A particular compact and economic DBD plasma generator can be built based on the principles of the piezoelectric direct discharge. In this technique, the high voltage is generated with a piezo-transformer, the secondary circuit of which acts also as the high voltage electrode. Since the transformer material is a dielectric, the produced electric discharge resembles properties of the dielectric barrier discharge.M. Teschke and J. Engemann, Contrib. Plasma Phys. 49, 614 (2009)M. Teschke and J. Engemann, US020090122941A1, U.S. Patent application
