Zero-Voltage-Transition Synchronous DC-DC Converters with Coupled Inductors

Akbar Rahimi; Mohammad Reza Mohammadi

Zero-Voltage-Transition Synchronous DC-DC Converters with Coupled Inductors

Akbar Rahimi

Mohammad Reza Mohammadi

Vol. 16, No. 1, pp. 74-83, Jan. 2016

10.6113/JPE.2016.16.1.74

Coupled inductors

Synchronous converters

Synchronous rectifier

Zero voltage switching

PDF

Abstract

A new family of zero-voltage-transition converters with synchronous rectification is introduced in this study. Soft switching condition for all the converter operating points is provided in the proposed converters. The reverse recovery losses of the rectifier switch body diode are also eliminated. In comparison with the main switch voltage stress, the auxiliary switch voltage stress is reduced significantly. The auxiliary switch does not need the floating gate drive. The auxiliary inductor is coupled with the main converter inductor, and the leakage inductor is used as the resonance inductor. Thus, all inductors of the proposed converter can be implemented on a single core. The other features of the proposed converters include no extra voltage and current stresses on the main converter semiconductor elements. Theoretical analysis for a synchronous buck converter is presented in detail, and the validity of the theoretical analysis is justified with the experimental results of a prototype buck converter with 180 W and 80 V to 30 V.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

A. Rahimi and M. R. Mohammadi, "Zero-Voltage-Transition Synchronous DC-DC Converters with Coupled Inductors," Journal of Power Electronics, vol. 16, no. 1, pp. 74-83, 2016. DOI: 10.6113/JPE.2016.16.1.74.

[ACM Style]

Akbar Rahimi and Mohammad Reza Mohammadi. 2016. Zero-Voltage-Transition Synchronous DC-DC Converters with Coupled Inductors. Journal of Power Electronics, 16, 1, (2016), 74-83. DOI: 10.6113/JPE.2016.16.1.74.