scholarly journals Modified Fourth-Order Buck-Boost Converter

2020 ◽  
Vol 11 ◽  
pp. 33-41
Author(s):  
Felix A. Himmelstoss ◽  
Karl Edelmoser
Keyword(s):  
Transfer Function ◽  
Fourth Order ◽  
Input Current ◽  
Small Signal ◽  
Constant Input ◽  
Signal Model ◽  
Small Signal Model ◽  
Transformation Ratio ◽  
Original Topology ◽  
Output Capacitor

Some hundred DC/DC converters have been constructed. Here a modified one is investigated. The modification consists in the position of the output capacitor. This does not change the voltage transformation ratio, but leads to constant input current compared to a pulsating one in the original topology. The function of the converter is investigated by inspection and by constructing the signals, the large and small signal model of the converter and the transfer function are derived, dimensioning hints are given and simulations are shown.

Model Reduction and Controller Design of a DC-DC Converter

2014 ◽  
Vol 548-549 ◽  
pp. 715-718
Author(s):  
Lin Bing Wang ◽  
Jia Jia Liu ◽  
Hai Fei Chen ◽  
Yue She ◽  
Yang Zhou Wang
Keyword(s):  
Transfer Function ◽  
Model Reduction ◽  
Controller Design ◽  
Small Signal ◽  
Signal Model ◽  
Forward Converter ◽  
Reduced Order ◽  
Small Signal Model ◽  
Proposed Model ◽  
Bode Plots

The reduced-order small-signal model and controller design of a two-transistor forward converter（TTFC）are presented in this paper. First, the small-signal circuit model and transfer function of control to output are found for the TTFC. Then by finding dominant energy poles of the transfer function, the model reductions are performed and the controller design of the converter is simplified. The effective of the proposed model reduction and controller design are demonstrated by bode plots and experimental results.

Power-Dependent Small-Signal Model for Fluorescent Lamps Based on a Double-Pole Double-Zero Transfer Function

2013 ◽  
Vol 49 (1) ◽  
pp. 341-347 ◽  
Author(s):  
Ramon E. Diaz ◽  
Javier Ribas ◽  
Antonio J. Calleja ◽  
Manuel Rico-Secades ◽  
Jorge Garcia ◽  
...  
Keyword(s):  
Transfer Function ◽  
Small Signal ◽  
Double Pole ◽  
Double Zero ◽  
Signal Model ◽  
Fluorescent Lamps ◽  
Small Signal Model

Small-signal Model and Dynamics of MMC- HVDC Grid under Unbalanced Grid Conditions

2020 ◽  
pp. 1-1
Author(s):  
Quanrui Hao ◽  
Zheng Li ◽  
Chenjing Yue ◽  
Feng Gao ◽  
Shuying Wang
Keyword(s):  
Small Signal ◽  
Signal Model ◽  
Small Signal Model ◽  
Unbalanced Grid
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