Power supply based on a multi‐stage‐shunt class E amplifier applied to ozone generation with high efficiency

Abstract

Summary In this paper, the analysis, design, and implementation of a power supply based on a multi‐stage‐shunt class E amplifier applied to ozone generation are presented. The proposed topology operates with pulsating waveforms and allows unidirectional energy flow from the power supply to the load with no energy return. Furthermore, due to the multi‐stage operation, it presents a lower stress in the switches compared with other similar topologies. To validate the proposed topology, a prototype was designed to feed a set of ozone generating cells in a power range of 0 to 500 W. This prototype provides an efficiency of 95% with an ozone production of 10.5 g/h and efficacy of 22.89 g/kWh. The proposed power supply is an alternative to feed any other type of dielectric barrier discharge load while keeping the efficiency of the power supply above 90%.

Design of Capacitive Power Transfer System with Small Coupling Capacitance for Wireless Power Transfer

“…From the analysis of the contents of Figure 1, the following assumptions were made in deriving the design equation. [14] Assume that the resistance inside it is zero, so the DC voltage drop across the choke is zero. [15] When the inductance of the choke coil L is large enough, we can ignore the current ripple.…”

Increased Efficiency of a Current Compensating Load Modulation Based MMIC Doherty Power Amplifier Design In 0.25m GaAs pHEMT Technology

“…The galloping rate of progress in global wireless communication based on which the outermost parts of the world are in contact needs high efficient transceivers by which the demand of portable devices assigned for the mass communication can be met [1][2][3][4][5]. Power amplifiers as subsystems in transceivers always have been in great interest of research [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] due to their influence on the efficiency and linearity of whole systems. There is a plethora of novel structures and models proposed to develop PA's efficiency and linearity, such as envelope tracking [26], out-phasing [27], class E and class F PAs [11,28], DPA [29], to name but a few.…”

“…Power amplifiers as subsystems in transceivers always have been in great interest of research [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] due to their influence on the efficiency and linearity of whole systems. There is a plethora of novel structures and models proposed to develop PA's efficiency and linearity, such as envelope tracking [26], out-phasing [27], class E and class F PAs [11,28], DPA [29], to name but a few. Among them, DPA has received dramatic acceptance due to its compatibility to deal with the increased PAPR signals [29].…”