Switching frequency influence of flyback converter's nonlinear phenomena

Hsieh, Fei-Hu; Wang, Hen-Kung; Chang, Polun; Syu, Syuan-Hong

doi:10.1109/icmlc.2013.6890888

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…Reverse voltage (V rev ) appearing across diode when the MOSFET is on, is given by (7). V rev = (V in (max) + V RDS (on) )*(N 2 /N 1 ) + V out (7) Where V in (max) is the maximum input voltage and V RDS(on) is the voltage drop across the MOSFET due to on state resistance R DS(on).…”

Section: G Rectifier Diode and Output Capacitor Selectionmentioning

confidence: 99%

“…Current mode control is one of the commonly used control technique which not only regulate the output voltage but also limits peak load current. Simulink model of current mode controller IC, mathematical models and discrete-time analytic solutions of the Flyback converter are provided by the researchers in [6]- [7]. This research work aims at design and implementation of multiple outputs SiC device based Flyback converter in discontinuous conduction mode.…”

Section: Introductionmentioning

confidence: 99%

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Simulation and hardware implementation of 24 watt multiple output Flyback converter

Nagesha¹,

Sreedevi²,

Gopal

2015

2015 International Conference on Power and Advanced Control Engineering (ICPACE)

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DC-DC converters are mainly used to provide required output voltage by suitably controlling the pulse width modulated (PWM) signal given to the gate of the fast acting power electronics switches. Flyback converter is one such popular isolated DC-DC converter topology used to obtain regulated output voltage in low power applications. They are used as power supply systems in space technology and in many other industrial power electronics systems, where having constant voltage is very much essential. This paper presents Simulation and practical implementation of multiple output Flyback converter with Silicon Carbide (SiC) MOSFET as switching device. The designed Converter is observed to have a good output voltage regulation and higher efficiency for the wide input voltage range. Index Terms-Multiple output Flyback converter, Silicon Carbide MOSFET, Current mode controller, Converter efficiency. 978-1-4799-8371-1/15/$31.00 c 2015 IEEE

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Section: G Rectifier Diode and Output Capacitor Selectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simulation and hardware implementation of 24 watt multiple output Flyback converter

Nagesha¹,

Sreedevi²,

Gopal

2015

2015 International Conference on Power and Advanced Control Engineering (ICPACE)

View full text Add to dashboard Cite

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Application of 0-1 test for chaos on forward converter to study the nonlinear dynamics

Ali

Iqbal

Muqeet³

et al. 2022

Sci Rep

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DC–DC converters has significant role in the applied power electronic systems, distributed power systems, computers, home appliances and communication equipment. A converter must remain within the specified range of operation. The main goal of this paper is to discuss the nonlinear behavior of forward converter and highlighted the application of the 0-1 test by applying it on the forward converter. As forward converter may contains electronic components, which cause instability in the system. So, it is necessary to understand its behavior when specifications of components are changed. To study chaotic behavior, 0-1 test will be applied on the forward converter, which is a novel technique outperform in unearthing the subtle chaotic behavior in deterministic dynamical systems. The forward converter goes from period-1, period-2, period-4 and finally become chaotic when the load resistance is varied. This variation in the behavior of the forward converter are analysis through 0-1 test for chaos. Moreover, time series plot, phase portrait and Bifurcation diagram for forward converter is also drawn for the validation of results obtained from 0-1 test. Test algorithm is applied via MATLAB and simulation of forward converter via MultiSim by varying its load resistance.

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Bifurcation and chaos in high-frequency peak current mode Buck converter

et al. 2016

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Bifurcation and chaos in high-frequency peak current mode Buck converter working in continuous conduction mode (CCM) are studied in this paper. First of all, the two-dimensional discrete mapping model is established. Next, reference current at the period-doubling point and the border of inductor current are derived. Then, the bifurcation diagrams are drawn with the aid of MATLAB. Meanwhile, circuit simulations are executed with PSIM, and time domain waveforms as well as phase portraits in i L -v C plane are plotted with MATLAB on the basis of simulation data. After that, we construct the Jacobian matrix and analyze the stability of the system based on the roots of characteristic equations. Finally, the validity of theoretical analysis has been verified by circuit testing. The simulation and experimental results show that, with the increase of reference current I ref , the corresponding switching frequency f is approaching to low-frequency stage continuously when the period-doubling bifurcation happens, leading to the converter tending to be unstable. With the increase of f , the corresponding I ref decreases when the period-doubling bifurcation occurs, indicating the stable working range of the system becomes smaller.

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Switching frequency influence of flyback converter's nonlinear phenomena

Cited by 4 publications

References 11 publications

Simulation and hardware implementation of 24 watt multiple output Flyback converter

Simulation and hardware implementation of 24 watt multiple output Flyback converter

Application of 0-1 test for chaos on forward converter to study the nonlinear dynamics

Bifurcation and chaos in high-frequency peak current mode Buck converter

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