scholarly journals Calculation of pulse voltage stabilizer

2020 ◽  
Vol 178 ◽  
pp. 01055
Author(s):  
Dmitry Cheremukhin
Keyword(s):  
Integrated Circuits ◽  
Communication Systems ◽  
Power Source ◽  
Electrical Circuit ◽  
Voltage Stabilizer ◽  
Scientific Article ◽  
Switching Power Supply ◽  
Network Efficiency ◽  
Switching Power ◽  
Secondary Power

This scientific article is devoted to one of the priority issues in electronics, namely the implementation of the engineering task of designing a power source. In my case, according to the terms of reference, which includes: the main parameters of the network, efficiency, a structural electrical circuit of a switching power supply was developed. In the process, the main functional units (blocks) were calculated and the choice of radio components from which they were built on the basis of: current values, reverse voltage, gain, operating frequency and other parameters of diodes, transistors, integrated circuits, Zener diodes, operational amplifiers was justified. In the “Methods” section, calculations will be made for the device blocks: a network rectifier, a push-pull transformer converter, a pre-amplifier circuit with a transformer input, an error signal comparison and amplification circuit, a sawtooth voltage generator, and a secondary power source. The information presented in the text is recommended to a narrow circle of specialists, priority in the field of power electronics, as well as in the field of communication systems.

LED Lighting Driver IC Design and Encapsulation Material Research

2014 ◽  
Vol 539 ◽  
pp. 559-562
Author(s):  
Fei Xiang Li
Keyword(s):  
Integrated Circuits ◽  
High Efficiency ◽  
Luminous Flux ◽  
Buck Converter ◽  
Material Research ◽  
Switching Power Supply ◽  
Led Driver ◽  
Led Lighting ◽  
Driving Mode ◽  
Switching Power

Semi-conductor lighting solution LED is developing quickly and now using wider and wider, and will absolutely replace classical lighting solution because of its high efficiency and reliability,long lifetime and low pollution. The development of white LED lighting solution lead to quickly development of the integrated circuits of driving LED,which creates enormous business opportunities. The thesis first describes I-V characteristics and luminous flux curve of LED and its driving circuit briefly. Then display the working theory of buck converter of LED driver. The thesis brings up a buck-mode LED driver which based on switching power supply technology, supplying higher efficiency compared with other driving mode.

scholarly journals SWITCH ASSEMBLY OF THE BUILT-IN POWER SUPPLY OF A PORTABLE ELECTRONIC DEVICE

2019 ◽  
Author(s):  
E. Belevskaya ◽  
P. Belevsky ◽  
I. Ozerchuk
Keyword(s):  
Power Supply ◽  
Electronic Device ◽  
Power Source ◽  
Electrical Circuit ◽  
Circuit Diagram ◽  
Switching Power ◽  
Battery Power ◽  
Portable Electronic Device ◽  
Schematic Diagrams

This article describes schematic diagrams of automatic load switching between a battery power source and an external (network adapter) power supply. In this work, a circuit diagram of the electrical circuit of the switching power source of a portable electronic device is proposed. The algorithm of operation of the node when changing the voltage value of the battery power source is considered.

scholarly journals The impulse power unit for a portable proton magnet resonance relaxometer

2020 ◽  
Vol 21 (6) ◽  
pp. 111-117
Author(s):  
Chi Kien Nguyen ◽  
R. S. Kashaev ◽  
O. V. Kozelkov
Keyword(s):  
High Frequency ◽  
Frequency Converter ◽  
Electronic Devices ◽  
Voltage Stabilizer ◽  
Switching Power Supply ◽  
Electrical Circuits ◽  
Switching Power ◽  
Circuit Structure ◽  
Transformer Power ◽  
Magnet Resonance

