Simulation and Performance of Modified Coupled Inductor based SEPIC Converter with High Static Gain
Naresh. C1, Karthikeyan. R2

1Naresh.C, Assistant Professor, St. Joseph‘s Institute of Technology, Chennai, India.

2Karthikeyan. R, Associate Professor, Sri Venkateswara College of Engineering, Sriperumbudur, Chennai, India.

Manuscript received on 05 March 2019 | Revised Manuscript received on 17 March 2019 | Manuscript Published on 22 March 2019 | PP: 373-379 | Volume-8 Issue-5S April 2019 | Retrieval Number: ES3447018319/19©BEIESP

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Abstract: This paper proposes amodified SEPIC converter in coupled inductor based high gain dc-dc converter. The proposed topology presents low switch voltage and high efficiency for low input voltage, low ripple current and high output voltage applications. Two alternatives with and without magnetic coupling are analyzed. The magnetic coupling allows increasing the static gain with a reduced switch voltage. The theoretical analysis and experimental results are presented. The efficiency obtained with the prototype without magnetic coupling was 81%, 83.2%.With magnetic coupling85.5% was improved to nominal output power. Efficiency equal to 85% was obtained with the prototype model.

Keywords: Multi-Converter System, Single-Ended Primary Inductance Converter (SEPIC).Coupled Inductor, Pulse width Modulation (PWM).
Scope of the Article: Communication