IJIREEICE ISSN (Online) 2321-2004 ISSN (Print) 2321-5526 International Journal of Innovative Research in Electrical, Electronics, Instrumentation and Control Engineering Vol. 7, Issue 6, June 2019 Copyright to IJIREEICE DOI 10.17148/IJIREEICE.2019.7607 35 A Review of Voltage Boosting Techniques for Step-up DC-DC Converter Deepanshu Gautam 1 , Ashok kumar Sharma 2 , Jyoti Shukla 3 Department of Electrical Engineering, Rajasthan Technical University, Kota, India 1,2,3 Abstract: Boost dc-dc converters are employed to uplifting the level of voltage from input to a higher output level. This paper presents a review on voltage boosting techniques and their application for step-up dc-dc converter. These boosting techniques comprise switched capacitor, voltage multiplier, multistage, magnetic coupling and switched inductor (voltage lifting). All of these techniques consider demerits and merits depending on applications in term of efficiency, reliability, cost, power density and complexity. Due to many difficult topologies and additional components, these techniques can not to define frame work of boost dc-dc converter. Therefore, boost dc-dc converter present clear picture to clarify several techniques of boosting up the voltage. Keywords: Coupled Inductors, Multilevel Converter, Multi-Stage, Boost Dc-Dc Converter, Switched Capacitor, Switched-Inductor, Voltage Multiplier I. INTRODUCTION Switched-mode boost dc–dc converters specified with the enlargement of PWM (Pulse Width Modulation) step-up converter. Topologies of boost converters convert dc input voltage (lower level) in to higher level at output. At present several boost DC-DC converters are operable for miscellaneous power conversion, which depends on multifarious applications. These step-up converters are dextrous in industry with more attention and high demand such as transportation, medical, physics, military and many other applications. With increasing demand of high boost converters, various voltage boosting techniques are presented for multiple power applications.[1] New techniques and topologies have desired features to boosting up the voltage gain and high power conversion, these features is reliability with high density of power, stability and efficiency [2]. Sometimes, some negative features can be generate due to power conversion which is cost, ripple, loss, Power Supply Rejection Ratio (PSRR) and Low Electromagnetic Interference (EMI). Fig. 1 Comprehensive classification of voltage boost techniques used for dc-dc converter However, substantially boosting techniques can remove negative features. Voltage boosting applications have acute demand to obtaining high voltage conversion ratio for boost dc-dc converter using miscellaneous voltage boosting techniques such as, voltage multiplier, multistage level, coupled inductors etc. Multiple switching cells and switching topologies make a enormous number of topologies, which can be used to modification and combination of voltage boosting techniques. According to applications, these modification techniques can be employed.