High power amplifier11/11/2022 Self, Audio power amplifier design handbook, Focal Press, 5ª Edição, Burlington, 2009. Rajashekara, “A high power density single-phase PWM rectifier with active ripple energy storage”, IEEE Trans. Kolar, “Impact of EMC filters on the power density of modern three-phase PWM converters”, IEEE Trans. Round, “PWM converter power density barriers”, in Proc. Janssen, “Excitação de etapas de potência classe AB: uma nova abordagem”, Eletrônica de Potência, vol. Finally, an experimental case study is analyzed and future trends in research on HPAs are addressed. Therefore, this paper can be useful for one who is starting researching on this field or aims to select a suitable hybrid arrangement for a given application. The topologies proposed hitherto are analyzed from the circuit and control perspective. This way, through a review of literature, this work aims to identify the features of each configuration, highlighting its benefits and possible limitations. Each configuration holds particular characteristics that can be advantageous in some applications meanwhile to be quite stringent in others. According to the connection of the linear and the switched amplifiers, the HPAs are classified as envelope, parallel and series configurations. With the aim of synthesizing high-fidelity voltage waveforms without penalizing the system efficiency, several works have proposed hybrid power amplifiers (HPAs), composed of linear and switching amplifiers, combining the benefits of each approach. Keywords: AC Power Source, Hybrid Amplifier, Linear Amplifier, multilevel inverter, Switching Amplifier
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