In this paper, deals with detailed analysis between MOSFET and IGBT.  There always a race between MOSFET and IGBT in the power electronics markets. This paper will gives the complete details about them. This paper also discuss how they are used for various applications. By reading this paper any beginners who wants to need detailed analysis between IGBT and MOSGET they can get.

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I. INTRODUCTION A new control method using hysteretic pulse width modulation for buck boost converter is zero steady state error in output voltage and the variation of output impedance with hysteretic pulse width modulation control is presented [1]. Hysteretic control for DC to DC is given by Sato. This paper has presented dynamic performance for large load variation [2]. Hysteretic controller for all types of DC to DC converter is given by Lin. This paper has given experimental verification for buck and boost converter [3]. DC to DC switching converter and its design philosophy using hysteretic controller is given by Ang. This paper has presented optimal gate driver design [4]. Analysis of buck converter system with hysteretic control is given by Onda. This paper has presented transient response output voltage for sudden change in load. Ramp voltage is generated using RC network and the same is used for the input to the comparator. Dynamic characteristics and steady state condition for buck converter were presented. The drawback of this scheme is the reduction in switching frequency [5]. Robust hysteretic control method for switching converter is presented by Nabeshima. This paper deals with hysteretic control using extra capacitor in the comparator and higher switching frequency was achieved with good dynamic performance. This circuit has provided stable operation during switching noises [6]. Modelling of PV system with converter topology is given by Umadevi. This paper has presented DC-DC converter topology with inverter for resistive load with various irradiations [7]. Closed loop control of three port converter with high voltage gain is given by Santhi mary. This paper has presented high voltage gain for the converter with PI controller along with three port converter topology [8].FLC for PV array simulator is given by Raja. This paper is discussed with converter and controller topology for the PV system [9]. The literature [1] to [9] do not deal with comparison of PI & Hysteretic based BBCCI systems to improve the dynamic response. This work proposes Hysteretic control to improve dynamic response and reduce the current ripple of BBCCI system. The organization of the paper is as follows: the system description is given in section 2.Analysis of converter and controller is presented in section 3. Simulation results with PI and Hysteretic controllers are given in section 4. Hardware results are given in section 5. Work is concluded in section 6.

The solar energy is a very interesting alternative on supplement the electrical system generation. In this paper, a photovoltaic based system is obtained from a boost cascaded with a buck converter along with Coupled inductor. Due to its novel operating modes, high efficiency can be achieved because there is only one switch operating at high frequency at a time, and the converter allows the use of power MOSFET and ultra-fast reverse recovery diode. This paper begins with theoretical analysis and modeling of this boost-buck converter. The model indicates that the coupled inductance will lead to an increase in the gain and the decrease in ripples. Finally, this paper analyzes and describes step by step the process of designing, and simulation of high efficiency low ripple voltage buck boost DC-DC converter for the photovoltaic solar conversion system