A high step‐up DC–DC converter with active switched LC‐network and voltage‐lift circuit: Topology, operating principle, and implementation

2021 ◽  
Author(s):  
Armineh Dastgiri ◽  
Majid Hosseinpour ◽  
Farzad Sedaghati ◽  
Seyed Reza Mousavi‐Aghdam
Keyword(s):  
Operating Principle ◽  
Circuit Topology

Improvement of Boost Circuit Based on Fly-Back Switching Power Supply

2012 ◽  
Vol 588-589 ◽  
pp. 496-500
Author(s):  
Ying Chen ◽  
Liang Hong Li ◽  
Zhi Yong Li
Keyword(s):  
Power Supply ◽  
Operating Principle ◽  
Switching Power Supply ◽  
Circuit Topology ◽  
Switching Power

A kind of self-couple transformer voltage-elevating fly-back circuit topology is presented in this paper, and analyses the operating principle in detail. A voltage-elevating fly-back type DC-DC convertor based on theory is designed. Finally, the feasibility of self-couple transformer voltage-elevating fly-back circuit is testified by experiment.

Modeling and Design for a Intelligent Three-Level Boost Converter

2013 ◽  
Vol 331 ◽  
pp. 11-15 ◽  
Author(s):  
Da Yong Lu ◽  
Chao Wei Li ◽  
Jing Tian Shi
Keyword(s):  
Theoretical Analysis ◽  
High Precision ◽  
Modular Design ◽  
Boost Converter ◽  
Operating Principle ◽  
Reliable Operation ◽  
Circuit Topology ◽  
Module Design ◽  
Level Converter ◽  
The Ideal

In this paper, the circuit topology and operating principle of the three level converter Boost converter was modeled, and its working mode was also analyzed, then, a practical circuit was established, through Simulink and experiment, the theoretical analysis result was verified. The hardware and software of the three-level Boost converter adopted modular design, the module function was detected after completing each module design, which has efficiently improved the its efficiency, readability, portability and versatility. The ideal function of the three-level Boost converter was realized, which is easy to control, high-precision, Stable and reliable operation.

Research on a Novel Miniature Air Compressor Generating both Compressed Air and Vacuum

2014 ◽  
Vol 1027 ◽  
pp. 253-256
Author(s):  
Jian Hai Han ◽  
Jie Zhang ◽  
Dong Liao Fu ◽  
Zhi Gang Hu
Keyword(s):  
Vacuum Pump ◽  
Operating Principle ◽  
Experimental Results ◽  
System Structure ◽  
Compressed Air ◽  
The Novel ◽  
Pump Mode ◽  
Air Compressor

A new kind of miniature air compressor is proposed in this paper. This compressor can produce both compressed air and vacuum. The system structure, operating principle and experimental characteristics of the novel miniature air compressor are described in detail. The experimental results prove that the shift between air compressor mode and vacuum pump mode is possible and the design of system structure is appropriate.

scholarly journals Optimised calibration programmes for comparators for instrument transformers

2021 ◽  
Vol 88 (2) ◽  
pp. 122-131
Author(s):  
Christian Mester
Keyword(s):  
Experimental Study ◽  
Operating Principle ◽  
Device Under Test ◽  
Operating Range ◽  
Ratio Error ◽  
Phase Displacement ◽  
Instrument Transformers ◽  
Instrument Transformer ◽  
Method Of Measurement

Abstract Traditionally, instrument transformers are calibrated using bridges. By definition, bridges use the null method of measurement. The traditional calibration programme for instrument transformer bridges characterise namely this null measurement. Many new commercial comparators for instrument transformer use a very different method. They sample the secondary signals of reference and device under test (dut) transformer independently. Based on the samples, magnitude and phase of both signals are determined. Ratio error and phase displacement are calculated. Consequently, the significance of their calibration using the traditional calibration programme is limited. Moreover, the operating range of modern comparators is much larger than that of bridges. The additional versatility cannot be used without an adapted calibration programme. This article analyses the calibration programmes for both technologies. An experimental study confirms both the suitability of the new calibration programme and the need to chose the calibration programme depending on the technology of the device to be calibrated. The conclusion is very general and applies to all measurement problems where an operating principle is replaced by another – when changing the operating principle, it is important to check the calibration programme and adapt it if necessary.

scholarly journals Voltage-Mode Universal Biquadratic Filter Using Single DVCC

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Jiun-Wei Horng ◽  
Zih-Yang Jhao
Keyword(s):  
Current Conveyor ◽  
Circuit Topology ◽  
Voltage Mode ◽  
Allpass Filters ◽  
Differential Voltage ◽  
Biquadratic Filter ◽  
Differential Voltage Current Conveyor ◽  
Output Filter

A voltage-mode universal biquadratic filter using a differential voltage current conveyor (DVCC), two capacitors, and two resistors is presented. The proposed circuit has four input terminals and three output terminals and can realize all the standard filter functions, which are lowpass, bandpass, highpass, notch, and allpass filters, without changing the circuit topology. Three simultaneous output filter responses can be obtained from some derived filter types. The proposed circuit employs only one DVCC that simplifies the configuration.

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