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In this article, a novel class-E amplifier topology, based on the functioning principle of the stacked converters, is presented. In this amplifier the available output electric power is determined by the addition of the electric power generated by each of the associated devices. Herein, two MOSFETs connected in series are linked, on the one hand, to a dc voltage source and, on the other hand, to a resonant $LC$ circuit and a resistance charge connected in parallel to the capacitor. Both MOSFETs are driven by a gate-to-source square signal allowing a synchronized commutation, promoting a quasi-resonant amplifier behavior similar to that of the classical class-E amplifier; with the characteristic of being able to manage the double of applied dc voltage amplitude and to supply twice electric power to the same load in comparison with the class-E amplifier. This device is able to distribute the same electric power between both MOSFETs, reducing at almost half the magnitude of applied drain-to-source voltage. As a result, voltage stress of each power switch is reduced in comparison with the typical class-E amplifier. Drain efficiency (DE), power added efficiency, and gain of the proposed device were obtained in function of the applied dc voltage.

The design and construction of a full-bridge flying capacitor multicell inverter (FCMI) composed of two legs is disclosed. Each leg consists of three switching cells. In order to control the power converter, a square wave signal switching technique has been used; the converter output frequency has increased at three times the switching frequency. Moreover, the system can be tuned by a variable inductor coupled with a high-voltage transformer allowing the FCMI to work under a resonance condition from 10- to 30-kHz frequency range. The goal of this converter is to generate a dielectric barrier discharge (DBD) at atmospheric pressure applied in environmental remediation and biological interaction studies. The proposed inverter has been tested with two different DBD reactors, one of them intended for the degradation of organic compound metacresol dissolved in water.