A new method to control the Buck converter using new small signal model of the pulse width modulation (PWM) switch is introduced. The new method uses recurrent supervised neural network to estimate certain parameters of the transformed system matrix [ A~ ]. Then, linear matrix inequality (LMI) optimization is used to obtain the permutation matrix [P] so that system transformation {[ B~ ], [ C~ ...

Brushless DC motors (BLDC) are widely used in industrial areas. The BLDC motors are driven either by indirect ACAC converters or by direct AC-AC converters. Direct AC-AC converters i.e. matrix converters are used in this paper to drive the three phase BLDC motor and it eliminates the bulky DC link energy storage element. A matrix converter converts the AC power supply to an AC voltage of variab...

In this paper a convex optimization approach to design a robust state feedback control is proposed for DC-DC converter systems with mixed delays. Based on the Lyapunov theory, some required sufficient conditions are established in terms of delay-dependent linear matrix inequalities for the stochastic stability and stabilization of the considered system using some free matrices. The desired cont...

In our paper, a method of using hybrid converter has been implemented. In the existing system, two stage approaches has been used. This two stage approach is both dc –dc converter and dc – ac Converter. This type of converters mentioned above has been used in the earlier stages, but the drawbacks that can be seen is increased cost and complexity. The proposed method mainly uses boost derived hy...

This study presents a new modulation method for multidirectional matrix converter (MDMC), based on the direct duty ratio pulse width modulation (DDPWM). In this study, a new structure of MDMC has been proposed to control the power flow direction through the stand-alone battery based system and hybrid vehicle. The modulation method acts based on the average voltage over one switching period conc...

Matrix Converter is a near ideal static frequency changer which provides solution to the problem of converting ac from one frequency and one magnitude to variable frequency and variable magnitude ac, without any bulky energy storing components like capacitors or inductors. One of the major obstacles towards commercial acceptance of this topology has been the commutation of the bidirectional swi...

The field of soft conversion from one form to another has always been an area of continuous development. However, the recent developments are endorsed to exploring efficient means of single stage AC-AC conversion. Eliminating the energy loss involved in two stage AC-AC conversion has been the focal point for researchers these days. Thus, the present study is devoted to presents the most wanted ...

A novel two-dimensional vertical cavity surface emission laser (VCSEL) based wavelength converter is proposed. We developed a twodimensional transmission line laser model (TLLM) to analyze the proposed wavelength converter. This model takes into account Bragg reflectors by using the modified connecting matrix. Therefore, accurate and efficient modeling of the VCSEL structure is achieved. Extinc...

To build a digital to analog converter, that only receives digital signal that can only receives digital signal and produces only analog signal. A converter in which digital input signals are changed to essentially proportional analog signals. Abbreviated DAC a device for converting information in the forms of combination of discrete(usually binary) states or signal to information in the form o...