Single-Switch Power Supply based on the Class E Shunt Amplifier for Ozone Generators

Ponce-Silva, Mario; Aguilar-Ramirez, J.; Beutelspacher, E.; Calderon, J.M.; Cortes, Christopher J.

doi:10.1109/pesc.2007.4342196

Cited by 24 publications

(12 citation statements)

References 6 publications

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“…Correspondingly, the equivalent series resistance of the inductor reduces the efficiency of the 0885-8993/$31.00 © 2012 IEEE power supply. In [20]- [22], ozone power supply using class-E resonant inverter is presented. However, it is observed that the voltage waveform across the chamber is nonsinusoidal.…”

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confidence: 99%

Analysis and Implementation of Transformerless LCL Resonant Power Supply for Ozone Generation

Amjad

Salam

Facta

et al. 2013

IEEE Trans. Power Electron.

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Abstract-This paper describes the analysis and design of an LCL resonant power supply for ozone generation. The main advantage of the proposed topology is the absence of high-voltage transformer; the high voltage gain is achievable by means of doubleresonance phenomena. Furthermore, the bandwidth is wider than the ordinary LC and its phase difference is constant over specific frequency range; as a result, an open-loop operation can be implemented. The complete analysis and design procedure of the power supply is presented. The design procedure is verified by implementing the power supply to drive a dielectric barrier discharge prototype ozone chamber. The hardware results are found to be in close agreement with simulation and thus justify the validity of the design procedures. The proposed circuit is suitable for portable ozone power supply fed by low-voltage source such as battery or photovoltaic module.Index Terms-Dielectric barrier discharge (DBD), full-bridge inverter, high-voltage power supply, LCL resonant circuit, ozone generation.

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confidence: 99%

Analysis and Implementation of Transformerless LCL Resonant Power Supply for Ozone Generation

Amjad

Salam

Facta

et al. 2013

IEEE Trans. Power Electron.

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“…Utilizing the values of L S1 and C p from the calculations and using (18) and (19), the Matlab/Simulink model shown in Fig. 10 provides the transient behavior of the circuit.…”

Section: Transformer-less Resonant Circuit Analysismentioning

confidence: 99%

Analysis, Design, and Implementation of Multiple Parallel Ozone Chambers for High Flow Rate

Amjad

Salam

2014

IEEE Trans. Ind. Electron.

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It is well known that ozone concentration depends on air/oxygen input flow rate and power consumed by the ozone chamber. For every chamber, there exists a unique optimum flow rate that results in maximum ozone concentration. If the flow rate is increased (beyond) or decreased (below) from this optimum value, the ozone concentration drops. This paper proposes a technique whereby the concentration can be maintained even if the flow rate increases. The idea is to connect n number of ozone chambers in parallel, with each chamber designed to operate at its optimum point. Aside from delivering high ozone concentration at high flow rate, the proposed system requires only one power supply to drive all these (multiple) chambers simultaneously. In addition, due to its modularity, the system is very flexible, i.e., the number of chambers can be added or removed as demanded by the (output) ozone requirements. This paper outlines the chamber design using mica as dielectric and the determination of its parameters. To verify the concept, three chambers are connected in parallel and driven by a single transformer-less LCL resonant power supply. Moreover, a closed-loop feedback controller is implemented to ensure that the voltage gain remains at the designated value even if the number of chambers is changed or there is a variation in the components. It is shown that the flow rate can be increased linearly with the number of chambers while maintaining a constant ozone concentration.Index Terms-Dielectric barrier discharge (DBD), high-voltage power supply, ozone chamber, ozone concentration, resonant inverter.

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“…This problem is not unique for pulsating waveforms; circuits feeding the DBD with sinusoidal waveforms provide efficiencies below 90%. As an example, in order to compensate the reactive energy and increase the power factor of the DBD, some topologies have been proposed where an inductor is added in series with the DBD . Generally, this inductor has a considerable size, and in order to reduce it a capacitor is placed in parallel with the DBD .…”

Section: Introductionmentioning

confidence: 99%

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

Ponce-Silva

Aquí-Tapia²,

Arellano

et al. 2018

Circuit Theory & Apps

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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%.

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Single-Switch Power Supply based on the Class E Shunt Amplifier for Ozone Generators

Cited by 24 publications

References 6 publications

Analysis and Implementation of Transformerless LCL Resonant Power Supply for Ozone Generation

Analysis and Implementation of Transformerless LCL Resonant Power Supply for Ozone Generation

Analysis, Design, and Implementation of Multiple Parallel Ozone Chambers for High Flow Rate

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

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