scholarly journals Modified Buck-Boost Converter as DC Motor Driver with ContinuousInput Current

2020 ◽  
Vol 19 ◽  
Keyword(s):  
Power Supply ◽  
Dc Motor ◽  
Boost Converter ◽  
Input Current ◽  
Small Signal ◽  
Large Signal ◽  
Time Signals ◽  
Switched Mode Power Supply ◽  
Dc Motor Driver ◽  
Output Filter

A modified Buck-Boost converter with output filter is treated as a switched mode power supply andas a two quadrant driver for DC machines. The modification is done by changing the position of the capacitorof the Buck-Boost. With this modification the input and the output currents of the converter are steady and themaximum input current is reduced compared to a normal Buck-Boost. The function of the modified converter isexplained with the help of time signals, the large signal and the small signal models are derived, the transferfunctions for the speed are calculated, dimensioning hints are given, and simulations are shown.

Improved Power Quality Switched-Mode Power Supply Using Buck–Boost Converter

2016 ◽  
Vol 52 (6) ◽  
pp. 5194-5202 ◽  
Author(s):  
Shikha Singh ◽  
Bhim Singh ◽  
G. Bhuvaneswari ◽  
Vashist Bist
Keyword(s):  
Power Quality ◽  
Power Supply ◽  
Boost Converter ◽  
Switched Mode Power Supply

Design of a Switching Power Supply for Wheelchair Controller Based on Magnetic Isolation Technology

2014 ◽  
Vol 1037 ◽  
pp. 299-302
Author(s):  
Rong Yang ◽  
Li Wang ◽  
Xiu Feng Zhang ◽  
Yan Ma
Keyword(s):  
Power Supply ◽  
Dc Motor ◽  
Experimental Results ◽  
Switching Power Supply ◽  
Powered Wheelchair ◽  
Switching Power ◽  
Design Requirements ◽  
Dc Motor Driver

This paper analyzes the principle and advantages of magnetic isolation feedback technology. And an effective method of 5W switching power supply, which can be used for controller of electrically powered wheelchair, is introduced. The main circuit is verified on the DC motor driver module of a wheelchair controller PGDT VR2. The experimental results show that the circuit works stably and can meet the design requirements.

Large signal modelling of a boost converter with output filter

2003 ◽  
Author(s):  
J. Font ◽  
L. Martinez ◽  
F. Guinjoan ◽  
A. Poveda ◽  
L. Garcia de Vicuna ◽  
...  
Keyword(s):  
Boost Converter ◽  
Large Signal ◽  
Signal Modelling ◽  
Output Filter

scholarly journals Improved Power Quality Switched Mode Power Supply Using Buck-Boost Converter

2021 ◽  
pp. 824-831
Author(s):  
Hariharan P ◽  
Dr. Ranjithkumar K
Keyword(s):  
Power Quality ◽  
Power Factor ◽  
Power Supply ◽  
Fuzzy Logic Controller ◽  
Power Factor Correction ◽  
Boost Converter ◽  
Boost Converters ◽  
Current Harmonics ◽  
Front End ◽  
Switched Mode Power Supply

In this work, The devices generally used in industrial, commercial and residential applications need to undergo rectification for their proper functioning and operation. The operation of the buck– boost converter in discontinuous conduction mode ensures inherent PFC operation and reduces complexity in control. Hence there is a need to reduce the line current harmonics so as to improve the power factor of the system. This has led to designing of Power Factor Correction circuits. This concept presents a power factor corrected (PFC) Buck–Boost converter-fed SMPS. This project deals with the design, analysis, simulation, and development of a power-factor-correction (PFC) multiple output switched-mode power supply (SMPS) using a Buck–Boost converter at the front end. Single-phase ac supply is fed to a pair of back-to-back connected buck–boost converters to eliminate the diode bridge rectifier, which results in reduction of conduction losses and power quality improvement at the front end. To observe the performance of this converter, a model based on the Buck Boost topology has been designed and developed software and implemented with Proportional-Integral (PI) and Fuzzy logic controller. The simulations are demonstrated in order to validate the effectiveness of the controllers in power factor improvement. By using MATLAB.

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