Indian Journal of Science and Technology, Vol 9(S1), DOI: 10.17485/ijst/2016/v9i(S1)/101921 December 2016 ISSN (Print) : 0974-6846 ISSN (Online) : 0974-5645 * Author for correspondence 1. Introduction Te Photovoltaic (PV) connected grid system in the residential areas is becoming a fast growing segment because of shortage of fuel cell. A new trend to use the generated PV power is to connect PV panels in parallel confguration rather than series confgure ration 1. A sliding mode controller based maximum power point tracking from PV panel is applied to Single Ended Primary Inductor Converter (SEPIC) 2 . An integrated fy back converter combining both Uninterruptible Power Supply (UPS) and Switching Mode Power Supplies (SMPS) is proposed where it has higher voltage at main input and low voltage backup at battery input 3 . A high efciency, high step up DC-DC Converter is implemented. It uses diodes and coupled windings to perform better than active clamp networks 4. A DC-DC boost converter with high voltage gain based on three switching cells is used to balance output voltage for split capacitor neutral clamped inverters 5 . A novel transformer-less quadrupler DC-DC converter with a high voltage gain is presented. It utilizes parallel input series output confguration to achieve high voltage gain without using an extremely larger duty cycle 6. An isolated coupled inductor based dc-dc converter with non-dissipative snubber is introduced. It adapts to dual voltage doubler circuit, and achieves high voltage gain 7 . A bidirectional sof switching current source fed full bridge isolated dc-dc converter is implemented. It eliminates the passive snubbers to clamp the voltage across the primary side devices, and employs zero current commutation 8. An active clamp fy back converter is proposed. It operates at high frequency. Zero voltage and zero current switching are implemented 9. A high gain dc-dc converter is studied. Here the voltage multiplier technique is used to achieve high voltage gain and voltage stress on the switch is reduced 10. A coupled inductor with dc-dc converter is modelled by using a new time averaging equivalent circuit, with continuous input and output current waveforms 11. An integrated structure of both coupled inductor and transformer is modelled and designed. Winding currents of coupled inductor and transformers are determined 12. An interleaved double dual boost converter is modelled, to achieve high voltage gain 13. An interleaved boost converter with coupled inductor uses two or more boost converters to increase output power and to reduce ripple 14 . High step up dc-dc converter uses a voltage doubler circuit to provide high voltage gain. Abstract Background/Objectives: In this paper, high voltage gain for a dc-dc converter is achieved by keeping duty cycle fixed. Methods/Statistical analysis: Here converter achieves the high voltage gain by keeping duty cycle fixed and simulation work is carried out in Matlab/Simulink environment. Findings: By using high frequency transformer and by using passive clamp networks such as diodes and capacitors high voltage gain for a dc-dc converter is achieved. Applications: It can be used in any low voltage source application such as PV, fuel cell etc. Keywords: High Gain High Efficiency DC-DC Converter, High Frequency Transformer, Magnetizing Inductance, Solar Photovoltaic, Switched Capacitor High Voltage Gain DC-DC Converter for Renewable Energy Applications K. Mohanraj, C. Ashwin Parthasarathy and Subhransu Sekhar Dash Department of Electrical and Electronics Engineering, SRM University, SRM Nagar, Potheri,Kattankulathur, Kancheepuram District, Chennai – 603203, Tamil Nadu, India; mohanraajkumar@gmail.com , ashwinpart@gmail.com, munu_dash_2k@yahoo.com