Series-connected high voltage delayed breakdown device switches applied to pulse trigger generator for fast risetime

High power delayed breakdown device(DBD) switches containing fifteen seriesconnected semiconductor structures are introduced. The seriesconnected DBD switches have been applied to fast risetime trigger generator. The experimental results show that the input pulse is sharpened significantly by seriesconnected DBD switches.The seriesconnected DBD switches have a holdoff voltage 60 kV, and the risetime is reduced from 95 ns to 21.5 ns.The pulse width of output pulse is 50 ns．