A digital controlled dielectric barrier discharge (DBD) AC (Alternative current) power supply is designed and investigated. The power source design with a diode bridge rectifier and PWM (Pulse Width Modulation) inverter along with driver circuits are presented. A step-up transformer is designed to carry 4.6 kW and 10 kVp-p for a dielectric barrier discharge (DBD) AC power supply and ozone generation. An STM (STMicroelectronics) microcontroller is employed to control the phase shift angle of the PWM inverter. The operating frequency of the PWM inverter is 25 kHz. Zero voltage detection can be reached and achieves maximum efficiency. Also, a high voltage transformer is included. The practical results shown that the DBD power supply can be controlled at the chosen value and extreme efficiency can be 87.45 % at 4.6 kW/10 kVp-p.

中文翻译：

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用于臭氧产生的数字控制介电阻挡放电（DBD）交流电源的设计与开发

设计并研究了一种数字控制介电势垒放电（DBD）AC（交流）电源。提出了具有二极管桥式整流器和PWM（脉冲宽度调制）逆变器以及驱动器电路的电源设计。升压变压器的设计功率为4.6 kW和10 kVp-p，用于介质阻挡放电（DBD）交流电源和臭氧的产生。使用STM（STMicroelectronics）微控制器来控制PWM逆变器的相移角。PWM逆变器的工作频率为25 kHz。零电压检测可以达到并实现最大效率。另外，还包括高压变压器。实际结果表明，在4.6 kW / 10 kVp-p的情况下，可以将DBD电源控制在选定的值，并且极端效率可以达到87.45％。