Periodic Perturbation Method for Controlling Chaos for a Positive Output DC-DC Luo Converter

2017 ◽  
Vol 8 (2) ◽  
pp. 775 ◽  
Author(s):  
P. Balamurugan ◽  
A. Kavitha ◽  
P. Sanjeevikumar ◽  
J.L. Febin Daya ◽  
Tole Sutikno
Keyword(s):  
Control Strategy ◽  
Chaotic Attractor ◽  
Current Mode ◽  
Chaotic Regime ◽  
Periodic Perturbation ◽  
Control Technique ◽  
Controlling Chaos ◽  
Stable Period ◽  
Feedback Method ◽  
A Current

<p>A simple, non-feedback method of controlling chaos is implemented for a DC-DC converter. The weak periodic perturbation (WPP) is the control technique applied to stabilize an unstable orbit in a current-mode controlled Positive Output Luo (POL) DC-DC converter operating in a chaotic regime. With WPP, the operation of the converter is limited to stable period-1 orbit that exists in the original chaotic attractor. The proposed control strategy is implemented using simulations and the results are verified with hardware setup. The experimental results of the converter with WPP control are presented which shows the effectiveness of the control strategy.</p>

Study of Control Chaos by Resonant Parametric Perturbation in H Bridge Converter

2010 ◽  
Vol 439-440 ◽  
pp. 457-462
Author(s):  
Wei Jiang ◽  
Yu Fei Zhou ◽  
Jun Ning Chen
Keyword(s):  
High Efficiency ◽  
Control Method ◽  
Chaotic Behavior ◽  
Autonomous Systems ◽  
Current Mode ◽  
Nonlinear Phenomena ◽  
Parametric Perturbation ◽  
Controlling Chaos ◽  
Stable Period ◽  
Parameter Variations

This paper introduces the phenomenon of nonlinear chaos of the peak current mode to control H bridge converter that has been known to become chaos for wide parameter variations after simulating to the model of H bridge converter. The natural reason of nonlinear phenomena can be explained by theoretical analysis. According to the characteristics of H bridge converter, resonant parametric perturbation was provided to suppress chaotic behavior of the converter and made the system changing from chaos to stable period. It is an effective non-feedback method for controlling chaos and it is such a suitable control method for controlling chaos in non-autonomous systems. Selecting the best perturbation phase to achieve the best chaos control results can optimize the method of resonant parametric perturbation. The control method suppresses chaos with high efficiency and it can provide theoretical basis for stability design of H bridge converter.

Control of Chaos in a Current Mode Controlled Buck Boost Converter Using Weak Periodic Perturbation Method

2017 ◽  
Vol 8 (4) ◽  
pp. 1467
Author(s):  
P. Sriramalakshmi ◽  
A. Kavitha ◽  
P. Sanjeevikumar ◽  
Tole Sutikno ◽  
Pandav Kiran Maroti ◽  
...  
Keyword(s):  
Hardware Implementation ◽  
Software Tool ◽  
Current Mode ◽  
Boost Converter ◽  
Periodic Perturbation ◽  
Nonlinear Phenomena ◽  
Control Of Chaos ◽  
Chaotic Region ◽  
Linear Elements ◽  
A Current

<p>This paper analyses the nonlinear phenomena in current mode controlled buck-boost converter. The system undergoes various operating regions whenever there is a change in non linear elements presented in the system as well as in the loads. In this work, inductor current is considered as the reference for analysis.The results show that the converter enters into period-1, periodic doubling and chaotic regions as per the parameter (I<sub>L</sub>) variations.  The proposed control strategy, weak periodic perturbation (WPP) method tries to stabilize the system from the chaotic behavior.The buck boost converter along with the control system is simulated using MATLAB/SIMULINK software tool and the results are presented.The hardware implementation of the system is done and the results are verified with  the simulation results. It shows that the WPP can transform the system behaviour from the chaotic region to the periodic one. </p>

Synthesis for Butterworth Filter Using Compact VDTA Based on Sallen- Key Topology

2020 ◽  
Vol 13 (5) ◽  
pp. 681-688
Author(s):  
Yong-An Li
Keyword(s):  
Network Theory ◽  
Current Mode ◽  
Second Order ◽  
Frequency Filter ◽  
Butterworth Filter ◽  
Admittance Matrix ◽  
Floating Capacitor ◽  
A Current

Background: The original filter including grounded or virtual ground capacitors can be synthesized by using the NAM expansion. However, so far the filters including floating capacitor, such as Sallen-Key filter, have not been synthesized by means of the NAM expansion. This is a problem to be researched further. Methods: By using the adjoint network theory, the Sallen-Key filter including floating capacitor first is turned into a current-mode one, which includes a grounded capacitor and a virtual ground capacitor. Then the node admittance matrix, after derived, is extended by using NAM expansion. Results: At last, one VDTA Sallen-Key filter is received. It employs single compact VDTA and two grounded capacitors. Conclusion: A Butterworth VDTA second-order frequency filter based on Sallen-Key topology with fo = 100kHz, HLP = -HBP=1, is designed.

CDBA based current instrumentation amplifier

2016 ◽  
Vol 4 ◽  
pp. 11 ◽  
Author(s):  
Priyanka Gupta ◽  
Kunal Gupta ◽  
Neeta Pandey ◽  
Rajeshwari Pandey
Keyword(s):  
Current Mode ◽  
Instrumentation Amplifier ◽  
Pspice Simulations ◽  
Differential Gain ◽  
Novel Method ◽  
Current Difference ◽  
A Current

This paper presents a novel method to realize a current mode instrumentation amplifier (CMIA) through CDBA (Current difference Buffered Amplifier). It employs two CDBAs and two resistors to obtain desired functionality. Further, it does not require any resistor matching. The gain can be set according to the resistor values. It offers high differential gain and a bandwidth, which is independent of gain. The working of the circuit is verified through PSPICE simulations using CFOA IC based CDBA realization.

A Current-Mode Controller For an HB-NPC Inverter Using the Virtual-Ground Trajectory for Power Injection in PV Systems

2020 ◽  
Author(s):  
S. Iturriaga-Medina ◽  
P. R. Martinez-Rodriguez ◽  
G. Escobar ◽  
J. C. Mayo-Maldonado ◽  
J. E. Valdez-Resendiz ◽  
...  
Keyword(s):  
Current Mode ◽  
Pv Systems ◽  
Power Injection ◽  
A Current

scholarly journals A Current-Mode Four-Phase Synchronous Buck Converter with Dynamic Dead-Time Control

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Jun Tang ◽  
Tian Guo ◽  
Jung Sik Kim ◽  
Jeongjin Roh
Keyword(s):  
Dead Time ◽  
Current Mode ◽  
Buck Converter ◽  
Time Control ◽  
A Current
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