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Implementation of Full-Bridge Current-Fed Resonant Boost Converter using PIC microcontroller
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 1 - Number 7 |
| Year of Publication: 2010 |
| Authors: S.Ajitha, N.Kalaiarasi |
10.5120/159-283
|
S.Ajitha, N.Kalaiarasi . Implementation of Full-Bridge Current-Fed Resonant Boost Converter using PIC microcontroller. International Journal of Computer Applications. 1, 7 ( February 2010), 76-81. DOI=10.5120/159-283
Abstract
This paper presents a current-fed full-bridge boost DC-AC-DC converter with transformer isolation operating without switching power dissipation. The output voltage is regulated by dc-ac converter whose frequency changes with a constant turn-off time of transistors. The proposed converter is devoid of parasitic oscillations, as all of the parasitic capacitances and inductances are included in a resonant tank circuit. The main advantage of such systems is that they include a capacitive output filter, which is preferred in higher voltage applications. Moreover, it achieves ZCS for all active switches and zero-voltage switching (ZVS) operation for all diodes on high voltage side, which is an additional benefit. In this paper, the system operation is first explained, then a mathematical description that is useful for its design is provided, and finally, a report on the implementation of a laboratory prototype with 125W power is presented.
References
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