A. Jeyalakshmi

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In this paper, the performance of parallel resonant converter (PRC) including the effect of transformer leakage inductance is investigated. Analysis of a second order PRC shows that higher current gain can be achieved for a particular range of resonant frequencies if the transformer leakage inductance is also included. Simulation results show that the(More)
This paper proposes an improved wavelet transform based technique for hiding binary watermark images in gray scale cover images. Taking cue from the spread spectrum technique, the proposed method hides data in the two mid-frequency sub bands, randomly choosing between them. Exhaustive simulations show that the proposed simple technique has very good(More)
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