary power supplies for communication facilities. Diagnostics is carried out during the current repair. This takes into account the features of the object being diagnosed, which affect the process of searching for defects. The purpose of the article is to analyze possible options for the development of diagnostic support for secondary power supplies. This takes into account the metrological reliability of measuring equipment. The probability of correct diagnosis is also calculated when searching for defects during routine repairs. Practically implemented recommendations for ensuring the required values of the indicators of the maintainability of communication facilities are substantiated. The possibility and expediency of using effective methods for diagnostics of secondary power supplies of communication facilities, which consider the sources as objects with many inputs, are shown. This allows the design to take into account the requirements for the maintainability of the product. During routine repairs, the time needed to search for defects is minimized. This is done through a rational choice of diagnostic procedures. When choosing, design features and conditions for restoring performance are taken into account. The proposed block diagram of the algorithm for choosing a diagnostic option minimizes the average recovery time of an object. A specific example of using the results obtained in the development of a conditional diagnostic algorithm for the power supply unit of the exciter and the radio receiver of an average power radio station is given. It is advisable to use the results obtained in the development of diagnostic support for promising communication facilities or in the improvement of existing communication facilities without additional costs.

A High-Voltage Terminal for a Field-Emission Gun

1972 ◽  
Vol 30 ◽  
pp. 428-429
Author(s):  
N. F. Ziegler
Keyword(s):  
Field Emission ◽  
High Voltage ◽  
Atmospheric Pressure ◽  
Power Supplies ◽  
High Coherence

A high-voltage terminal has been constructed for housing the various power supplies and metering circuits required by the field-emission gun (described elsewhere in these Proceedings) for the high-coherence microscope. The terminal is cylindrical in shape having a diameter of 14 inches and a length of 24 inches. It is completely enclosed by an aluminum housing filled with Freon-12 gas at essentially atmospheric pressure. The potential of the terminal relative to ground is, of course, equal to the accelerating potential of the microscope, which in the present case, is 150 kilovolts maximum.

Status of nondestructive control of transport function metal products at JSC EVRAZ NTMK

2020 ◽  
Vol 76 (6) ◽  
pp. 586-590
Author(s):  
S. P. Bersenev ◽  
E. M. Slobtsova
Keyword(s):  
Crack Detection ◽  
Middle Part ◽  
Control Line ◽  
Magnetic Powder ◽  
Nondestructive Control ◽  
Automated Control ◽  
Ultrasonic Control ◽  
Acoustic Contact ◽  
In Series

Achievements in the area of automated ultrasonic control of quality of rails, solid-rolled wheels and tyres, wheels magnetic powder crack detection, carried out at JSC EVRAZ NTMK. The 100% nondestructive control is accomplished by automated control in series at two ultrasonic facilities RWI-01 and four facilities УМКК-1 of magnetic powder control, installed into the exit control line in the wheel-tyre shop. Diagram of location, converters displacement and control operations in the process of control at the facility RWI-01 presented, as well as the structural diagram of the facility УМКК-1. The automated ultrasonic control of rough tyres is made in the tyres control line of the wheel-tyre shop at the facility УКБ-1Д. The facility enables to control internal defects of tyres in radial, axis and circular directions of radiation. Possibilities of the facility УКБ-1Д software were shown. Nondestructive control of railway rails is made at two facilities, comprising the automated control line of the rail and structural shop. The УКР-64Э facility of automated ultrasonic rails control is intended to reveal defects in the area of head, web and middle part of rail foot by pulse echo-method with a immersion acoustic contact. The diagram of rail P65 at the facility УКР-64Э control presented. To reveal defects of the macrostructure in the area of rail head and web by mirror-shadow method, an ultrasonic noncontact electromagnetic-acoustic facility is used. It was noted, that implementation of the 100% nondestructive control into the technology of rolled stuff production enabled to increase the quality of products supplied to customers and to increase their competiveness.

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