Title: Analysis, design and experimentation with a four-element resonant immittance converter topology as a constant-current power supply

Authors: Saylee Koli; Mangesh Borage; Sunil Tiwari

Addresses: Department of Electrical and Electronics Engineering, Chameli Devi Group of Institution, Indore 452020, India ' Department of Atomic Energy, Raja Ramanna Centre for Advanced Technology, Indore 452013, India ' Department of Atomic Energy, Raja Ramanna Centre for Advanced Technology, Indore 452013, India

Abstract: Resonant immitance converters (RICs) belong to a newly identified family of the resonant converters exhibiting unique characteristics with the help of which a voltage source can be converted to a current source and vice versa. Therefore, RICs are suitable for applications that demand a constant-current (CC) power supply. A fourth-order T-type RIC topology, T₅, is analysed in this paper. Detailed steady-state analysis using fundamental frequency ac analysis is presented providing a detailed insight into the converter characteristics. Analytical results have been used to derive closed-form expressions for calculating the component values and ratings following a converter optimisation. The correctness of analysis is validated by developing and testing a 500 W, 109 kHz laboratory prototype converter.

Keywords: resonant power conversion; dc-dc converters; resonant immittance converters; constant-current.

DOI: 10.1504/IJPELEC.2018.095094

International Journal of Power Electronics, 2018 Vol.9 No.4, pp.447 - 462

Received: 08 Mar 2017
Accepted: 06 Jun 2017
Published online: 01 Oct 2018 *

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