DBD dielectric barrier discharge

Dielectric barrier discharge is a non-equilibrium gas discharge in which an insulating medium is inserted into the discharge space, also known as dielectric barrier corona discharge or silent discharge. It is usually driven by a sine-wave AC high-voltage power supply. With the increase of the supply voltage, the state of the reactive gas in the system will undergo three stages of change, that is, it will gradually change from the insulating state to the final breakdown of the discharge. Dielectric barrier discharge can work in high pressure and wide frequency range, and the usual working pressure is 10-10000. The power frequency can be from 50Hz to 1MHz.