In this paper described the switching power supply (SPS) unit and represented its importance for electronic circuits in electronic devices. SPS directly affect the operation of electrical circuits and electronic equipment. In particular, this paper describes its use in a portable proton-magnetic resonance (PMR) relaxometer. Especial attention is to the method of constructing the circuit, and also deals with the comparense of the SPS with a transformer power source. This article presents the structure of schematic diagram of the SPS. The SPS structure works without a transformer, which reduces the size of the system and increases overall efficiency. The proposed circuit structure is based on a push-pull controller, a high- frequency converter with an amplifier and a voltage multiplier circuit and a voltage stabilizer. The simulation and experiments confirm the proposed configuration of SPS.

scholarly journals Influence of Aircraft Power Electronics Processing on Backup VHF Radio Systems

Electronics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 777
Author(s):  
Jan Leuchter ◽  
Radim Bloudicek ◽  
Jan Boril ◽  
Josef Bajer ◽  
Erik Blasch
Keyword(s):  
Power Electronics ◽  
Electromagnetic Interference ◽  
Communication Systems ◽  
Electromagnetic Compatibility ◽  
Intermediate Frequency ◽  
Radio Communication ◽  
Very High Frequency ◽  
Switching Power ◽  
Radio Systems ◽  
The Impact

The paper describes the influence of power electronics, energy processing, and emergency radio systems (ERS) immunity testing on onboard aircraft equipment and ground stations providing air traffic services. The implementation of next-generation power electronics introduces potential hazards for the safety and reliability of aircraft systems, especially the interferences from power electronics with high-power processing. The paper focuses on clearly identifying, experimentally verifying, and quantifiably measuring the effects of power electronics processing using switching modes versus the electromagnetic compatibility (EMC) of emergency radio systems with electromagnetic interference (EMI). EMI can be very critical when switching power radios utilize backup receivers, which are used as aircraft backup systems or airport last-resort systems. The switching power electronics process produces interfering electromagnetic energy to create problems with onboard aircraft radios or instrument landing system (ILS) avionics services. Analyses demonstrate significant threats and risks resulting from interferences between radio and power electronics in airborne systems. Results demonstrate the impact of interferences on intermediate-frequency processing, namely, for very high frequency (VHF) radios. The paper also describes the methodology of testing radio immunity against both weak and strong signals in accordance with recent aviation standards and guidance for military radio communication systems in the VHF band.

The Design of 5V/100W High Frequency Switching Power Supply

2013 ◽  
Vol 834-836 ◽  
pp. 1221-1224
Author(s):  
Hong Zhuan Cai ◽  
Li Bai
Keyword(s):  
Power Supply ◽  
High Frequency ◽  
High Efficiency ◽  
Design Method ◽  
Switching Power Supply ◽  
Widespread Application ◽  
Forward Converter ◽  
Switching Power ◽  
Dc Power ◽  
Important Field

Switching power supply is an important field of application of power electronic technology, the high frequency switching DC power supply with high efficiency, small size, light weight and other advantages obtain the widespread application. The application of synchronous rectifier technology, photoelectric coupling isolation technology and the active clamp forward converter design high frequency switching power supply with 16~40V DC input and 5V/100W DC output . its operational principle is analyzed, and using LM5026 control chip describes design method of switching power supply.

H∞ Control to the BUCK-Type Switching Power Supply with Small Perturbation

2013 ◽  
Vol 347-350 ◽  
pp. 1358-1362
Author(s):  
Zi Сheng Li ◽  
Li Xu ◽  
Bao Shan Yuan
Keyword(s):  
Power Supply ◽  
Current Control ◽  
Control Mode ◽  
State Variables ◽  
Switching Power Supply ◽  
Small Perturbations ◽  
Switching Power ◽  
Current Sampling ◽  
Output Filter ◽  
Filter Capacitor

The purpose in this paper is the design of the control to switching power supply for small perturbations. By the theoretical analysis and calculation, with the output filter inductor current and filter capacitor voltage switching power supply as two state variables, the conclusion is that control of the output filter inductor current sampling do well in the anti-jamming. The simulation is made for verification. And comparing the results, the current control mode shows a very strong anti-interference ability.

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