Lekshmi S. currently serves as Assistant Professor(Sr.Gr) at department of Electrical & Electronics, Amrita School of Engineering, Banglore campus. She has more than 10 years of teaching experience. She did  BE in Electrical and Electronics Engineering and Masters in Power Electronics. She is currently working in the area of DC Microgrids.


2012  M.Tech. ASE, Bengaluru   Amrita Vishwa Vidyapeetham
2000 B.E. Amrita Institute of Technology & Science Bharathiar University, Coimbatore


Publication Type: Conference Paper

Year of Publication Title


M. R. Anaghakrishnan, Dr. Shankar S., and Lekshmi S, “A novel AC-AC converter using bridgeless flyback rectifier and flyback CCM inverter”, in 2016 Biennial International Conference on Power and Energy Systems: Towards Sustainable Energy (PESTSE), 2016.[Abstract]

The performance analysis of an AC-AC converter which is the combination of flyback rectifier with a bridgeless configuration and flyback inverter in a continuous conduction mode is discussed here. Compared to the basic bridge diode topology, the flyback rectifier with a bridgeless configuration can solve the problems related to conduction losses appearing in the primary side and improves the efficiency with a few circuit elements in place of bridge diodes. The flyback inverter which is operated in a continuous conduction mode (CCM) has lower peak currents and higher efficiencies. A comparative study of this modified circuit with the normal circuit arrangement having ac-dc converter and dc-ac inverter is presented. The simulation of the proposed model is implemented in MATLAB platform.

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C. V. Krishnapriya, Kochuvila, S., and Lekshmi S, “Bidirectional buck-boost cascade inverter”, in Proceedings of IEEE International Conference on Technological Advancements in Power and Energy, TAP Energy 2015, 2015, pp. 114-120.[Abstract]

This paper presents modelling and closed loop control of bidirectional buck boost cascade inverter, which produces an ac output voltage larger than the dc input voltage. The bidirectional inverter is seen as the cascade of a buck stage and a boost stage. The function of buck stage is to maintain main inductor current as a constant value and boost stage is a Current Source Inverter (CSI), which regulates the output voltage. A decoupled analog control scheme is used for inductor current control and output voltage control. © 2015 IEEE.

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M. Vikraman Nair and Lekshmi S, “Reconfigurable Solar Converter for PV battery application”, in Electronics, Communication and Computational Engineering (ICECCE), 2014 International Conference on, 2014.