P. Pichugin, V. G. Telegin, G. G. Telegin Chuvash State University, 15 Moskovsky av., Cheboksary, 428015, Russia E-mail: andreev_vsevolod@mail.ru The combined (dual) barrier electric discharge is investigated in the air at an atmospheric pressure. <...> It is created in the discharge chamber with two pairs of electrodes of different configurations. <...> The electrodes are connected to two independent high voltage power supply. <...> The plasma-chemical synthesis of ozone was investigated depending on the parameters of the discharge contours each. <...> The analysis was performed in terms of effectiveness and practical application of the combined barrier discharge. <...> PACS 52.80.Tn Keywords: combined barrier discharge, main discharge, control discharge, plasma-chemical synthesis of ozone, the current-voltage characteristics, dielectric barrier. <...> Исследован при атмосферном давлении в воздухе комбинированный (сдвоенный) барьерный электрический разряд. <...>