Analysis and Design of LCS Resonant Cell Based Enhanced Zero-Voltage Transition DC-DC Boosting Converter

Nagarajan, Anandh and Fusic, Julius S (2019) Analysis and Design of LCS Resonant Cell Based Enhanced Zero-Voltage Transition DC-DC Boosting Converter. Serbian Journal of Electrical Engineering, 16 (1). pp. 105-121. ISSN 1451-4869

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An enhanced zero-voltage transition boosting converter (EZVTBC) is introduced here which belongs to higher-order family. It exhibits lower source current and load voltage ripples and also it maintains better voltage gain with respect to traditional step-up converter. The zero-voltage transition is attained with an aid of a LCS resonant cell integrating Lr  Cr resonance tank network along with an extra switch. LCS resonant cell is the modified version of conventional ZVT switch cell and the salient feature of this cell is to eliminate peak current stress and conduction losses of main switch as this remains a predominant problem in hard-switched boost converter and it also improves efficiency. Initially, time domain expressions of EZVTBC are derived using Kirchhoff’s laws for different operational stages to predict the resonant transition phenomenon. The simulation is progressed in PSIM software in order to verify its soft-switching performance on a 12 – 24 V, 30 W converter and also dynamic performance of the converter has been studied with line and load variations. It is found that for rated load conditions, efficiency of the soft-switched converter is improved 5 to 10% approximately and resulted in 97%. Moreover the peak current stress and conduction losses were eliminated

Item Type: Article
Uncontrolled Keywords: Enhanced ZVT Boosting Converter, LCS resonant cell, Soft- Switching, Zero-Voltage Transition, Peak Current Stress
Subjects: Engineering > MIT Manipal > Electrical and Electronics
Engineering > MIT Manipal > Mechatronics
Depositing User: MIT Library
Date Deposited: 08 Apr 2019 06:56
Last Modified: 08 Apr 2019 06:56

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