Micropayment system provides a means of transferring small monetary amounts and serve as a convenient alternative to traditional payment arrangements. Micropayments refer to low value electronic transactions. They provide an alternative revenue source for content providers beyond advertising and subscriptions (W3C).
The sinusoidal pulse width modulation (SPWM) is one of the most popular modulation technique used in wide range of industrial application where power switching converter are employed. Low ratio of carrier frequency (fc) to modulation frequency (fm) is the best from of modulation for high power application.
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