Author(s): M.Rekha, Mr.K.P.Swaroop
Published in: International Journal of Engineering Research & Technology
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Volume/Issue: Vol.1 - Issue 7 (September - 2012)
In this paper, Boost and Buck-Boost converters are used for direct AC-DC conversion without using the front-end bridge rectifier as the bridge rectification is inefficient and is not practical for low voltage microgenerators. The proposed converter consists of the above two converters which are connec- ted in parallel and are operated in the positive and negative half cycles respectively. They are operated in the discontinuous mode to minimize the losses as they are significant in the conversion of low voltage ac to the required dc voltage. Analysis of the converters is carried out to obtain the relation between the power and the duty cycle of the converter. A self starting circuit is proposed for independent operation of the converter. Simulation results are presented to validate the proposed converter.
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